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Annual Biennial

Ammi majus 'Snowflake'

A robust, upright, branched annual to 1m tall, with finely cut, feathery foliage. In summer it produces rounded umbels composed of numerous small white flowers. A good filler in the border and can be cut for floral arrangements

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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

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

East–facing or South–facing or West–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: Apiaceae
Native to the UK: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Ammi can be annuals or biennials, upright or spreading, with fern-like, pinnately divided leaves and large, branched umbels of small creamy-white flowers in summer
Name status: Accepted

How to grow

Cultivation

Grow in any moist but well-drained soil in full sun. Plants may require support - see staking perennials for further advice

Propagation

Propagate by sowing seed under glass in early spring or autumn, or in situ in late spring

Suggested planting locations and garden types

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

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

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