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// SPECIES PROFILE · ANNUAL · NATIVE

Scarlet gilia

Ipomopsis aggregata ssp. formosissima

Scarlet gilia (Ipomopsis aggregata ssp. formosissima) is a annual in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2b–11a. Mature size 6"–3'. Blooms Aug–Oct.

// QUICK FACTS
Family
—
Group
annual
Native range
Native to 13 U.S. states, including AZ, CA, CO, ID, MT, NM…
USDA hardiness
Zones 2b–11a
Mature size
6"–3'
Sun
Part shade
Water
Low · xeric
Bloom
Aug–Oct
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Scarlet gilia (Ipomopsis aggregata ssp. formosissima)
Ipomopsis aggregata ssp. formosissima — Scarlet gilia. Photo via iNaturalist — (c) Justin, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Scarlet gilia (Ipomopsis aggregata ssp. formosissima) is a annual in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 2b–11a. Mature size 6"–3'. Blooms Aug–Oct. Low water use makes it a strong candidate for xeric and drought-conscious plantings.

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, scarlet gilia pairs naturally with: Common Sunflower (Helianthus annuus), Rocky mountain bee-plant (Peritoma serrulata), Swamp verbena (Verbena hastata), Powell's amaranth (Amaranthus powellii).

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