Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Angelonia — Growing reference
| Scientific name | Angelonia angustifolia |
|---|---|
| Seed germination (days) | 14–21 |
| Soil temperature for germination (°C) | 21.1–23.9 |
| First harvest or flowering (days) | 60–80 |
| Measured from | Transplant |
| Plant spacing (cm) | 30.5–45.7 |
| Mature height (cm) | 30.5–61 |
| Mature spread (cm) | 25.4–35.6 |
| USDA hardiness zones | 2–11 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | indoor-start |
Growing directions
Start seeds on the surface of a moist, fine-textured germination mix at 70–75°F; seeds need light to germinate so do not cover. Transplant into full sun after last frost, spacing 12–18 in apart in well-drained soil enriched with compost. Angelonia is heat- and drought-tolerant once established and rarely needs deadheading, as spent florets drop cleanly. Pinch stem tips early to encourage branching and a fuller plant shape.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0