// SPECIES PROFILE · ANNUAL · NATIVE

Orangegrass

Hypericum gentianoides

Orangegrass (Hypericum gentianoides) is a annual in the — family. Native range includes AR, MO, OK. Hardy in zones 2b–11b. Mature size 6"–2'. Blooms Jul–Oct.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 34 U.S. states, including AL, AR, CT, DC, DE, FL…
USDA hardiness: Zones 2b–11b
Mature size: 6"–2'
Sun: Part shade
Water: Low · xeric
Bloom: Jul–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Orangegrass (Hypericum gentianoides) — *Hypericum gentianoides* — Orangegrass. Photo by Bob Peterson from North Palm Beach, Florida, Planet Earth! via Wikimedia Commons (CC BY-SA 2.0).

Field Notes

[ growing · ecology · siting · care ]

Orangegrass (Hypericum gentianoides) is a annual in the — family. Native range includes AR, MO, OK. Hardy in zones 2b–11b. Mature size 6"–2'. Blooms Jul–Oct. Low water use makes it a strong candidate for xeric and drought-conscious plantings.

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, orangegrass pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Common threeseed mercury (Acalypha rhomboidea).