// SPECIES PROFILE · ANNUAL · NATIVE

Phlox heliotrope

Heliotropium convolvulaceum var. convolvulaceum

Phlox heliotrope (Heliotropium convolvulaceum var. convolvulaceum) is a annual in the — family. Native range includes AR, KS, OK. Hardy in zones 2a–11a. Mature size 1"–16". Blooms Mar–Oct.

// QUICK FACTS

Family: —
Group: annual
Native range: Native to 11 U.S. states, including AR, AZ, CA, CO, KS, NM…
USDA hardiness: Zones 2a–11a
Mature size: 1"–16"
Sun: —
Water: —
Bloom: Mar–Oct
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Phlox heliotrope (Heliotropium convolvulaceum var. convolvulaceum) — *Heliotropium convolvulaceum var. convolvulaceum* — Phlox heliotrope. Photo via iNaturalist — (c) samlutfy, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Phlox heliotrope (Heliotropium convolvulaceum var. convolvulaceum) is a annual in the — family. Native range includes AR, KS, OK. Hardy in zones 2a–11a. Mature size 1"–16". Blooms Mar–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, phlox heliotrope pairs naturally with: Common Sunflower (Helianthus annuus), Swamp verbena (Verbena hastata), Powell's amaranth (Amaranthus powellii), Green amaranth (Amaranthus powellii ssp. powellii).