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Annual Biennial

Bupleurum falcatum

sickle-leaved hare's ear

A biennial or short-lived perennial to 90cm tall with linear to narrowly lance-shaped leaves. Erect, wiry, branching stems bear loose umbels to 6cm across of tiny, yellow, star-shaped flowers from midsummer into early autumn

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Ultimate height

0.5–1 metres

Time to ultimate height

1–2 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Exposed or 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: Apiaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Bupleurum may be annuals, perennials or evergreen shrubs; the leaves are simple, the tiny yellow or green flowers are borne in a cluster usually subtended by petal-like green to yellow bracts
Name status: Correct
Plant range: Eurasia

How to grow

Cultivation

Grow in any well-drained soil in full sun

Propagation

Propagate by seed

Suggested planting locations and garden types

Cottage and informal garden
Wildlife gardens
Wildflower meadow
Low Maintenance
Flower borders and beds

Pruning

Deadhead to control self-seeding

Pests

Generally pest-free

Diseases

Generally disease-free

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