Content Detail

Yellow archangel is a ground cover with bright yellow flowers and green foliage marked with silver in some cultivars. It can be a very aggressive grower and so should be sited carefully.

  • Family (English) Mint
  • Family (botanic) Lamiaceae (syn. Labiatae)
  • Tree or plant type Ground cover, Perennial
  • Native locale Non-native
  • Size range Small plant (6-12 inches)
  • Light exposure Full shade (4 hrs or less of light daily), Full sun (6 hrs direct light daily), Partial sun / shade (4-6 hrs light daily)
  • Hardiness zones Zone 4, Zone 5 (Chicago), Zone 6, Zone 7, Zone 8, Zone 9
  • Soil preference Moist, well-drained soil
  • Tolerances Alkaline soil, Clay soil
  • Season of interest early fall, early summer, late spring, late summer, mid spring, midsummer
  • Flower color and fragrance Yellow
  • Shape or form Creeping, Mounded
  • Growth rate Fast

Size and Method of spreading: 

Yellow archangel can grow up to 1 1/2 feet high and can spread rapidly.  It is a trailing-rooting ground cover.  Trailing-rooting ground covers have trailing stems that spread out from a central root system.  These stems spread out horizontally over the ground and can root where they come in contact with the soil.  New shoots will be formed at the point where rooting occurs.

Native geographic location and habitat: 

Native to Europe and Iran.

Leaf description: 

The opposite leaves are somewhat ovate to heart-shaped with coarsely toothed margins.  Leaves of the species may be dark green or green marked with silver.  Commonly sold cultivars have foliage distinctly marked with silver.

Flower description: 

The irregular, yellow flowers are held upright on stalks.  They are produced in late spring and early summer.

Fruit description: 

Fruit are small nutlets and not ornamentally important.

Plant care:

This ground cover is adaptable to a wide range of conditions.  It does best in shade with good moisture.  It can tolerate full sun as long as the soil moisture is adequate.  Yellow archangel does not tolerate dry soils.

List of pests, diseases, and tolerances: 

No common serious problems.

Florence yellow archangel (Lamiastrum galeobdolon ‘Florentinum’):  

A taller cultivar, this plant reaches up to 20 inches high in flower. It has variegated foliage.

Herman’s Pride yellow archangel (Lamiastrum galeobdolon ‘Herman’s Pride’):  

A shorter cultivar (12 inches high); silvery foliage with green veins.

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