Not the plant you're looking for? Search over 300,000 plants
Herbaceous PerennialSynonym
Phlomis tuberosa 'Amazone'
sage-leaf mullein 'Amazone'
A herbaceous perennial, to 1.2m tall, with dark purple stems and large, pointed, deep green leaves. Dense whorls of hooded, lilac flowers appear on upright stems in summer, and remain attractive as seedheads
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Chalk
Loam
Sand
Moisture
Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Purple | Green | ||
|---|---|---|---|---|
| Summer | Purple | Purple | Green | |
| Autumn | Purple | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or ShelteredDrought resistance
Yes Hardiness
H5Botanical details
- Family
- Lamiaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Name status
Accepted
How to grow
Cultivation
Grow in fertile, reliably well-drained soil in full sun
Propagation
Propagate by division in spring
Suggested planting locations and garden types
- Coastal
- Gravel garden
- Cottage and informal garden
- Prairie planting
- Mediterranean climate plants
- Flower borders and beds
Pruning
Cut back flower stems when no longer decorative
Pests
Sage leafhopper may be a nuisance
Diseases
Generally disease-free
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.