Asclepias tuberosa 'Hello Yellow'
Plants grow 24 to 36 inches tall and have bright golden yellow flowers, a nice color selection that comes true from seed (Might be one or two orange tinted types.) Grow like the normal species in full sun in deep well draining soils. Attractive cut flowers. Loved my Monarch Butterflies.
Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 4 weeks use four weeks in the fridge. Asclepias tuberosa does not like wet water logged soils, so once the seedlings are established allow the soil medium to dry a little between watering. Plants spend the first year mostly growing a white taproot. The seeds are large enough for easy sowing.