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| Helianthus | Common name; Sunflower |
A tall growing plant that grows up to 3.6metres (12ft) high with flowers that depending upon variety can be as much as 300mm (12") across.
Remove dead flowers to prevent self-seeding.
Week14; Sow seeds in 75mm (3") pots of seed compost and germinate at a temperature of 16°C (60°F).
Germination should take about five to six days.
Week 16; Prick out seedlings if large enough to handle
Grow on at a minimum temperature of 10°C (50°F) for a week to ten days then place in a frost free coldframe until planting out time.
Week 20; Plant out in well-drained soil in a sunny position, insert a stout cane/stake into planting hole prior to planting to avoid root damage at a later date.
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