- Perennial and hardy to zone 4
- Plants grow to 5 feet tall
- Bright pink and red, vanilla-scented flowers
- Blooms in June and July
- Preferred food source of Monarch caterpillars
(Asclepias incarnata) (aka Swamp milkweed) This North American native bears bright pink-and-red, vanilla-scented flowers in June and July. Surprisingly adaptable, this 5-foot-tall perennial is the preferred forage source for the larvae of Monarch butterflies and can grow in wet to well-drained soil. Perennial. Hardy to zone 4.
Start Indoors: 8-10 weeks before planting out
Germination: 10-15 Days
Plant Outdoors: 12-24” Apart
Light: Full Sun
Instructions - 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.