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White Whorled Milkweed blooming with Yellow Swallowtail Butterfly
Asclepias verticillata

Whorled Milkweed

Plants

50 Plug Tray Out of Stock

Description

Whorled Milkweed (Asclepias verticillata) is a fine-textured native prairie plant with very narrow, threadlike leaves that grow in whorls along the stems, giving it a soft, airy look that mixes easily into grasses and wildflowers. It may look delicate, but it’s a tough plant that handles dry conditions well.

In mid to late summer, clusters of small white to greenish-white flowers form near the tops of the stems, usually blooming from July through September—later than many other milkweeds. The flowers draw in all kinds of pollinators, including bees, wasps, flies, butterflies, and more. Like all milkweeds, it also serves as a host plant for monarch butterflies.

Whorled Milkweed grows best in full sun and prefers well-drained soils, including sandy or rocky sites. It’s drought-tolerant once established and spreads by rhizomes, slowly forming colonies over time. Plants typically reach around 2 feet tall and are deer- and rabbit-resistant, making them a dependable choice for prairie plantings, pollinator gardens, and naturalized areas.

Other milkweeds available include Butterfly Weed (Asclepias tuberosa), Swamp Milkweed (Asclepias incarnata), Common Milkweed (Asclepias syriaca), and Prairie Milkweed (Asclepias sullivantii), each offering different heights, colors, and moisture preferences for a range of planting conditions.

Seed Details

Weight 15 lbs
Dimensions 22 × 12 × 11 in

Range Map

Asclepias verticillata native range map

Details

SociabilityRhizomes, Colonies
Sun RequirementsFull Sun, Partial Sun
Soil MoistureDry, Dry-Mesic, Mesic
BenefitsPollinators, Bees, Deer Resistant
Height1-2'
USDA Zones3, 4, 5, 6, 7, 8, 9
Bloom ColorWhite
Bloom PeriodJuly, August, September
Plant Spacing1-2'

Seeds & Seed Mixes:

Seeds and seed mixes ship nationwide, year-round, typically within 3–5 business days. If you would like to postpone a seed mix shipment until fall, please note this at checkout.

Live Plants:

Live plants are available year-round while inventory lasts and ship to all states except California, Arizona, Oregon, Washington, Nevada, Alaska, and Hawaii. After your order is placed, we’ll contact you to coordinate a spring shipping window, as many plants are overwintered and ship once dormancy breaks.

Estimated shipping for 2026 plant orders begins in mid-April, weather permitting.

If you’re looking to secure plants in advance or need larger quantities for a project, we offer contract growing options. Contact us to discuss your needs and request a quote. Additional species not listed online may also be available through contract grow.

Live Stakes:

Live stakes are available by request only and must be ordered by submitting a contact form. Ordering is open seasonally from November 1 through February 28. A minimum of 100 stakes per order is required, with at least 25 stakes per species.

Live stakes ship only to the following states: Missouri, Minnesota, South Dakota, North Dakota, Nebraska, Kansas, Oklahoma, Arkansas, Tennessee, Kentucky, Illinois, Indiana, Ohio, Michigan, and Iowa.

PLS stands for Pure Live Seed, an industry-standard measure of seed quality. It reflects the portion of seed in a batch that is viable and capable of germinating.

What this means for you: when you purchase 1 lb. of PLS seed, the physical weight of the seed you receive will be slightly more than 1 lb. That’s because we account for non-viable seed and natural inert material upfront, so you receive a full pound of live, plantable seed.

Many companies sell bulk seed by total weight, which can include filler and non-viable seed. By pricing based on PLS, we make sure you’re getting exactly what you paid for—high-quality native seed with more predictable, successful germination.

Want to dive deeper? Check out our in-depth article on what PLS is and why it matters.