Thalictrum flavum 'Illuminator'
meadow rue 'Illuminator'
A clump-forming deciduous perennial to 1m tall, with deeply divided bright green foliage which emerges in spring yellow-green in colour with bronze flushes to the tips and in summer clusters of fluffy, fragrant lemon yellow flowers are produced
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Neutral, Acid, AlkalineColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow Bronze | |||
|---|---|---|---|---|
| Summer | Yellow | Green | ||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or East–facing
Exposure
Sheltered Hardiness
H6Botanical details
- Family
- Ranunculaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Thalictrum can be rhizomatous or tuberous perennials with ternately or pinnately divided, often attractive foliage, and panicles or racemes of small flowers with showy stamens and sometimes large colourful petal-like sepals
- Name status
Accepted
How to grow
Cultivation
Grow in moist, humus-rich soil, best partial shade but can tolerate drier soil and more sun than many other species. May need staking. See staking perennials for further advice
Propagation
Propagate by division as new growth begins in spring; divisions may be slow to re-establish
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Flower borders and beds
Pruning
Faded flower stems can be cut back in late autumn or in spring before new growth starts emerging
Pests
Generally pest-free
Diseases
May be susceptible to Powdery mildews
Get involved
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