Grow guide
How to grow Swamp Milkweed
Asclepias incarnata
- Type
- Milkweed
- Zones
- USDA zones 3–9
- Sun
- Full
- Time to harvest
- 120–180 days
- Spacing
- 18″ apart
- Density
- 1 per sq ft
- Habit
- Upright
- Frost tolerance
- Very hardy
- Sowing
- direct/transplant
- Start indoors
- 8 weeks before last frost
Care
- Water 2x/week in season
- Mulch As needed
Notes
Lilac-pink clusters on 3-5 foot stems July to September; monarch host plant; tolerates wet and average soils; cold stratify 30 days before sowing.
More milkweed varieties
Grows well nearby
Track Swamp Milkweed from seed to harvest with Evengrow.
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