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Amsonia tabernaemontana How to Grow Blue Dogbane Like many wild plants, blue dogbane germinates irregularly. This is a great help in the wild, where if two seedlings are knocked out by frost, eight more will take their place, but it can try the patience of a gardener. Start this plant indoors 2-3 months prior to last spring frost. Sow seed between layers of moist paper towels and place inside a sandwich baggie. Place baggie in refrigerator. Remove from refrigerator in 6-8 weeks. Move to a location at 70F (room temperature). Germination should begin in 3-4 weeks. As the seed begins forming a root, remove it from the baggie and pot up in individual containers. Be very careful to handle the sprout by the seed end rather than the root end. Poke a tiny hole in the peat, slide the root halfway in, and gently press the soil against the root. Or sow on Winter Solstice (see the Solstice Sowing page). Plant out in a semishady area in rich, moist soil, as would be found in a woodland. Or just plant outside in fall. It can take 2-3 years to flower but is worth the wait. Cut back to the crown when the plant dies back in winter. This plant will self-sow when it is happy. A native to the southeastern US, blue dogbane likes full sun to partial shade and dry to moist soil but can't take the far north (like the Canadian border). It benefits from pruning. General growing info. top All text on this site © 2004, 2005 Alchemy Works; No reproduction of any kind without permission |
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