// SPECIES PROFILE · PERENNIAL · NATIVE

Horsetail milkweed

Asclepias subverticillata

Horsetail milkweed (Asclepias subverticillata) is a perennial in the — family. Native range includes KS, MO, OK. Hardy in zones 2a–10b. Mature size 6"–3'. Blooms May–Sep.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 12 U.S. states, including AZ, CO, ID, KS, MO, NE…
USDA hardiness: Zones 2a–10b
Mature size: 6"–3'
Sun: —
Water: —
Bloom: May–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Horsetail milkweed (Asclepias subverticillata) — *Asclepias subverticillata* — Horsetail milkweed. Photo via iNaturalist — (c) Alex Abair, some rights reserved (CC BY), uploaded by Alex Abair.

Field Notes

[ growing · ecology · siting · care ]

Horsetail milkweed (Asclepias subverticillata) is a perennial in the — family. Native range includes KS, MO, OK. Hardy in zones 2a–10b. Mature size 6"–3'. Blooms May–Sep.

Why it's on this list: native species profile. Native-range data from the Lady Bird Johnson Wildflower Center (NPIN), cross-checked against iNaturalist observations. Part of Rooted Revival's regional native plant catalog — true natives for Oklahoma, Arkansas, Missouri and Kansas.

Companion Planting

[ guild · polyculture · cross-layer pairings ]

In the same native range, horsetail milkweed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Sneezeweed (Helenium autumnale), Wild Strawberry (Fragaria virginiana).