Swamp Milkweed
Ice Ballet Milkweed is a striking white-flowered perennial that transforms any garden into a pollinator haven. This cultivar of Asclepias incarnata grows 12 to 36 inches tall and produces luminous white flower umbels from mid to late summer, earning its name from the delicate, icy appearance of its blooms. Hardy from zones 3 to 9, it thrives in consistently moist soil and needs at least 8 to 12 hours of sun daily. Gardeners who plant it discover something unexpected: the extraordinary diversity of beneficial insects and pollinators that flock to those pristine white flowers, making it far more than a pretty addition to the garden.
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High
3-9
36in H x ?in W
Perennial
Moderate
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Ice Ballet Milkweed earned its name for good reason; the pure white flower clusters have an ethereal quality that seems to glow in summer gardens. Bees and butterflies visit relentlessly, drawn to the abundant nectar and pollen these umbels produce. Unlike many ornamentals bred for appearance alone, this variety carries genuine ecological weight, supporting monarch butterflies and a vast array of native pollinators throughout its long bloom window. At 3 feet tall in optimal conditions, it commands presence in cottage gardens and meadows without dominating the space.
Ice Ballet Milkweed belongs in pollinator gardens and meadow plantings where its ecological role matters as much as its beauty. Gardeners cultivate it specifically to support monarch butterfly larvae and to attract diverse native bees and beneficial insects. Its white flowers integrate seamlessly into cottage garden borders and cutting gardens, though its primary value lies in its function as a living bridge between plants and the insects that sustain them.
Start seeds indoors 6 to 8 weeks before your last spring frost. Sow on moist seed-starting mix and maintain temperatures around 70 degrees Fahrenheit. Seeds typically sprout in 14 to 21 days under these conditions. Keep soil consistently moist but not waterlogged during germination.
Harden off seedlings over 7 to 10 days by gradually exposing them to outdoor conditions. Transplant after all danger of frost has passed and soil has warmed. Space 2 inches apart in the garden, or wider if you prefer larger individual plants. Ensure the transplant site receives 8 to 12 hours of sun daily.
Direct sow seeds outdoors after the last frost date, pressing them gently onto moist soil without covering; they need light to germinate. Keep soil consistently moist until seedlings are established. Seeds will sprout in 14 to 21 days under ideal conditions (60 to 75 degrees Fahrenheit).
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