1/4"; soak seeds for 8 hours in warm water or nick the seed coat to speed germination.
Seed To Bloom:
Start indoors 6-8 weeks before last frost. Keep at 65-75°F. Cover with humidity dome to retain moisture until germination occurs.
Direct sow after last frost.
WHEN TO SET OUTSIDE
About 2 weeks after last frost, when temperatures remain above 40°F.
PLACEMENT & CULTIVATION
Native snow on the mountain is an old-fashioned flower that should be more widely grown, as it is invaluable as a foil for hot-colored summer annuals, for its cool-green and white variegated foliage develops mid-summer. Grow mid border and in well-drained areas, pinching when 6" tall. Self-sows. Caution: Some people may experience a rash from handling these plants if the sap contacts skin; wear gloves to prevent reactions.
Mix in about 2" of compost or some organic granular fertilizer when transplanting.