Lobelia - Cambridge Blue
This is an easy to grow plant, forming compact globes of clear sky-blue flowers. It is superb for bedding and edging, flowering in the summer. Height: 10cm.
Sow late winter to mid spring at 18-24C in a good seed compost. Sow seeds on surface of compost and gently firm down. Keep soil damp but not wet. Do not exclude light, sealing in a polythene bag after sowing is helpful. Germination usually takes 14-21 days. When seedlings are large enough to handle, transplant in bunches of 3 or 4 and grow on in cooler conditions. Gradually acclimatise to outdoor conditions for 1-15 days before planting out after all risk of frost, 1cm apart in a sunny spot in light