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| 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 |
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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.
The information on this page is based on research conducted in our nursery library and from online sources as well as from observations made of this plant as it grows in our nursery, in the nursery's garden and in other gardens that we have observed it in. We also will incorporate comments received from others and always appreciate getting feedback of any kind from those who have additional information, particularly if this information is contrary to what we have written or includes additional cultural tips that might aid others in growing Phlomis viscosa.
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