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// SPECIES PROFILE · ANNUAL · NATIVE

Hilly sandwort

Arenaria benthamii

Hilly sandwort (Arenaria benthamii) is a annual in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 4a–10a. Blooms Mar–Jul.

// QUICK FACTS
Family
—
Group
annual
Native range
Native to LA, NM, OK, TX
USDA hardiness
Zones 4a–10a
Mature size
—
Sun
Part shade
Water
—
Bloom
Mar–Jul
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Hilly sandwort (Arenaria benthamii)
Arenaria benthamii — Hilly sandwort. Photo via iNaturalist — (c) Reid Hardin, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Hilly sandwort (Arenaria benthamii) is a annual in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 4a–10a. Blooms Mar–Jul.

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, hilly sandwort pairs naturally with: Black-Eyed Susan (Rudbeckia hirta), Common Sunflower (Helianthus annuus), Indian Blanket (Gaillardia pulchella), Lemon Beebalm (Monarda citriodora).

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