POKE MILKWEED, TALL MILKWEED Asclepias exaltata
Asclepias exaltata (poke milkweed or tall milkweed) is native to eastern North America. It blooms from late spring to early summer. Seeds are rare and hard to find.
Poke milkweed is found in moist woodland habitats. It grows in moist soil and sunny or partly d places. It grows from 0.6 to 1.5 meters (2.0 to 4.9 ft) tall.
Type: Hardy perennial
Height: 0.6 to 1.5 meters (2.0 to 4.9 ft), though usually near 5 feet
Location: Sun, part sun or part
Hardiness zones: 4-7
Bloom time: Mid summer to fall
Seeds per pack: 3
Note: This plant species is known to have toxicity. Ingestion of these seeds or this plant can cause illness such as vomiting or diarrhea.
Germination: As with many perennial seeds, these seeds can benefit from a period of moist cold to help them grow. This is done by giving them a cold 'winter' period (artificial or natural), and then a warming to simulate 'spring', and time to grow! Here's how this can be done:
Obtain a planting container that has holes in the bottom for excess water to drain. Place the seeds just under the surface of your growing medium, and water. Place your container in a cold area (but not freezing, perhaps a refrigerator) for 4-6 weeks. Once the cold period is completed, place the container at room temperature for them to germinate. Be sure to keep the soil moist during this entire germination period. Seedlings will sprout a few weeks, or occasionally several months, after the warming period.
If you are planting your seeds in late winter or spring, these seeds can be planted outdoors while it is still cool out (once the ground is workable and unfrozen), to receive the cold period naturally in the garden.