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Botanical name: Phlomis fruticosa
An interesting clump forming perennial with dense whorls of bright yellow flowers that rise tall on the stems; silvery gray-green woolly leaves are interesting all season; woody and evergreen in zone 8 to 9, but restarts from the ground in colder climates.
| Hardiness zone | 6b |
|---|---|
| Flower color | yellow |
| Foliage type | evergreen |
| Plant form | upright spreading |
| Mature height | 3 feet (4 feet with the flowers) |
| Spread | 3 feet |
| Light requirements | full sun |
| Moisture requirements | dry to average |
| Plant origin | import |
Jerusalem Sage features bold spikes of yellow hooded flowers rising above the foliage from late spring to early summer. The flowers are excellent for cutting. Its serrated narrow leaves remain grayish green in color throughout the year. The fruit is not ornamentally significant.
Jerusalem Sage is an herbaceous evergreen perennial with an upright spreading habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.
This is a relatively low maintenance plant, and is best cut back to the ground in late winter before active growth resumes. Deer don't particularly care for this plant and will usually leave it alone in favor of tastier treats. It has no significant negative characteristics.
Jerusalem Sage is recommended for the following landscape applications;
Mass Planting, General Garden Use
Jerusalem Sage will grow to be about 3 feet tall at maturity extending to 4 feet tall with the flowers, with a spread of 3 feet. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.
This plant should only be grown in full sunlight. It prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This species is not originally from North America.
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