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giant four o'clock, Mirabilis multiflora behind Deep Springs College, Inyo Mountains, elevation 1625 m (5325 ft), May 1980. From Kodachrome-64 color transparency film exposed with a Yashica Rangefinder fixed-lens camera. Scanned at 4000 dpi

Photo: Jim Morefield from Nevada, USA (CC BY-SA 2.0), via Wikimedia Commons

Fruit & ediblelow water

Colorado Four O'Clock

Mirabilis multiflora

Colorado Four O'Clock (Mirabilis multiflora) is a landscape plant valued for its form and structure as much as its bloom. It reaches roughly 2 ft at maturity and blooms in late spring. Match it to full sun to part shade and let it go dry between waterings once it is established. One caveat: like any plant, its published range is a guideline, not a guarantee, for the specific microclimate of your yard. Given a spot that matches its light and water needs, it is a dependable, low-drama addition to the yard.

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Hardiness range

A hardiness zone is not on file for this plant yet, and a ZIP-level fit check is not available for it.

How it does in your yard

HabitNot recorded
Hardiness zoneNot recorded
Mature heightAbout 2 ft
Waterlow
Bloom periodLate Spring
Native to the USNot recorded
Toxicitynone

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Questions

Is Colorado Four O'Clock native to the United States?

USDA PLANTS data does not record Colorado Four O'Clock as native to the United States.

What USDA hardiness zone does Colorado Four O'Clock need?

A minimum hardiness zone is not on file for Colorado Four O'Clock yet.