In short
- Site: full sun, free-draining soil, dry to moderately moist.
- Grown mainly for its silvery, felted leaves.
- Very drought-tolerant — dislikes wet soil and overhead watering.
- Forms a dense, spreading ground-cover mat.
- The flower spikes can be removed to strengthen the leaf rosette.
Botanical data
- Family
- Lamiaceae (Lamiaceae)
- Height
- 0.15–0.45 m
- Width
- 0.3–0.6 m
- Habit
- Creeping
- Growth rate
- Fast
- Position
- Full sun, Partial shade
- Soil
- Sandy, Chalky, Loamy
- pH reaction
- pH 6–7.8
- Moisture
- Dry, Moderate
- Bloom
- June–August
- Hardiness
- USDA 4a–8b
- Propagation
- By division
Characteristics
Forms a flat, spreading carpet of rosettes 15 cm tall (flower spikes to 45 cm). The oblong, thickly hairy leaves are covered in a dense, silver-white felt that reflects light and reduces water loss. In summer woolly spikes rise up bearing small, pink-purple flowers readily visited by bees.
Growing and care
Watering
Very drought-tolerant. Does not tolerate wet soil or overhead watering — the felted down rots with too much moisture.
Fertilizing
Very sparingly — on rich, moist soil the rosette loosens and rots more easily.
Planting
A sunny, free-draining site; on heavy soils add gravel or coarse sand for better drainage.
Pruning
After winter remove dried and rotted leaves; many gardeners cut out the flower spikes to strengthen the ornamental leaf rosette.
Companion plants
Good companions
The silvery, soft carpet of leaves softens the bare bases of roses and sets off their colour — a classic edging for the rose bed.
A Mediterranean duo with similar needs (sun, dry, free-draining soil); the silver of the lamb's ear leaves highlights the purple of the lavender.
A bluish, clump-forming grass with the same dry preferences creates a texture contrast with the felted leaves of lamb's ear.
Bad companions
Lamb's ear needs a dry, free-draining site — with the constant moisture these plants require, its felted leaves rot.
The evidence level indicates whether the relationship is backed by research, observation, or gardening tradition.
Toxicity
| For whom | Level | Notes |
|---|---|---|
| Humans | None | — |
| Dogs | None | — |
| Cats | None | — |
History and origin
A plant known in gardens for centuries, valued more for its leaf than its flower. In old folk medicine the soft, absorbent leaves were laid on wounds and grazes, hence English names such as woundwort within the Stachys genus.
Uses
For bed edging, gravel and rock gardens, dry banks, and as a silvery ground cover that links stronger colours. It combines superbly with roses, lavender and grasses in sunny, dry schemes.
Trivia
- The dense silver felt is an adaptation to dry, sunny habitats — it reflects excess light and limits the leaf's water loss.
- The flowers are a prized source of pollen and nectar; the wool carder bee (Anthidium) scrapes the hairs from the leaves to build its nest.
Frequently asked questions
Why do lamb's ear leaves rot and blacken?
This is the result of too much moisture — wet soil, overhead watering, or watering over the leaves. The felted down holds water and rots. Plant lamb's ear in free-draining soil and water at the root, removing rotted leaves in spring.
Should I remove the flowers of lamb's ear?
It is a matter of taste. Many gardeners cut out the flower spikes so the plant concentrates on its ornamental silvery leaves and keeps a dense, low carpet. The flowers are, however, valuable to bees, so they can also be left.
Does lamb's ear spread?
Yes, it spreads by creeping stems, forming an ever-wider carpet. It is easy to keep in check and rejuvenate by dividing the clumps in spring, which also provides new young plants.
Sources
- Plants of the World Online (POWO)Database (GBIF, POWO…)
- RHS — Stachys byzantinaInstitution / botanical garden
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