Use care and/or gloves when handling as this plant may cause allergic reactions and skin irritation.
on the surface of a peat/sand mix seed compost and gently firm down. Keep the soil damp but not wet and do not exclude light. Place in a propagator or seal the seed tray inside a polythene bag at a temperature of at 13-15C (55-60F) for 2-3 weeks. Move to a refrigerator (not freezer) for 3-6 weeks, after which return the tray to the recommended germination temperature. Keep the compost moist at all times. Germination can be very slow taking from 30-365 days.
Soil temperature should be kept higher than 13°C / 55°F to ensure good germination.These estimates for how long Blue dogbane takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Average days | Min days | Max days (0)
Eastern bluestar, Amsonia, Woodland Blue Star, Willow Amsonia
Amsonia tabernaemontana Walter, Amsonia tabernaemontana var. tabernaemontana