Evengrow

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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