Phlomis lychnitis
Phlomis lychnitis · Lamiaceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around phlomis lychnitis and prepare for winter.
ID card
- Foliage
- Evergreen, grey-green, woolly texture
- Flowering
- Summer (June to August), yellow flowers in spikes
- Adult size
- 80 to 120 cm tall, 80 to 100 cm wide
- Growth
- Moderate
- Hardiness
- Down to -10 °C (zones 8-9)
- Origin
- Mediterranean region, Mediterranean basin
- Soil type
- Well-drained, chalky, poor to moderately fertile
Care
Light exposure
Plant this phlomis in full sun to encourage abundant flowering and dense foliage. It tolerates heat well, and sheltered locations away from wind are preferable. Even in Mediterranean climates, slight afternoon shade won't harm it.
Watering
Water regularly during the first two years to establish a robust root system. Once established, this plant is very drought-tolerant and only needs occasional watering during prolonged hot periods. Let the soil dry out between waterings.
Soil and drainage
Phlomis lychnitis dislikes waterlogged conditions; ensure well-drained soil. Enrich the soil with gravel or sand if your ground is heavy or clay-based. Poor, chalky soil suits it perfectly.
Pruning and shape
Prune lightly after flowering to maintain a compact, bushy form. Remove dead or damaged stems in spring. Hard pruning every 3 to 4 years can rejuvenate the plant if it becomes too woody.
Fertilizer
This robust plant doesn't require regular fertilizer. A minimal application in spring (balanced formula) is sufficient. In naturally poor soil, a light boost in late winter can stimulate growth, but it's not essential.
Diseases and pests
Very resistant in optimal conditions, phlomis mainly dislikes excessive moisture which can cause root rot. Watch for spider mites in very hot, dry climates. Good air circulation and adequate drainage prevent most problems.
Did you know?
The name 'Phlomis' comes from ancient Greek 'phlox' meaning 'flame', referring to the flamboyant appearance of its yellow flower spikes. In the Middle Ages, the woolly leaves of this plant, also called 'Jerusalem Sage' in English, were used as wicks for oil lamps, hence its specific name 'lychnitis' derived from the Greek 'lychnos' (lamp).
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
Add this plant to my garden →Plants from the same family
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- LavenderLavandula angustifolia
- RosemarySalvia rosmarinus
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- SageSalvia officinalis
- BugleAjuga reptans
Tips generated and checked by Viridia — adapt them to your local climate.