30 seeds Sow directly outdoors when the soil is firm. Water the soil before sowing and keep moist during the germination period. Thin for stronger plants. Thin out later for longer flowering.
10 seeds Sow indoors in sandy potting soil mixed with 1/4 peat and 1/4 perlite or fine gravel. Place the seeds in a bright place at about 15-18°C. Keep the soil surface moist but not wet. Overwinter the tubers frost-free. Germination time 1-3 months
10 seeds Sow indoors. Cover with a thin layer of gravel or perlite. If germination has not occurred within a month, place the seeds in the refrigerator for about a month. Then outdoors in a shaded position. Can also be sown Sep-Nov outdoors in pots or in open ground intended for propagation. Germination time 1 - 3 months
50 seeds PERENNIAL hardy up to zone 6 Blooms the first year when sown early. Growing from seed: Sow indoors. The seeds are mixed with sand and distributed evenly on the moistened soil surface. Do not cover. If germination has not occurred within a month, place the seeds in the refrigerator for about a month.