// SPECIES PROFILE · PERENNIAL · NATIVE

Rock largeflower tickseed

Coreopsis grandiflora var. saxicola

Rock largeflower tickseed (Coreopsis grandiflora var. saxicola) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 6b–11b. Mature size 6"–2'. Blooms May–Jun.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to 30 U.S. states, including AL, AR, CT, FL, GA, IA…
USDA hardiness: Zones 6b–11b
Mature size: 6"–2'
Sun: Part shade
Water: —
Bloom: May–Jun
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Rock largeflower tickseed (Coreopsis grandiflora var. saxicola) — *Coreopsis grandiflora var. saxicola* — Rock largeflower tickseed. Photo via iNaturalist — no rights reserved.

Field Notes

[ growing · ecology · siting · care ]

Rock largeflower tickseed (Coreopsis grandiflora var. saxicola) is a perennial in the — family. Native range includes AR, KS, MO, OK. Hardy in zones 6b–11b. Mature size 6"–2'. Blooms May–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, rock largeflower tickseed pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis), Common Evening Primrose (Oenothera biennis).