Anemonella thalictroides

RHS Plant Profile

rue anemone

RHS

Other common names

mayflower

Synonyms

Thalictrum thalictroides
Anemone thalictroides

Herbaceous Perennial

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A perennial making a spreading clump to 10cm tall, with divided, blue-green leaves and anemone-like white flowers 2cm wide in spring and early summer

Position

Partial shade

Soil Types

Loam

Max Height

Up to 10 cm

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: Up to 10 cm

Growing Conditions

Loam

Moisture: Moist but well–drained
pH: Acid or Neutral

Position

Partial shade

Aspect: East–facing or North–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): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Ranunculaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Anemonella are small, clump-forming tuberous perennials with fern-like, divided leaves and small clusters of cup-shaped flowers in spring and early summer
Name Status: Correct
Plant Range: E USA

How to Grow

Cultivation

Grow in moist, moderately fertile, humus-rich soil in part shade. Tubers may rot in very wet soils.

Propagation

Propagate by seed sown in containers in a cold frame as soon as ripe. Divide young plants in early spring.

Suggested planting locations and garden types

Cottage and informal garden
Rock garden
Underplanting of roses and shrubs

Pruning

No pruning required.

Pests

May be susceptible to slugs

Diseases

Generally disease-free