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Products > Phlomis viscosa
Phlomis viscosa - Viscid Jerusalem Sage
Image of Phlomis viscosa
Habit and Cultural Information
Category: Shrub
Family: Lamiaceae (Labiatae) (Mints)
Origin: Middle East
Evergreen: Yes
Flower Color: Yellow
Bloomtime: Spring/Summer
Synonyms: [Phlomis ferruginea]
Height: 2-3 feet
Width: 2-3 feet
Exposure: Full Sun
Summer Dry: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 20-25 F
Phlomis viscosa (Viscid Jerusalem Sage) - An evergreen shrub 3 to 5 feet tall with ovate 2 to 3 inch long woolly and wrinkled yellow-green leaves that are lighter on the underside. From late spring to early summer 1/2 inch long yellow flowers in many-flowered wooly clusters (whorls) bloom at the branch tips. Plant in full sun to light shade and irrigate occasionally if at all. Seem hardy to the mid 20s and likely less. A tough and decorative drought tolerant plant. The name for the genus dates back to the first century AD from the Greek physician Dioscorides use of the word to describe some plants in the genus and it thought to originate from the Greek word meaning "flame" because the leaves of some species were used for lamp wicks. The specific epithet "viscosa" means viscid or sticky but this plant does not seem any more so than many other of the Phlomis. This plant is native to rocky slopes from 1,000 to 4,700 feet in Lebanon, Syria, Palestine and Turkey. We received this plant from Carol Bornstein, horticulturist at the Santa Barbara Botanic Garden. 

This information about Phlomis viscosa displayed is based on research conducted in our horticultural library and from reliable online resources. We also will relate observations made about it as it grows in our nursery gardens and other gardens we have visited, as well how the crops have performed in containers in our nursery field. We will also incorporate comments that we receive from others and we welcome hearing from anyone with additional information, particularly if they can share any cultural information that would aid others in growing it.