Answer: Asclepias seeds need to be given a cold treatment before germination, so put them in moistened compost and seal in a plastic baggie, then keep them in your refrigerator for 3-5 weeks. After this treatment, they'll take 30-90 days at temperatures of 50F - 75F degrees to germinate. Sow the seed on moist compost and barely cover them with seed-starting mix. After they've germinated and produced their second set of leaves, you can transplant them to individual pots. Asclepias require full sun and regular watering. After your transplants have been repotted, treat them to a few hours of direct sunshine each day to help them grow into robust, healthy specimens. Feed them every two weeks with a diluted liquid fertilizer, and harden them off before planting outdoors. Following the above guidelines should help you grow sturdy, healthy plants.
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