About
Phlomis grandiflora, the large-flowered Jerusalem sage, is an evergreen, woody perennial with rough-textured, heart-shaped, dark-green leaves that are hairy and silvery-green beneath. Whorls of large, golden-yellow, hooded flowers are produced throughout summer. An ornamental and architectural plant for a sunny, well-drained border.
About the genus
Phlomis can be herbaceous perennials or evergreen shrubs with sage-like, often grey-felted leaves and whorls of tubular, hooded flowers in yellow, pink or white over a long period in summer. Reliable, drought-tolerant plants for sunny, well-drained borders.
Growing conditions
SunlightFull sun
Soil typeChalk, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectSouth-facing, West-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH5
Plant details
Plant typeShrubs
HabitBushy
FoliageEvergreen
Height1.5-2.5 metres
Spread1.5-2.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Wildlife gardens, Coastal, Mediterranean climate plants
Native toSW Asia
Care notes
CultivationWill grow nicely in fertile well-drained soil in full sun and will tolerate some partial shade
PruningPrune old wood in spring, see pruning group 9 or pruning group 8 for more detail
PropagationPropagate by seed or division in spring and softwood cuttings in summer
Pest resistanceMay be susceptible to leafhoppers
Disease resistanceMay be susceptible to honey fungus (rarely)