Lamiastrum galeobdolon is known for its dense, silver-green mounding or mat-forming foliage and yellow, spring flowers. Yellow Archangel is used as a groundcover or perennial in the shady landscape. It is an example of a range of groundcovers that add color to shady areas where lawn will not grow.
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F E A T U R E S |
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Form
-perennial groundcover ('Variegata') or herbaceous perennial ('Herman's Pride'), depending upon cultivar
-maturing at about 1' tall x 1.5' wide ('Variegata') or 1' tall x 1' wide ('Herman's Pride')
-either a procumbent mat ('Variegata') or radiating clump ('Herman's Pride') growth habit, depending upon cultivar |
Foliage
-medium to dark green (cultivars are silver-variegated), opposite, ovate, with an acute tip
margins may be dentate to serrate ('Herman's Pride') or crenate ('Variegatum')
-basal leaves have long petioles, while leaves on the upper stems are sessile
-emerges in Mar. and grows rapidly in Apr. and May
-entire plant slowly dies back to the ground during winter (often evergreen in southern climates) |
Flowers
-yellow, with a "hooded" upper petal and "lipped" lower petal that are characteristic of the Mint family
flowering in Apr. and May and sporadically thereafter
-numerous clusters of small flowers occur at the stem nodes and also at the stem termini |
Fruit
-brown and ornamentally inconspicuous |
Twig
-stems are square when viewed in cross-section, somewhat pubescent, and green |
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Trunk
-not applicable |
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C U L T
U R E
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Culture
-partial sun to full shade
-needs a moist, well-drained, rich soil in partial shade for optimum performance
-Mint Family, with no disease problems, but slug and snail pest problems affect the foliage on occasion
-propagated by crown division or rooted stem cuttings
-moderately available in containers or flats |
Hardiness
-zones 5 to 8
Origin
-native to Europe
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U S A G E |
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Assets
-dense silver-variegated foliage, found as a mounding to spreading groundcover or clump perennial, depending upon cultivar
-yellow spring flowers
Liabilities
-the groundcover form may become slowly invasive by stolons or rambling stems
-the groundcover form attracts leaf litter in late autumn and winter
-slugs and snails may be cosmetic pests to the foliage |
Function
-edging, border, foundation, or facer groundcover ('Variegata'), or clump perennial ('Herman's Pride'), used especially in shaded areas
Texture
-medium texture
-thick density |
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S E L
E C T I 0 N S |
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Varieties
and Cultivars
- Search
OSU PlantFacts for additional plants in this species
Alternates
-other groundcovers for shady sites, especially those known for their variegated or semi-evergreen foliage (Aegopodium podagraria 'Variegatum', Galium odoratum, Lamium maculatum, Liriope muscari, Pachysandra terminalis, Vinca minor 'Ralph Shugert', etc.) or noted for their yellow spring flowers (Ranunculus repens, Waldsteinia fragarioides, etc.)
-partial shade perennials noted for their variegated foliage (Heuchera cultivars, Hosta cultivars, Pulmonaria saccharata, etc.) |