// SPECIES PROFILE · ANNUAL · NATIVE

Sixangle spurge

Euphorbia hexagona

Sixangle spurge (Euphorbia hexagona) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–10a. Mature size 1"–40". Blooms Jul–Oct.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 15 U.S. states, including AR, CO, DE, IA, IL, KS…
USDA hardiness: Zones 2a–10a
Mature size: 1"–40"
Sun: —
Water: —
Bloom: Jul–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Sixangle spurge (Euphorbia hexagona) — *Euphorbia hexagona* — Sixangle spurge. Photo via iNaturalist — (c) Sam Kieschnick, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Sixangle spurge (Euphorbia hexagona) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–10a. Mature size 1"–40". Blooms Jul–Oct.

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, sixangle spurge pairs naturally with: Common Sunflower (Helianthus annuus), Plains Coreopsis (Coreopsis tinctoria), Swamp verbena (Verbena hastata), Powell's amaranth (Amaranthus powellii).