Free shipping on ALL plant orders!

Asclepias verticillata

whorled milkweed add to wishlist

Plant types and subtypes: Perennials

Light Requirements: sun, part-sun

Water Use: low

Soil Moisture: dry, moist

Soil Description: average, poor, loam, clay, sand, gravel/rock

Height: 1'-2'

Bloom Time: June, July, August

Bloom Color: white

Leaf Color: green

Hardiness Zone: 3, 4, 5, 6, 7, 8, 9, 10

Additional Tags: attracts bees, attracts butterflies, clumping, colonizing, deer resistant, drought tolerant, naturalizing, ornamental foliage, poisonous, rock garden plant, showy fruit

Asclepias verticillata (whorled milkweed)
  • Asclepias verticillata (whorled milkweed)
  • Asclepias verticillata (whorled milkweed)
  • Asclepias verticillata (whorled milkweed)
  • Asclepias verticillata (whorled milkweed)

Pricing & Availability

Description

Asclepias verticillata

Also known as:

whorled milkweed

,

linear-leaved milkweed

Scientific Synonyms:

Description

Rarely growing taller than 2', Asclepias verticillata is one of the shorter milkweeds. Its needle-like foliage is distinctive and gives the plant a delicate and airy appearance. The leaves are whorled - hence the common name - light green, and finely hairy. The whitish flower clusters develop along the leaf axils of the upper part of the plant's stem. In early fall, these give way to attractive seed pods that burst open when ripe, letting the wind disperse the seeds that are attached to white fluffy tufts of hair.

Cultivation

Asclepias verticillata is adapted to dry conditions and full sun. It is best grown in poor, sandy, or rocky soil, where it will not be in competition with other taller species. Whorled milkweed is ideal for use in rock gardens or dry, sunny borders. The root system is rhizomatous, which allows the plant to spread vegetatively and form large colonies. It enjoys a long bloom period, extending for up to 2 months in mid to late summer. Zones 3-10

Propagation

Propagate by sowing freshly collected seeds in fall. Young plants growing on the lateral roots of mature plants can be separated and transplanted in spring.

Additional Notes

As with other milkweeds, the stems and leaves produce a milky sap when damaged that should be considered toxic. This species is particularly toxic to browsing mammals, which makes it unpopular among livestock farmers, but also very deer resistant.

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AL, AR, AZ, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, MI, MN, MO, MS, MT, NC, ND, NE, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY

USDA Endangered Status:

  • Special Concern: RI
  • Threatened: MA

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision Spermatophyta Seed plants
Division Magnoliophyta Flowering plants
Class Magnoliopsida Dicotyledons
Subclass Asteridae
Order Gentianales
Family Asclepiadaceae Milkweed family
Genus Asclepias milkweed
Species Asclepias verticillata whorled milkweed