SKU: 20841557550
pure seed flower

pure seed flower Cosmos Purity Seeds

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Description

pure seed flower Cosmos Purity SeedsCosmos bipinnatus 'Purity' White Cosmos 'Purity' The definitive white Cosmos pristine silky white petals 810cm across, each surrounding a small sunny golden disc. 'Purity' is the neutral that amplifies every surrounding colour, the cut flower that glows in evening light, and the essential plant for the wedding garden, the white border, and any cutting patch that wants flowers that work with everything. If you can grow only one white Cosmos, grow this

Cosmos bipinnatus 'Purity' White Cosmos 'Purity'

The definitive white Cosmos — pristine silky white petals 8–10cm across, each surrounding a small sunny golden disc. 'Purity' is the neutral that amplifies every surrounding colour, the cut flower that glows in evening light, and the essential plant for the wedding garden, the white border, and any cutting patch that wants flowers that work with everything.

If you can grow only one white Cosmos, grow this one. Each flower is a perfect single daisy with broad silky-textured pure white petals around a small golden central disc — clean, simple, properly luminous in evening light. Tall airy stems (90–120cm) above the characteristic fine feathery Cosmos foliage. Half-hardy annual flowering July through to the first frosts. RHS Plants for Pollinators recognised — the open accessible daisy form is exceptional for bees, butterflies, hoverflies and other pollinators throughout its long season. The single most useful white cut flower in the cottage cutting garden: substantial, long-stemmed, exceptionally reliable, and the perfect neutral that makes every other colour in a bouquet read more vividly.

A note on growing

The Cosmos "starvation rule" is non-negotiable: do not feed. In rich soil 'Purity' produces magnificent ferny foliage and almost no flowers. In poor, lean, dry, unfed ground in full sun it flowers prolifically. Plant in the leanest, sunniest spot you have — sandy or gravelly soil is ideal.

Sow indoors February to April at 18–22°C. Surface-sow or barely cover; Cosmos seeds need light to germinate. Germination 7–14 days. Pot on and harden off. Plant out only after all risk of frost (late May/early June) in full sun. Pinch out the growing tip at 15–20cm — this transforms a single main stem into five to ten branching flowering stems over the following weeks. Space 45cm apart. Cut every 2–3 days from early morning for continuous flowering — the more you cut, the more it produces.

Where it shines

In the cutting garden as the indispensable white workhorse — every romantic bouquet benefits from 'Purity's' luminous neutral white. In all-white "moon gardens" where the silky petals genuinely glow in low evening light. In wedding work as the essential cut flower for white and pastel-themed weddings. In cottage borders as a softening backdrop that makes warmer colours read more vividly. In wildlife gardens, where the long-season open-faced flower provides accessible pollinator forage from July through November. Particularly outstanding for evening-garden plantings visible from kitchen windows or seating areas.

Plant alongside

The classic Cosmos combination: pair 'Purity' with Cosmos 'Sensation Mixed' (pinks and carmines) for the cottage cutting-garden standard — the white amplifies the pinks beautifully. For wedding-quality cutting, combine with Ammi majus, Cosmos 'Daydream' and Cosmos 'Double Click Rose Bon Bon' for the complete romantic white-and-blush palette. The pure white also makes a striking contrast against the deep indigo of Clary Sage 'Oxford Blue' and the velvet maroon of Cornflower 'Black Ball'.

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SKU: 20841557550

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