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Annual Biennial

Carthamus tinctorius

false saffron

An erect, branching annual to 60cm, with spiny leaves and vivid orange or yellow, thistle-like flower-heads with prominent green bracts

Other common names
American saffron
bastard saffron
see moredyer's saffron
fake saffron
rouge plant
safflower
safflower oil plant
saffron thistle
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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
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Orange Yellow Green
Autumn Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Asteraceae
Native to the UK
No
Foliage
Deciduous
Habit
Spreading branched
Genus

Carthamus can be annuals or perennials, with pinnately lobed, spiny-toothed leaves and thistle-like orange or yellow flower-heads in summer

Name status

Correct

Plant range
W Asia

How to grow

Cultivation

Grow in any light, well-drained soil in full sun

Propagation

Propagate by seed sown in gentle heat from early to late spring

Suggested planting locations and garden types
  • Cottage and informal garden
  • Cut flowers
  • Flower borders and beds
Pruning

Cut back after flowering

Pests

Generally pest-free

Diseases

Generally disease-free

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