Common Name: yellow archangel Zone: 4 to 8 Plant Type: Herbaceous perennial Family: Lamiaceae Missouri Native: No Native Range: None Height: 1 to 2 feet Spread: 1.5 to 2 feet Bloom Time: June Bloom Color: Yellow Sun: Part shade to full shade Water: Dry to medium Maintenance: Low General Culture: Easily grown in average, dry to medium, well-drained soils in part shade to full shade. To cover large areas, space plants 12" apart. Noteworthy Characteristics: This yellow archangel cultivar is a vigorous, somewhat-clumping, stoloniferous perennial which typically grows 6-15" high (flower spikes to 24" high) and spreads somewhat rapidly by creeping stems. Oval, serrate leaves marbled with silver have distinctively green midribs and margins. Tiered whorls of small, hooded, yellow flowers (typical mint family shape) appear in erect, loose clusters rising 12-18" high from the upper leaf axils in late spring to early summer. Formerly included in the genus Lamiastrum because of its yellow flowers. Problems: No serious insect or disease problems. Slugs and snails can be a problems. Can be invasive. Uses: Excellent in groups or massed as a ground cover for shaded areas under trees and shrubs where few plants will grow well. Woodland or shade gardens. Probably too invasive for shaded areas of perennial borders.