// SPECIES PROFILE · PERENNIAL · NATIVE

Disk waterhyssop

Bacopa rotundifolia

Disk waterhyssop (Bacopa rotundifolia) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11a. Mature size 6"–2'. Blooms Sep–Nov.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 28 U.S. states, including AL, AR, AZ, CA, CO, IA…
USDA hardiness: Zones 2a–11a
Mature size: 6"–2'
Sun: Full sun
Water: High · moisture-loving
Bloom: Sep–Nov
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Disk waterhyssop (Bacopa rotundifolia) — *Bacopa rotundifolia* — Disk waterhyssop. Photo by Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA SCS. 1989. Midwest wetland flora: Field office illustrated guide to plant species. Midwest National Technical Center, Lincoln via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Disk waterhyssop (Bacopa rotundifolia) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2a–11a. Mature size 6"–2'. Blooms Sep–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, disk waterhyssop pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Lady Fern (Athyrium filix-femina), Sneezeweed (Helenium autumnale), Wild Strawberry (Fragaria virginiana).