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Annual Biennial

Nigella orientalis 'Transformer'

yellow fennel flower 'Transformer'

A feathery-leaved annual with yellow, saucer-shaped flowers in late spring and early summer. The pale green seedpods mature to ivory, and are strongly ribbed, resembling an inside-out umbrella

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
1–2 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Yellow Green
Summer Yellow Green Green
Autumn Cream
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

Nigella are upright, bushy annuals with finely dissected leaves and solitary flowers with 5 blue or white, petal-like sepals and feathery bracts, followed by ornamental seed pods

Name status

Accepted

How to grow

Cultivation

Grow in any well-drained soil in full sun

Propagation

Propagate by seed sown in situ in mid-spring or autumn. Autumn-sown plants may need the winter protection of a cold frame or cloche

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds
  • Cut flowers
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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