Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Foxglove — Growing reference
| Scientific name | Digitalis purpurea |
|---|---|
| Seed germination (days) | 14–21 |
| Soil temperature for germination (°C) | 15.6–21.1 |
| First harvest or flowering (days) | 365–730 |
| Measured from | Seed |
| Plant spacing (cm) | 45.7–61 |
| Mature height (cm) | 91.4–182.9 |
| Mature spread (cm) | 45.7–61 |
| USDA hardiness zones | 4–9 |
| Light | Partial sun |
| Water | Moderate |
| Sowing method | indoor-start |
Growing directions
Press seeds onto the surface of moist potting mix under bright light — do not cover, as light aids germination. Foxgloves are biennial or short-lived perennials; most produce a rosette in year 1 and the spectacular tall spikes in year 2 before setting seed and dying. Cutting the main spike after bloom often stimulates smaller side spikes for additional flowers, and self-sowing keeps the planting going indefinitely. All parts of the plant are highly toxic; use caution and wash hands thoroughly after handling.
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