Roundleaf Four O'Clock
Mirabilis rotundifolia
- Native to:
- United States
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Nyctaginaceae
- Genus:
- Mirabilis
- Species:
- Mirabilis rotundifolia
- USDA Symbol:
- MIRO2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 60 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- pink, magenta
Garden & Ecology Notes
- Wildlife Value:
- pollinators, moths
- Deer Resistant:
- Yes
- Fragrant:
- Yes
Soil Requirements
- Soil Type:
- rocky, well-drained sandy soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- native to arid regions, prefers rocky slopes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds germinate readily after cold stratification. Light may improve germination.
The above propagation data sourced from Claude AI