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Herbaceous Perennial

Thalictrum morisonii

Morison's meadow rue

A clump-forming perennial, to 2m tall, with feathery, divided foliage and light yellow, fluffy flowers clustered in rounded panicles in summer

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Ultimate height

1.5–2.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Chalk

Clay

Loam

Moisture

Moist but well–drained, Poorly–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or West–facing or East–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Ranunculaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Bushy
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: Correct
Plant range: S Europe

How to grow

Cultivation

Grow in moist, humus-rich soil in partial shade; can tolerate a sunny position provided the soil remains moist. May require staking. See staking perennials for further advice.

Propagation

Propagate by seed or by division

Suggested planting locations and garden types

Coastal
Cottage and informal garden
Low Maintenance
Cut flowers
Flower borders and beds

Pruning

Cut down stems once flowering is over

Pests

Generally pest-free

Diseases

May be subject to powdery mildews in dry conditions

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