// SPECIES PROFILE · ANNUAL · NATIVE

Agueweed

Gentianella quinquefolia

Agueweed (Gentianella quinquefolia) is a annual in the — family. Native range includes AR, KS, MO. Hardy in zones 2b–9a. Blooms Aug–Sep.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 27 U.S. states, including AR, CT, GA, IA, IL, IN…
USDA hardiness: Zones 2b–9a
Mature size: —
Sun: —
Water: —
Bloom: Aug–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Agueweed (Gentianella quinquefolia) — *Gentianella quinquefolia* — Agueweed. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Agueweed (Gentianella quinquefolia) is a annual in the — family. Native range includes AR, KS, MO. Hardy in zones 2b–9a. Blooms Aug–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, agueweed pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Common threeseed mercury (Acalypha rhomboidea).