Spring bloom as of Wednesday, May 13

It’s time to enjoy all the shades of green that summer brings, along with the flowers of gardens and prairies to be seen throughout the season at The Morton Arboretum.

This is the final Spring Bloom Report for 2026. Weather kept many plants’ bloom times brief this year, with alternating warm and cool spells, heavy rains, and frosts. Yet there are still flowers to enjoy as you plan a summer full of visits to the Arboretum for lively events, blooming gardens, carefree play, and the beauty of nature.

Visitor Center area, including parking lot P-1, Administration and Research Center and The Grand Garden: Both blue and white periwinkle are still in flower, along with white snowdrop anemones, and white-flowering cotoneaster.Lavender-pink Korean lilacs are still blooming, along with Winter Beauty blood-twigged dogwood. Look for blue flowers including pale blue Arkansas bluestar, dark blue salvia, and dark blue-purple false indigo.

On the East Side

Northern Illinois and Midwest Collections (parking lot P-2): Trees and shrubs in bloom include white-flowered nannyberry viburnum, chokeberry, and alternate-leaved dogwood. Catkins, or dangling male flowers, can be seen on many kinds of oak trees.

Frost Hill and Conifer Collection (parking lot P-3): The view from Frost Hill across the river valley is beautifully green. Three alternate-leaved dogwoods add bloom and color.

Crabapple Lake (parking lot P-4): A few chokeberries and mountain-ash trees are still in flower amid the green.

East Woods (parking lots P-8 through P-16): The woodland wildflower season is nearly done. The few flowers still in bloom include blue woodland phlox; pink wild geranium; green and maroon Jack-in-the pulpit; and white May-apples.

Maple Collection and Beech Collection (parking lot P-14): Look for white to lavender shooting stars in bloom among the nearby prairie grasses.

Eastern North America Collection and Temperate Asia Collection (parking lot P-16 to parking lot P-18): White flowers of black-locust trees are in full bloom.

On the West Side

Founder’s Grove (parking lot P-20): A few last blue woodland phlox and pink wild geranium blooms can still be seen.

Thornhill Education Center, Fragrance Garden, Joy Path (parking lot P-21): Enjoy the colorful flowers in these all-season gardens.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): A few blue woodland phlox and pink wild geraniums are still in bloom amid the grass.

Sterling Pond (parking lot P-24): There are still a few blooms of blue woodland phlox and pink wild geranium.

Schulenberg Prairie (parking lot P-25): In the Schulenberg Prairie, grasses are green and summer blooms are on the way. Prairie flowers will bloom among the grasses all summer long.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): There are scattered blue woodland phlox and pink wild geraniums.

Lake Marmo (parking lots P-27 and P-28): Great white trillium can still be seen on the south side of the lake, along with a few blue woodland phlox and pink wild geraniums.

Summer is arriving. Visit often to enjoy the cool shade of majestic trees at The Morton Arboretum!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, May 6

The fresh green of summer has taken over the landscapes of The Morton Arboretum, but the fleeting colors of spring blooms are still here to enjoy. Spring has passed quickly this year, with some plants blooming for as little as a week.

In the Arboretum’s East Woods, some late-season wildflowers are still in bloom. On the Arboretum’s West Side, a few scattered daffodils are still in flower in Daffodil Glade and Sargent’s Glade. Meanwhile, the Schulenberg Prairie is turning green with the first flowers of summer. Thanks to our team of horticulturists, the Arboretum’s gardens are always colorful no matter when you visit.

Visitor Center area, including parking lot P-1, Administration and Research Center and The Grand Garden: Both blue and white periwinkle are still in flower, along with white snowdrop anemones, white-flowering cotoneaster, Winter Beauty blood-twigged dogwood, and lavender-pink Korean lilacs. Fragrant sumac flowers are yellow and oak trees have green catkins. Tulips bloom in the flower beds. Near parking lots P-1 and P-2, look for maroon-blooming pawpaw trees and yellow-blooming buckeye trees, along with white to lavender shooting stars.

On the East Side

Northern Illinois and Midwest Collections (parking lot P-2): Trees and shrubs in bloom include pawpaw (dark maroon) and nannyberry and blackhaw viburnums (white). Ohio buckeyes have yellow blooms. Catkins, or dangling male flowers, can be seen on many kinds of oak trees.

Frost Hill and Conifer Collection (parking lot P-3): The view from Frost Hill across the river valley is beautifully green.

Crabapple Lake (parking lot P-4): The last few white and pink crabapple trees are blooming amid the new summer green of the landscape.

Buckeye Collection (parking lot P-6): Ohio buckeye trees have their large, erect, yellow-green flowers, along with a few white Carolina silverbells. Red buckeye trees have bright red flowers.

East Woods (parking lots P-8 through P-16): The spring woodland wildflower season is nearly done, but the few flowers still in bloom include white and blue violets; yellow bellwort; blue woodland phlox and wild hyacinth; white May-apples; and green and maroon Jack-in-the pulpit. Look also for maroon flowers on pawpaw trees.

Maple Collection and Beech Collection (parking lot P-14): Look for white to lavender shooting stars in bloom among the nearby prairie grasses.

Eastern North America Collection and Temperate Asia Collection (parking lot P-16 to parking lot P-18): Look for dark maroon pawpaw flowers, lavender Asian lilacs, and white blooms on American bladdernut, Carolina silverbell, and spirea.

On the West Side

Founder’s Grove (parking lot P-20): A scattering of the last white daffodils are still blooming, along with blue woodland phlox and pink wild geranium.

Thornhill Education Center, Fragrance Garden, Joy Path (parking lot P-21): Blue periwinkle blooms can be seen along the ground around this popular area. Lavender-pink Korean lilacs are blooming along with white showy cotoneaster.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): Scattered late daffodils are still blooming. Dotted in the grass are blue woodland phlox and pink wild geraniums.

Sterling Pond (parking lot P-24): A few wildflowers are still in bloom, including blue woodland phlox, pink wild geranium, yellow golden Alexanders, and lousewort.

Schulenberg Prairie (parking lot P-25): In the Schulenberg Prairie, where the grasses are green, summer blooms are opening. Prairie flowers will bloom among the grasses all summer long.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): Scattered late white daffodils are blooming, along with blue woodland phlox and pink wild geranium.

Lake Marmo (parking lots P-27 and P-28): White flowering dogwoods and great white trillium can still be seen on the south side of the lake. At the west end of the lake, skunk-cabbage flower spathes and their large leaves are still prominent, with great white trillium nearby. Follow the trail to the east to another low, wet area to find a second patch of skunk-cabbage blooms near parking lot P-29.

Godshalk Meadow (parking lot P-33): Lilacs are still in bloom near the bridge over the East Branch of the DuPage River.

Summer will be here soon. Enjoy the many shades of green to be seen along with the colorful blooms at the Arboretum!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, April 29

It is late spring at The Morton Arboretum, where the trees’ canopy is leafing out and the last of the woodland wildflowers are blooming. Still, there is an abundance of spring blooms to enjoy among the gardens, tree collections, and natural areas of The Morton Arboretum.

Visitor Center area, including parking lot P-1, Administration and Research Center and The Grand Garden: Both blue and white periwinkle are in flower. Dwarf Korean lilacs have begun to bloom in lavender-pink, along with white Japanese kerria, witch-alder, and showy cotoneaster. Redbuds and crabapple trees are in their last bloom.

On the East Side

Northern Illinois and Midwest Collections (parking lot P-2): Trees and shrubs in bloom include flowering dogwood and hawthorns (white) and pawpaw (dark maroon) and hawthorns (white). Ohio buckeyes have yellow blooms. The catkins, or dangling male flowers, are expanding on many kinds of oak trees.

Frost Hill and Conifer Collection (parking lot P-3): The view from Frost Hill across the river valley is beautifully green. A nearby Carolina silverbell has white blooms.

Crabapple Lake (parking lot P-4): The last white and pink crabapple trees are blooming, along with a few nearby white, yellow, and purple magnolias.

Buckeye Collection (parking lot P-6): Ohio buckeye trees have their large, erect, yellow-green flowers, along with white Carolina silverbells.

East Woods (parking lots P-8 through P-16): The woodland wildflower season is nearing its end. Among the blooms still to be seen are white and blue violets; yellow flowers like bellwort, celandine-poppy, and buttercups; the blues of woodland phlox; pink wild geranium; and white may-apples. In the understory, chokeberry shrubs have white flowers.

Maple Collection and Beech Collection (parking lot P-14): Look for white to lavender shooting stars in bloom among the nearby prairie grasses. Nearby in the woods are the early white blooms of nannyberry viburnums and chokeberries.

Eastern North America Collection and Temperate Asia Collection (parking lot P-16 to parking lot P-18): Look for dark maroon pawpaw flowers, lavender Asian lilacs, and white blooms on American bladdernut, Carolina silverbell, spirea, and flowering dogwood.

On the West Side

Europe Collection and Ornamental Flowering Trees Collection (parking lot P-19): Blooms linger on a few late yellow magnolias and white to lavender crabapple trees.

Founder’s Grove (parking lot P-20): A scattering of the last white daffodils are still blooming, along with blue woodland phlox and pink wild geranium.

Thornhill Education Center, Fragrance Garden, Joy Path (parking lot P-21): Blue periwinkle blooms can be seen along the ground around this popular area. White and lavender Merril magnolias are still in flower. Lavender-pink Korean lilacs are blooming along with white showy cotoneaster and witch-alder.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): Scattered late daffodils are still blooming. Scattered in the grass among the daffodils are blue woodland phlox and pink wild geraniums.

Sterling Pond (parking lot P-24): A few yellow celandine-poppies are still in bloom, along with blue woodland phlox, pink wild geranium, yellow golden Alexanders and lousewort, and white chokeberry.

Schulenberg Prairie (parking lot P-25): Grasses in the prairie and savanna are blooming.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): Scattered late white daffodils are blooming, along with blue woodland phlox and pink wild geranium.

Lake Marmo (parking lot P-27): Lavender-pink redbuds are still in bloom along the south side of the lake, along with scattered late white daffodils. At the west end of the lake, skunk-cabbage flower spathes and their large leaves are prominent, with great white trillium and flowering dogwood nearby. Follow the trail to the east to another low, wet area to find a second patch of skunk-cabbage blooms near parking lot P-29.

Spring bloom is nearing its end, which means summer is on the way!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, April 22

There is an abundance of spring blooms to enjoy among the gardens, tree collections, and natural areas of The Morton Arboretum. You’ll be greeted by tulips, daffodils, and redbuds, and you’ll discover many more blooms throughout the grounds. Some plants’ flowers have not lasted long because of recent weather, including warm spells followed by cold and even frosts, but late daffodils and many trees are now blooming. There are still plenty of flowers bloom to look forward to during a visit to the Arboretum.

Visitor Center area, including parking lot P-1, Administration and Research Center and The Grand Garden: Crabapple trees and lilacs are blooming in The Grand Garden. Both blue and white periwinkle are in flower and tulips fill the flower beds. Virginia bluebells are in flower in the Ground Cover Garden and elsewhere. Nearby, enjoy flowering quince shrubs in a variety of colors: Jet Trail (white), Cameo (salmon-pink), Toyo-Nishiki (light pink), and Texas Scarlet (red). Trees and shrubs in bloom include lavender-pink redbuds, very fragrant white-flowering winter honeysuckle, and the first flowering crabapple trees. Adding fragrance to the air are Korean-spice, Judd, and Manchurian viburnums.

Ground Cover Garden (parking lot P-1): In this tranquil spot you will see blooms of both blue and white periwinkle, hellebores in colors from cream to dark purple, fragrant viburnum and Judd viburnum.

On the East Side

Northern Illinois and Midwest Collections (parking lot P-2): Trees and shrubs in bloom include pearlbush (white), redbud (lavender-pink), sassafras (light green), pawpaw (dark maroon), and hawthorns (white). Sugar maples have pale green flowers, and the catkins, or dangling male flowers, are expanding on many kinds of oak trees.

Frost Hill and Conifer Collection (parking lot P-3): The view from Frost Hill across the river valley is greening up nicely. Dark lavender magnolias are in bloom.

Crabapple Lake (parking lot P-4): White and pink crabapple trees have begun their splendid flower show.

Buckeye Collection (parking lot P-6): Ohio buckeye trees have their large, erect, yellow-green flowers.

East Woods (parking lots P-8 through P-16): The blooms of sugar maples are light green overhead.Late-spring wildflowers in bloom includewhite trout-lily, yellow trout-lily, yellow bellwort, celandine-poppy. and buttercups, and blue woodland phlox. Wild geraniums and mayapples will bloom soon.

Beech Collection (parking lot P-14): Beech trees are beginning to bloom and leaf out. Nearby in the woods are the early white blooms of nannyberry viburnums.

Eastern North America Collection and Temperate Asia Collection (parking lot P-16 to parking lot P-18): Look for lavender-pink blooms on redbuds, dark maroon pawpaw flowers, white blooms on American bladdernut, and the first white-flowering dogwoods.

On the West Side

Europe Collection and Ornamental Flowering Trees Collection (parking lot P-19): Yellow magnolias are in full bloom on the West Side past the East Branch of the DuPage River, and crabapples have begun blooming among the ornamental flowering trees.

Founder’s Grove (parking lot P-20): Late white daffodils are still blooming along with lavender-pink redbud trees.

Thornhill Education Center, Fragrance Garden, Joy Path (parking lot P-21): Blue periwinkle blooms can be seen along the ground around this popular area, along with Virginia bluebells. White and lavender Merril magnolias are in flower, along with rebuds and white serviceberries. Winter honeysuckle is blooming with a wonderful fragrance.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): Late daffodils are blooming. Scattered in the grass among the daffodils are white trout-lily and blue woodland phlox.

Sterling Pond (parking lot P-24): Among the blooming wildflowers are white trout-lily, Virginia bluebells, and yellow celandine-poppy.

Schulenberg Prairie (parking lot P-25): Grasses in the prairie and savanna are greening up.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): Late white daffodils are blooming, along with white trout-lily and blue woodland phlox.

Lake Marmo (parking lot P-27): Lavender-pink redbuds are in bloom along the south side of the lake, along with the green catkins of ironwood trees. Below the bridge near parking lot P-28, skunk-cabbage flower spathes with their large leaves are prominent. Follow the trail to the east to another low, wet area to find a second patch of skunk-cabbage blooms near parking lot P-29.

Recent weather has been hard on some flowers, but there are still plenty of blooms to see amid the green unfolding leaves. Come out and enjoy all that spring offers at The Morton Arboretum!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, April 15

Now is the time to get out and enjoy a walk through your favorite area of The Morton Arboretum, where recent warm and wet weather has encouraged an abundance of spring bloom. There is lots to see now, from the tulips and pansies in the gardens to the blooming magnolia, serviceberry, pear, and cherry trees in the living collections. Don’t forget the spring wildflowers that are coming into their own in the woodland areas.

Visitor Center area, including parking lot P-1, Administration and Research Center and The Grand Garden: Both blue and white periwinkle are in flower, along with yellow daffodils. Among the many daffodil varieties are Narcissus ‘Yellow Cheerfulness’ (pale yellow), ‘Ice Follies’ (white), ‘Marieke’ (yellow), ‘Fortissimo’ (yellow and range), ‘February Gold’ (yellow), and ‘Pimpernel’ (light yellow and orange). In the May T. Watts Reading Garden of the Sterling Morton Library, a Sargent’s cherry tree has pink blooms. Nearby you will see white-blooming serviceberries, along with flowering quince shrubs in a variety of colors: Jet Trail (white), Cameo (salmon-pink), Toyo-Nishiki (light pink), and Texas Scarlet (red). Winter honeysuckle, very fragrant, has white flowers. Trees in bloom include lavender-pink redbuds, pink flowering almond and white Ussurian pear, while overhead sugar maples have pale green flowers. In garden beds, look for blue periwinkle and Virginia bluebells, as well as seasonal plantings of tulips.

Ground Cover Garden (parking lot P-1): In this tranquil spot you will see blooms of both blue and white periwinkle, hellebores in colors from cream to dark purple, Virginia bluebells, and tiny blooms of barrenwort. Fragrant viburnum shrubs have pink and white flowers.

On the East Side

Northern Illinois and Midwest Collections (parking lot P-2): Yellow and orange-red Tahiti daffodils are blooming along with white serviceberry shrubs.Trees that are starting to bloom include lavender-pink redbuds, pale green sugar maples, and light green sassafras. Watch for the dark maroon flowers of pawpaw trees, coming soon.

Frost Hill and Conifer Collection (parking lot P-3): The view from Frost Hill across the river valley is greening up nicely. Dark pink saucer magnolia and pale yellow Magnolia ‘Elizabeth’ are blooming. Pink-blooming cherry trees can be seen along the south side of the road.

Rose Family Collection and Crabapple Lake (parking lot P-4): White pear trees are in bloom, while crabapples are on the verge of flowering.

Magnolia Collection (parking lot P-5): There are still scattered white flowers in the Magnolia Collection, along with yellow-blooming Magnolia ‘Elizabeth’. Drifts of daffodils in bloom nearby include Narcissus ‘Las Vegas’ (yellow and white), ‘Tahiti’ (yellow and orange double), ‘Stainless’ (white), ‘Mount Hood’ (white), ‘Flower Parade’ (white double), ‘Delibes’ (yellow and orange), and ‘Carlton (yellow).

Crowley Marsh, Bur Reed Marsh, Spikerush Marsh (parking lot P-6): Chorus frogs are in full song! You can hear their choir as you walk or drive past the marshes.

Buckeye Collection (parking lot P-6): Leaves and flowers are starting to emerge on trees in the collection.

East Woods (parking lots P-8 through P-16): The woods are carpeted in green, mostly false-mermaid (Floerkea proserpinacoides). The wildflower season is really getting started, with spring beauty (white to pink), toothwort (white), white trout-lily, yellow trout-lily, Dutchman’s breeches (white), Virginia bluebells (blue), and violets (blue and white forms). Just starting to bloom are white rue-anemone and false rue-anemone. Wild plum has white flowers. Up in the treetops Sugar Maples are in full green bloom.

Maple Collection (parking lot P-14): This area has a nice display of daffodils, ranging from yellow and white of the Pipit variety to the intense orange and yellow Jetfire and Quail varieties.

Eastern North America Collection and Temperate Asia Collection (parking lot P-16 to parking lot P-18): Brackenhurst and Barrett Browning daffodils are in full bloom near parking lot P-16. Chinese willow-leaved magnolias and Northern Japanese magnolias are showing large, white blooms near parking lot P-17. Flowering cherry trees are pink. Shrubs in bloom include white spirea, lavender Korean rhododendrons, and white and pink fragrant viburnum.

On the West Side

Europe Collection and Ornamental Flowering Trees Collection (parking lot P-19): White, lavender, and yellow magnolias are in full bloom on the West Side past the East Branch of the DuPage River. Near parking lot P-17, look for white Chinese willow-leaved magnolia, Asian pear trees and pink cherry trees. Crabapples will bloom soon. Daffodils in bloom include Narcissus ‘Delnashaugh’ (white and pink) and ‘Mount Hood’ (white).

Founder’s Grove (parking lot P-20): Naturalized daffodils are in full bloom, and redbud trees are beginning to flower.

Thornhill Education Center, Fragrance Garden, Joy Path (parking lot P-21): Blue periwinkle blooms can be seen on the ground around this popular area. White-blooming magnolias include star magnolia and the varieties Royal Star, Wada’s Memory, Kobus, and Merrill. Winter honeysuckle is blooming with a wonderful fragrance. Also in bloom nearby are Virginia bluebells, dark blue grape hyacinths, and white pachysandra, along with white serviceberry shrubs and lavender-pink redbud trees.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): This grand sweep of naturalized daffodils is nearing full bloom. Scattered in the grass among the daffodils are wildflowers including white trout-lily, white to pink spring beauty, and white toothwort.

Sterling Pond (parking lot P-24): Among the blooming wildflowers are white trout-lily, spring beauty (white to pink), and toothwort (white). The nearby Schulenberg Prairie and savanna are greening up.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): Naturalized daffodils are blooming, along with wildflowers that include white trout-lily, spring beauty (white to pink), and toothwort (white).

Lake Marmo (parking lot P-27): Striking bright green needles can be seen on larches. Redbud trees are beginning to bloom along the south side of the lake, along with the green catkins of ironwood trees. Below the bridge near parking lot P-28, skunk-cabbage flower spathes with their large leaves are prominent. Follow the trail to the east to another low, wet area to find a second patch of skunk-cabbage blooms near parking lot P-29.

It’s time to get out and enjoy the full experience of spring bloom at the Arboretum!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, April 8

Cold and warm temperature fluctuations during the past few weeks have not slowed the progression of spring flowers in the plant collections, gardens, and woodlands of The Morton Arboretum. While the recent cold air has nipped some of the early-blooming magnolias, other blooms are coming along nicely.

Visitor Center and parking lot P-1: Yellow forsythia varieties including Courtasol, Meadowlark, Northern Gold, and Sunrise are showing off their last blooms. In full bloom, however, are hellebores, including the Pink Lady and Blue Lady varieties. Periwinkle and Siberian squill show dark blue flowers along the ground, while up above are the large white flowers of Ballerina magnolia.

Ground Cover Garden (parking lot P-1): Blue periwinkle and Siberian squill can be seen near the hellebores, which bloom in cream to dark purple colors. Fragrant viburnums bring pink and white flowers and a wonderful scent to the garden. Yellow forsythias are nearing the end of their blooming season.

Near the Administration and Research Center and The Grand Garden (parking lot P-1): Blue Siberian squill and periwinkle are in full bloom, along with daffodil varieties including Narcissus ‘Yellow Cheerfulness’ (pale yellow), ‘Ice Follies’ (white), ‘Marieke’ (yellow), ‘Fortissimo’ (yellow and orange), ‘February Gold’ (yellow), and ‘Pimpernel’ (light yellow and orange). The pink flowers of a Sargent’s cherry tree are blooming in the May T. Watts Reading Garden near the Sterling Morton Library.

On the East Side

Northern Illinois and Midwest Collections (parking lot P-2): Leatherwood shrubs and Tahiti daffodils are starting to bloom in yellow.

Frost Hill and Conifer Collection (parking lot P-3): The view from Frost Hill overlooking the river valley and the Meadow Lake Trail is beginning to green up as leaves emerge. White and pink magnolia petals cover the path from the lake to the always-green Conifer Collection.

Rose Family Collection and Crabapple Lake (parking lot P-4): White flowers are beginning to open on pear trees.

Magnolia Collection (parking lot P-5): White-flowering magnolias are in full bloom! They are among many kinds of magnolias from around the world that bloom in this collection. Nearby, scattered flowers are opening in the drifts of daffodils along the roadside near Crabapple Lake.

Crowley Marsh, Bur Reed Marsh, Spikerush Marsh (parking lot P-6): Chorus frogs are in full song! You can hear their calls as you walk or drive past the marshes.

Buckeye Collection (parking lot P-6): Ohio buckeye leaves are starting to emerge on trees in the Buckeye Collection. Flower buds will soon follow.

Gateway to Tree Science (parking lot P-8): An anise magnolia is starting to bloom with large white flowers.

East Woods (parking lots P-8 through P-16): Plants along the ground are starting to green up in the Arboretum’s East Woods, especially in areas where prescribed burns have recently been conducted. Look for the blooms of the earliest woodland wildflowers, bloodroot (white) and sharp-lobed hepatica (white to lavender). Just starting to flower this week are spring beauty (white to pink) and cutleaf toothwort (white). What looks like patches and mats of tangled green stems on the ground is actually one of our most common, though inconspicuous, spring bloomers: false mermaid.

Maple Collection (parking lot P-14): This area has a nice display of dark blue Siberian squill and daffodils, ranging from the yellow and white of the Pipit variety to the intense orange and yellow Jetfire and Quail varieties.

Eastern North America Collection and Temperate Asia Collection (parking lot P-16 to parking lot P-18): Brackenhurst and Barrett Browning daffodils are starting to bloom near parking lot P-16. Chinese willow-leaved magnolias and Northern Japanese magnolias are showing large white blooms near parking lot P-17. Lavender blooms can be seen on Korean rhododendrons. Nearby yellow forsythias and fragrant viburnums are also in full bloom.

On the West Side

Europe Collection and Ornamental Flowering Trees Collection (parking lot P-19): White and lavender magnolias are in full bloom on the West Side beyond the bridge over the East Branch of the DuPage River. On the hill near the road, pear trees are just starting to show white flower buds and a few early blooms. Daffodils, including white and pink Delnashaugh and bold white Mount Hood, are beginning to bloom near the edge of the road up the hill near Thornhill Education Center.

Founder’s Grove (parking lot P-20): Naturalized daffodils are in full bloom, and pink and lavender buds are starting to show on redbud trees.

Thornhill Education Center, Fragrance Garden, Joy Path (parking lot P-21): Blue Siberian squill and periwinkle blooms can be seen on the ground around this popular area. Many white-blooming varieties of magnolia can be found here, including Royal Star, Wada’s Memory, Kobus, Merrill, and star magnolia. Winter honeysuckle is just starting to bloom and release its wonderful fragrance.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): True to its name, Daffodil Glade is erupting with the yellow blooms of early spring. Complementing the many shades of yellow are the vivid blue star-shaped blooms of Siberian squill.

Sterling Pond (parking lot P-24): White-blooming bloodroot is scattered throughout the area around the pond.

Schulenberg Prairie (parking lot P-25): Where prescribed burns have been carried out by natural areas crews for the health of the prairie, new green growth is just starting to show.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): Blue Siberian squill is in full bloom with yellow daffodils starting to bloom.

Lake Marmo (parking lot P-27): Bright green needles are emerging on European and Olga Bay larches. Near the bridge, skunk-cabbage flower spathes are up, blooming their curious maroon flowers. At the edge of the water, redbud trees are showing dark lavender flower buds. Follow the trail to the east to another low, wet area to find a second patch of skunk-cabbage blooms.

Godshalk Meadow (parking lot P-33): Golden Bells forsythia is finishing its bloom season. Ussurian pears and star magnolia have white flowers.

This is just the opening of our spring blooming season. Much more is to come as the weather warms!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, April 1

Warm weather and rain have begun to work magic. Early spring blooms are showing up all across The Morton Arboretum, in the living tree collections, gardens, and woodlands.

Magnolia trees are blooming, chorus frogs are singing, and daffodils are beginning to bloom.

On the East Side

Visitor Center, Ground Cover Garden, Administration and Research Center, Sterling Morton Library (parking lot P-1): Near the Visitor Center and parking lot P-1, you’ll see yellow blooms on several varieties of forsythia shrubs. In the garden beds, look for hellebores including Lenten-rose and Pink Lady and Blue Lady varieties, as well as the first flowers of periwinkle and white bloodroot. A white Ballerina Loebner’s magnolia is opening its flowers.

Near the Research and Administration Center, several varieties of daffodils are just starting to bloom, along with blue Siberian squill. A Sargent’s cherry tree in the May T. Watts Reading Garden of the Sterling Morton Library has pink flowers.

In the Ground Cover Garden, early blooms include blue periwinkle, dark blue Siberian squill, hellebores in various colors from cream to dark purple, yellow forsythia, and pink fragrant viburnum.

Frost Hill (parking lot P-3): The view across the valley is beginning to green up. Magnolias, both white and pink, are starting to bloom along the path to the Conifer Collection.

Crabapple Lake (parking lot P-4): On the trees in the Crabapple Collection, flower buds are starting to swell and show a bit of color.

Magnolia Collection (parking lot P-5): Early white-flowering magnolias are in full bloom. Drifts of daffodils are just beginning to flower.

Crowley Marsh, Bur Reed Marsh, Spikerush Marsh (parking lot P-6): Chorus frogs will serenade you as you walk or drive past.

Gateway to Tree Science (parking lot P-8): A white anise magnolia is starting to bloom.

East Woods (parking lots P-8 through P-14): In the woods, most wildflowers are just starting to push up their leaves. This is most apparent where prescribed burns have taken place. A few wildflowers are in full bloom, including bloodroot (with white flowers) and sharp-lobed hepatica (white to lavender flowers). Leaves of Virginia bluebells are 6-8 inches, with a few small flower buds showing.

Temperate Asia Collection and Eastern North America Collection (parking lots P-16 to P-17): Daffodils beginning to bloom near parking lot P-16 include ‘Brackenhurst’ and ‘Barrett Browning’ varieties. Near parking lot P-17, a white Chinese willow-leaved magnolia is in bloom, along with yellow forsythias and white and pink fragrant viburnum.

On the West Side

Ornamental Flowering Tree Collection (parking lot P-19): White and lavender magnolias are beginning to bloom. Buds are swelling on crabapple trees. Willow trees are blooming in the nearby Europe Collection. Chorus frogs are singing in the nearby wetland.

Founder’s Grove (parking lot P-20): Yellow daffodils are blooming.

Thornhill Education Center, Fragrance Garden, and Joy Path (parking lot P-21): Look for blooms of Siberian squill (dark blue), Gold-line Korean forsythia (yellow), and Bowles periwinkle (blue). Among the magnolia trees in bloom are the white-flowered cultivars Royal Star, Wada’s Memory, and Kobus, along with star magnolia. Blooms of Merrill magnolia are white and lavender. Winter honeysuckle is just beginning to open its fragrant white flowers.

Following the West Side Main Route

Daffodil Glade (parking lots P-22 and P-23): Dark blue Siberian squill is in full bloom, and the first scattered yellow daffodils are opening.

Sterling Pond (parking lot P-24): Scattered white bloodroot plants are in full bloom.

Following the West Side Alternate Route

Sargent’s Glade (parking lot P-26): Dark blue Siberian squill is in bloom, along with white, lavender, and purple crocuses. Yellow daffodils are just starting to flower.

Lake Marmo (parking lot P-27): New needles are bright green on larch trees.

Lake Marmo spillway (parking lot P-28): Skunk-cabbage flower spathes are up in the unusual large maroon blooms. More skunk-cabbage can be found near parking lot P-29.

Godshalk Meadow (parking lot P-33): Yellow Golden Bells forsythia is in full bloom, with nearby Ussurian pear trees showing white buds. Near the Route 53 underpass, star magnolia trees have white flowers.

This is just the very beginning of our spring blooming season. There will be much more to come as the weather warms!

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.

Spring bloom as of Wednesday, March 25

Spring flowers are beginning to open at The Morton Arboretum. Near the Visitor Center, keep an eye out for white snowdrops, blue scilla, and yellow forsythia. Spring-blooming witch-hazel trees are putting on a great show of reds and yellows in the nearby Ground Cover Garden, as well as in Witch-Hazel Dell on the West Side (parking lot P-27).

The witch-hazels’ blooms are easy to see because they are small trees. Other tree flowers may be harder to spot because the trees are larger and because the flowers tend to be small and inconspicuous. Around the Arboretum, look for the subtle flower catkins high up in maple trees such as red maple, silver maple, and Freeman’s maple. Other trees in bloom include American elm, quaking aspen, big-toothed aspen, and Farges’ hazel.

Look for yellow blooms on Japanese cornel dogwood and cornelian-cherry dogwood in locations around the Arboretum, including the cornelian-cherry dogwood hedge that surrounds The Grand Garden (parking lot P-1).

In the Ground Cover Garden, hellebores (Lenten-rose and Christmas-rose) are in full bloom. On the West Side, at the Thornhill Education Center (parking lot P-21), there are snowdrops in front of the building. Yellow winter aconite is in flower in the nearby Fragrance Garden.

Skunk-cabbage is blooming west of Lake Marmo and south of the Marmo dam along Willoway Brook (near parking lot P-29).

The sounds as well as sights of spring have arrived at the Arboretum. Listen for the spring symphony of chorus frogs, redwing blackbirds, robins, and cardinals. Shake off the winter blues and start breathing in the springtime air with regular walks through the Arboretum’s changing landscapes.

About the Spring Bloom Report

The Spring Bloom Report is written by The Morton Arboretum’s manager of plant records, Ed Hedborn. It is typically published on Wednesdays throughout the spring to help guests plan their weekend visits. The Arboretum also publishes a weekly Fall Color Report in fall.