Cleome

The spider flower — tall, airy stems crowned with spidery pink, rose and white heads, adding height and drama to the back of summer borders.
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Cleome seeds — the airy spider flower for height and drama

Cleome, the spider flower, brings striking vertical presence to summer borders — tall stems crowned with airy, spidery heads of pink, rose and white, their long stamens and slender seed pods giving the plant its name. The classic garden species is gathered under Cleome hassleriana within our flower seed range. New to flowers? Our flower growing guide gets you started.

One of the best back-of-border annuals — the calendar shows when to sow.

Height, movement and pollinators

Reaching well over a metre, cleome adds backbone and movement to our annual flowers, while its nectar-rich heads draw bees, butterflies and moths, placing it among our pollinator flowers. For the botanical detail, see Cleome hassleriana.

Growing cleome from seed

Sow under cover in spring in warmth, as the seed germinates best with some heat; prick out and grow on frost-free. Plant into full sun and free-draining soil once warm, spacing generously — cleome thrives in heat and keeps flowering well into autumn.

Planning a tall, lively border? Here's where to look next.

Popular flower categories: Cleome hassleriana · Annual Flowers · Pollinator Flowers · Cut Flowers · All Flower Seeds

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Why is cleome called the spider flower?
Its long, projecting stamens and slender seed pods radiate from each flower head like spider legs, giving the plant its common name. When should I sow cleome seed?
Sow under cover in spring in warmth, as the seed germinates best with some heat, then plant out once the weather is reliably warm. How tall does cleome grow?
It reaches well over a metre, making it an excellent back-of-border annual for height and movement. Does cleome attract pollinators?
Yes, the nectar-rich heads are a favourite of bees, butterflies and evening moths throughout summer.