// SPECIES PROFILE · PERENNIAL · NATIVE

Lapham's phlox

Phlox divaricata ssp. laphamii

Lapham's phlox (Phlox divaricata ssp. laphamii) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11b. Mature size 1"–20". Blooms Mar–Jul.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 21 U.S. states, including AL, AR, GA, IA, IL, IN…
USDA hardiness: Zones 2b–11b
Mature size: 1"–20"
Sun: Part shade
Water: Medium
Bloom: Mar–Jul
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Lapham's phlox (Phlox divaricata ssp. laphamii) — *Phlox divaricata ssp. laphamii* — Lapham's phlox. Photo via iNaturalist — (c) Alicia Ballard, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Lapham's phlox (Phlox divaricata ssp. laphamii) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 2b–11b. Mature size 1"–20". 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, lapham's phlox pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Common Blue Violet (Viola sororia), Common Boneset (Eupatorium perfoliatum).