// SPECIES PROFILE · PERENNIAL · NATIVE

Sawtooth sunflower

Helianthus grosseserratus

Sawtooth sunflower (Helianthus grosseserratus) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 126"–15'. Blooms Aug–Nov.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 33 U.S. states, including AR, CT, DE, GA, IA, IL…
USDA hardiness: Zones 2b–10a
Mature size: 126"–15'
Sun: Full sun
Water: —
Bloom: Aug–Nov
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Sawtooth sunflower (Helianthus grosseserratus) — *Helianthus grosseserratus* — Sawtooth sunflower. Photo by Eric Hunt via Wikimedia Commons (CC BY-SA 4.0).

Field Notes

[ growing · ecology · siting · care ]

Sawtooth sunflower (Helianthus grosseserratus) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–10a. Mature size 126"–15'. Blooms Aug–Nov.

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, sawtooth sunflower pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Common Evening Primrose (Oenothera biennis), False Sunflower (Heliopsis helianthoides), Lady Fern (Athyrium filix-femina).