Smooth Four O'Clock
Mirabilis glabra
- Native to:
- Mexico, United States
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Nyctaginaceae
- Genus:
- Mirabilis
- Species:
- Mirabilis glabra
- USDA Symbol:
- MIGL3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may,jun,jul,aug,sep
- Bloom Colors:
- white, pink
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
Garden & Ecology Notes
- Wildlife Value:
- hawkmoths, bees
- Deer Resistant:
- Yes
- Fragrant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from deep tuberous roots following fire; adapted to prairie and grassland fire regimes.
Soil Requirements
- Soil Type:
- well-drained, sandy or rocky soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to arid regions, prefers dry conditions
Propagation & Germination
- Stratification:
- None required
- Germination Time:
- 7–21 days
- Notes:
- Seeds germinate readily without pretreatment; warm soil temperatures improve germination rates.
The above propagation data sourced from Claude AI