Description
Cosmos 'Purity' produces large, single, pure white annual flowers which contrast with the delicate fern like green foliage. It looks extremely graceful and is fantastic as a screen, or a background for shorter plants.
Cosmos 'Purity' also makes excellent cut flowers and is a great addition to any garden.
The bees and butterflies love them too!
| When to sow | Sow indoors March to April or outdoors April to May. |
| Where to sow | Sow indoors in moist compost filled pots or trays 0.5cm (1/4in) deep and cover the seeds with a very fine sprinkling of compost or vermiculite. Place in a warm position (temperature of 15-20°C (60-68°F) is ideal). |
| Sow direct outdoors in flowering position 0.5cm (1/4in) deep. | |
| What to do next | For seeds sown indoors, when seedlings are large enough to handle and all risk of frost has passed, acclimatise them to outdoor conditions over 7 to 10 days. Then transplant into final growing position planting them 30cm (12in) apart. |
| Thin the seedlings sown outdoors out so they are 30cm (12in) apart. Carefully replant thinned plants to fill any gaps. | |
| Water well until plants are established. | |
| Deadhead to prolong flowering and encourage new flower buds. | |
| Handy tips | Pinch out the growing tip of each stem when transplanting to encourage stems to branch and produce more Cosmos flowers. |
| Flowering period | June to October. |
| Uses | Ideal for cut flowers and as a tall flower at the back of a border. |
| Height | 100cm (40in) |
| Spread | 30cm (12in) |
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