Registering for this site allows you to access your order status and history. Just fill in the fields below, and weâll get a new account set up for you in no time. We will only ask you for information necessary to make the purchase process faster and easier.Create an Account
|Seeds per Packet
|Seeds per 1/8 oz
| Seeds / oz
|Ideal Soil Temp
|Direct Seed Spacing
|Days to Harvest
|Days to Sprout
These North American native milkweeds are hardy perennials that will tolerate full sun to partial shade and thrive in a wide variety of soils. Swamp milkweed (A. incarnata), as the name suggests, prefers moist soils, but will tolerate average soils if not too dry.
For best results, expose seeds to moist, cold conditions (stratification) prior to sowing. For cold stratification, place seeds in moist potting soil or sand and store in a refrigerator for 4-6 weeks. After stratification, sow seeds in containers or direct seed outdoors after the danger of frost has passed. Sow seeds 1/8-1/4" deep and 6-8" apart. Optimal soil temperature for germination is 65-80˚F. Seeds will sprout in 10-28 days. Thin seedlings so that mature plants are 24-36" apart.
Seeds can also be direct sown outdoors in winter where they will stratify naturally and germinate the in the spring.