// SPECIES PROFILE · GRASS · NATIVE

Porter's reedgrass

Calamagrostis porteri ssp. insperata

Porter's reedgrass (Calamagrostis porteri ssp. insperata) is a grass in the — family. Native range includes AR, MO. Hardy in zones 5a–9a. Mature size 6"–4'. Blooms Jul–Sep.

// QUICK FACTS

Family: —
Group: grass
Native range: Native to 14 U.S. states, including AR, GA, IL, IN, KY, MD…
USDA hardiness: Zones 5a–9a
Mature size: 6"–4'
Sun: —
Water: —
Bloom: Jul–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Porter's reedgrass (Calamagrostis porteri ssp. insperata) — *Calamagrostis porteri ssp. insperata* — Porter's reedgrass. Photo via iNaturalist — (c) dsiripoonsup, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Porter's reedgrass (Calamagrostis porteri ssp. insperata) is a grass in the — family. Native range includes AR, MO. Hardy in zones 5a–9a. Mature size 6"–4'. Blooms Jul–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, porter's reedgrass pairs naturally with: Big Bluestem (Andropogon gerardii), Common Rush (Juncus effusus), Eastern Gamagrass (Tripsacum dactyloides), Eastern Woodland Sedge (Carex blanda).