Butterfly Milkweed - 3314
Asclepias tuberosa (Asclepiadaceae)
An extremely hardy, long-lived perennial native to North America. The magnificent bright orange flowers are concentrated in compact clusters at the top of branching stems. The flowers produce a large quantity of nectar which attracts butterflies throughout the growing season. Requires a very well drained sandy or gravelly soil in full sun. Butterfly Milkweed may take up to two years to become established from seed.
Suggested Use: Rock gardens, roadsides, mass plantings, borders.
Miscellaneous: Produces a very deep taproot making transplanting difficult . The stem, when broken, does not produce the milky white sap characteristic of this plant family. Once established is very dependable.
Average Planting Success: 50%
Height: 1 - 2 feet
Germination: 30 - 90 days
Optimum Soil Temp. for Germination: 65°F - 75°F
Sowing Depth: 1/16"
Blooming Period: June - September
Average Seeds Per Pound: 87,000
Seeds/Pkt: 110 - Covers 20 sq. ft.
1 oz Covers: 272 sq. ft.
Seeding Rate: 10 lbs. per acre