Content Detail

CRIMSON SPIRE™ oak is a hybrid between English oak and White oak. It was selected for a narrow form (15 feet wide) and good red fall color. It is tolerant of a wide range of conditions.

  • Family (English) Beech
  • Family (botanic) Fagaceae
  • Planting site City parkway, Residential and parks, Restricted sites, Wide median
  • Tree or plant type Tree
  • Foliage Deciduous (seasonally loses leaves)
  • Native locale Non-native
  • Size range Large tree (more than 40 feet)
  • Mature height >40 feet
  • Mature width 10-20 feet
  • Light exposure Full sun (6 hrs direct light daily)
  • Hardiness zones Zone 4, Zone 5 (Chicago), Zone 6, Zone 7
  • Soil preference Moist, well-drained soil
  • Tolerances Alkaline soil, Dry sites, Occasional drought
  • Season of interest mid fall, late fall
  • Flower color and fragrance Inconspicuous
  • Shape or form Columnar
  • Growth rate Fast
  • Transplants well Yes
  • Planting considerations Messy fruit/plant parts
  • Wildlife Migrant birds, Small mammals
  • Has cultivars Yes

Size and form:

The columnar mature height is more than 40 feet with mature width is 10 to 20 feet.

Native geographic location and habitat:

This is of hybrid origin.

Bark color and texture:

Bark is dark brown and furrowed.

Leaf or needle arrangement, size, shape, and texture:

The dark green alternate, lobed leaves change to red in fall.

Flower arrangement, shape, and size:

Flowers are not ornamentally important. Drooping, male catkins appear in April.  Female flowers are inconspicuous tiny spikes in the axils of new leaves.

Fruit, cone, nut, and seed descriptions:

The one inch long, elongated nut is enclosed with a warty cap which is about a quarter of the nut. Acorns ripen in fall and can be considered a litter problem, especially near sidewalks and patios.

Plant care:

CRIMSON SPIRE™ oak is more tolerant of wet sites than its white oak parent, but well drained sites are best. It is intolerant of salt. Prune oaks in the dormant season to avoid attracting beetles that may carry oak wilt.  

List of pests, diseases and tolerances:

Oak wilt, anthracnose, two-lined chestnut borer are possible problems. It is resistant to powdery mildew.

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