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// SPECIES PROFILE · PERENNIAL · NATIVE

Giant four o'clock

Mirabilis gigantea

Giant four o'clock (Mirabilis gigantea) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 6a–10a. Mature size 29"–6'. Blooms Apr–Oct.

// QUICK FACTS
Family
—
Group
perennial
Native range
Native to OK, TX
USDA hardiness
Zones 6a–10a
Mature size
29"–6'
Sun
—
Water
—
Bloom
Apr–Oct
Wildlife value
Pollinator and wildlife support
Ecological role
native species profile
Giant four o'clock (Mirabilis gigantea)
Mirabilis gigantea — Giant four o'clock. Photo via iNaturalist — (c) Joshua Ebright, some rights reserved (CC BY).

Field Notes

[ growing · ecology · siting · care ]

Giant four o'clock (Mirabilis gigantea) is a perennial in the — family. Native range includes OK — verified against the Lady Bird Johnson Wildflower Center native distribution database. Hardy in zones 6a–10a. Mature size 29"–6'. Blooms Apr–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, giant four o'clock pairs naturally with: American Lotus (Nelumbo lutea), Aromatic Aster (Symphyotrichum oblongifolium), Broadleaf Arrowhead (Sagittaria latifolia), Blue-Eyed Grass (Sisyrinchium angustifolium).

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