// SPECIES PROFILE · PERENNIAL · NATIVE

Spiral ditchgrass

Ruppia cirrhosa

Spiral ditchgrass (Ruppia cirrhosa) is a perennial in the — family. Native range includes AR, MO, OK. Hardy in zones 1a–11a. Mature size 6"–2'. Blooms Apr–Oct.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 25 U.S. states, including AK, AR, AZ, CA, CO, IA…
USDA hardiness: Zones 1a–11a
Mature size: 6"–2'
Sun: —
Water: —
Bloom: Apr–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Spiral ditchgrass (Ruppia cirrhosa) — *Ruppia cirrhosa* — Spiral ditchgrass. Photo by E Wusk via Wikimedia Commons (CC BY-SA 4.0).

Field Notes

[ growing · ecology · siting · care ]

Spiral ditchgrass (Ruppia cirrhosa) is a perennial in the — family. Native range includes AR, MO, OK. Hardy in zones 1a–11a. Mature size 6"–2'. Blooms Apr–Oct.

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, spiral ditchgrass pairs naturally with: Lady Fern (Athyrium filix-femina), Wild Strawberry (Fragaria virginiana), Yarrow (Achillea millefolium), Common selfheal (Prunella vulgaris).