(Asclepias incarnata) Preferred food source of Monarch caterpillars. Often
found growing near Joe-Pye Weed. Bright pink and
red vanilla-scented flowers appear in June and July.
Grows 5' tall on moist soils with good drainage.
Perennial. Hardy to zone 4.
8-10 weeks before planting out
Green Thumb Tip Sow seeds indoors in flats 1/4" deep, moisten soil,
cover with plastic, and refrigerate for 10 days.
Thereafter, provide light and 50-75°F. This moist
stratification is not absolutely necessary, but will
help to increase germination.