Helen Campbell spider flower is a white-flowering form of cleome which is an annual native to Paraguay, Argentina, Uruguay and southern Brazil. These colorful, sun-loving annuals have fragrant foliage and colorful, highly scented flowers. The habit is very upright, the leaves are divided and palmate –like a hand at the bottom of the plant, undivided at the top and there is a spine at the base of each leaf. The airy flowers are produced at the ends of hairy stalks in loose, globular, un-branched groups in the summer. Each flower has long stamens giving it a spider-like appearance.
Cleome thrives in sandy, well-drained soils and hot weather. Sow the seeds after the danger of frost or grow in containers. Use Cleome in the backs of borders, as bedding plants and as cut flowers. Spider flower does self seed and tends to pop up around the garden.
Genus - Cleome
Species - hassleriana
Variety - Helen Campbell
Common name - Spider Flower
Pre-Treatment - Not-required
Hardiness zones - 4 - 10
Height - 0,90 - 1,20 m
Spread - 0,60 m
Plant type - Half Hardy Annual flower
Exposure - Full Sun, Shelter
Growth rate - Fast
Soil PH - Neutral
Soil type - Well-drained/light, moist, fertile
Water requirements - High
Landscape uses - Bedding Plant, Container, Cutflower, Feature Plant, Mixed Border, Wildflower
Bloom season - July - October
Leaf / Flower color - Green / White
1. Sow from February to March in trays of moist compost.
2. Sow thinly and cover with a fine layer of compost. Cover with glass, polythene or propagator lid.
3. Keep at +15-+20C. Seedlings appear in 14-21 days.
4. Remove cover when seedlings appear. When large enough transplant to individual pots. Transplant 45 cm apart in final position in end of May.
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