// SPECIES PROFILE · ANNUAL · NATIVE

Arrowleaf tearthumb

Polygonum sagittatum

Arrowleaf tearthumb (Polygonum sagittatum) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11b. Mature size 29"–6'. Blooms Apr–May.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 40 U.S. states, including AL, AR, CO, CT, DC, DE…
USDA hardiness: Zones 2b–11b
Mature size: 29"–6'
Sun: Full sun
Water: Medium
Bloom: Apr–May
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Arrowleaf tearthumb (Polygonum sagittatum) — *Polygonum sagittatum* — Arrowleaf tearthumb. Photo by User:SB_Johnny via Wikimedia Commons (CC BY-SA 3.0).

Field Notes

[ growing · ecology · siting · care ]

Arrowleaf tearthumb (Polygonum sagittatum) is a annual in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11b. Mature size 29"–6'. Blooms Apr–May.

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, arrowleaf tearthumb pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Slim amaranth (Amaranthus hybridus).