// SPECIES PROFILE · PERENNIAL · NATIVE

Antelope-horns

Asclepias asperula ssp. capricornu

Antelope-horns (Asclepias asperula ssp. capricornu) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 4a–10b. Mature size 1'–2'.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 11 U.S. states, including AZ, CA, CO, ID, KS, NE…
USDA hardiness: Zones 4a–10b
Mature size: 1'–2'
Sun: Full sun
Water: Medium
Bloom: —
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Antelope-horns (Asclepias asperula ssp. capricornu) — *Asclepias asperula ssp. capricornu* — Antelope-horns. Photo via iNaturalist — (c) Michelle W. （鍾偉瑋）, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Antelope-horns (Asclepias asperula ssp. capricornu) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 4a–10b. Mature size 1'–2'.

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, antelope-horns pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Sneezeweed (Helenium autumnale), Wild Strawberry (Fragaria virginiana).