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// SPECIES PROFILE · PERENNIAL · NATIVE

Largeleaf waterleaf

Hydrophyllum macrophyllum

Largeleaf waterleaf (Hydrophyllum macrophyllum) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 5a–9a. Mature size 1"–28". Blooms Apr–Jun.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to 14 U.S. states, including AL, AR, GA, IL, IN, KY…
USDA hardiness
Zones 5a–9a
Mature size
1"–28"
Sun
—
Water
—
Bloom
Apr–Jun
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Largeleaf waterleaf (Hydrophyllum macrophyllum)
Hydrophyllum macrophyllum — Largeleaf waterleaf. Photo by Mason Brock (Masebrock) via Wikimedia Commons (Public domain).

Field Notes

[ growing · ecology · siting · care ]

Largeleaf waterleaf (Hydrophyllum macrophyllum) is a perennial in the — family. Native range includes AR — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 5a–9a. Mature size 1"–28". Blooms Apr–Jun.

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, largeleaf waterleaf pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Blue-Eyed Grass (Sisyrinchium angustifolium), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis).

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