// SPECIES PROFILE · PERENNIAL · NATIVE

Smooth four o'clock

Mirabilis glabra

Smooth four o'clock (Mirabilis glabra) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 2b–10b. Mature size 29"–6'. Blooms May–Sep.

// QUICK FACTS

Family: —
Group: perennial
Native range: Native to AZ, CO, KS, NE, NM, OK, TX, UT
USDA hardiness: Zones 2b–10b
Mature size: 29"–6'
Sun: —
Water: —
Bloom: May–Sep
Wildlife value: Pollinator and wildlife support
Ecological role: native species profile

Smooth four o'clock (Mirabilis glabra) — *Mirabilis glabra* — Smooth four o'clock. Photo via iNaturalist — (c) Eric Knight, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Smooth four o'clock (Mirabilis glabra) is a perennial in the — family. Native range includes KS, OK. Hardy in zones 2b–10b. Mature size 29"–6'. Blooms May–Sep.

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, smooth four o'clock pairs naturally with: Broadleaf Arrowhead (Sagittaria latifolia), Butterfly Milkweed (Asclepias tuberosa), Cardinal Flower (Lobelia cardinalis), Lady Fern (Athyrium filix-femina).