Giant Four O'Clock

Mirabilis gigantea

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Nyctaginaceae
Genus:
Mirabilis
Species:
Mirabilis gigantea
USDA Symbol:
MIGI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
100 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
apr,may,jun,jul,aug,sep
Bloom Colors:
pink, magenta

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:
bees, hawkmoths, butterflies
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts from deep tuberous roots after fire or disturbance.

Soil Requirements

Soil Type:
well-drained, sandy or loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate

Propagation & Germination

Stratification:
None required
Germination Time:
7–21 days
Notes:
Seeds germinate readily with warm temperatures; no pretreatment typically required.

The above propagation data sourced from Claude AI