Sow outdoors, May-July, in a seed bed, 0.5cm (¼") deep, into finely-prepared, well-drained soil, which has already been watered. Seedlings usually appear in 14-28 days. Thin them to 15cm (6") apart when large enough to handle. Keep moist and weed free. Or, transplant individually, to 7.5cm (3") pots and overwinter in a cold frame. Plant out to flowering position, September-October, allowing 20cm (8") between plants. Flowers: April to June.
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