Swamp milkweed seed 1/2 ounce (15 grams), Asclepias incarnata (hand collected)
Fifteen grams of swamp milkweed seeds. Half ounce. Seeds are harvested from plants grown in Missouri. Germination rate is untested. Botanical name: Asclepias incarnata. Start the seeds in a week using water germination or sow in the fall for a more natural method called cold moist stratification. Either way the monarch butterfly will appreciate having this milkweed available. Shipping is included.
Life Expectancy: Perennial
USDA Plant Hardiness Zone: 3-11 (-40ºF to 45ºF)
Light Requirement: Full sun to part shade.
Mature Height: 3 feet. Can reach 5 feet.
Bloom Colors: Pink and White.
Root Description: Fibrous.
Root Spread: Clump forming. Additional stems form from predictable center.
Container: Yes, with sufficient water. 2 gallon minimum size.