Attracts butterflies and bees. Grows well in arid soils. Also known as milkweed, butterfly weed, butterfly milkweed, and butterfly-weed. Medicinal: Roots are a respiratory expectorant and diaphoretic. Perennial in zones 4-9. NOTE: Wild populations of Pleurisy Root have been deemed to be in danger of extinction. Harvesting of plants in the wild is strongly discouraged. Ht. 12-24". Avg. 5,500 seeds/oz. Packet: 100 seeds.
Latin Name: Asclepias tuberosa
Days to Maturity or Bloom:
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CAUTION: The milky sap of this plant may cause irritation in sensitive individuals. Exercise caution when harvesting. The purchaser assumes all liabilities relating to the use of this product.
DAYS TO GERMINATION: 14-21 days at 65-70°F (18-21°C). Stratification is required to increase germination; prechill seeds at 40-50°F (4-10°C) for 7-14 days.
SOWING: Transplant (recommended): Sow 10-12 weeks before last frost 1/4" deep into a seed starting mix, moisten,cover with plastic, and refrigerate at 40-50°F (4-10°C) for 7-14 days. After stratification, seeds should be brought into warmer temperatures to germinate. Begins taproot growth upon germination. Do not allow to become pot bound at any time as plants will deteriorate rapidly. Transplant into cell packs or 3-4" pots 3-5 weeks after sowing. Harden off and transplant outdoors after the last frost. Direct seed: Can be sown in the fall or spring.
LIGHT PREFERENCE: Sun.
SOIL: Well-drained, sandy loam to poor soil.
PLANT HEIGHT: Varies.
PLANT SPACING: 12-24".
HARDINESS ZONES: Varies.
HARVEST: Fresh: Harvest when 1/2 to 2/3 of flowers are open on a stem. If stems wilt after harvest, rehydrate in water for 24 hours.
USES: Cut flower. Borders, containers, and butterfly gardens.