Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Gomphrena — Growing reference
| Scientific name | Gomphrena globosa |
|---|---|
| Seed germination (days) | 7–14 |
| Soil temperature for germination (°C) | 21.1–26.7 |
| First harvest or flowering (days) | 60–80 |
| Measured from | Transplant |
| Plant spacing (cm) | 20.3–30.5 |
| Mature height (cm) | 30.5–61 |
| Mature spread (cm) | 20.3–30.5 |
| USDA hardiness zones | 3–11 |
| Light | Full sun |
| Water | Low |
| Sowing method | indoor-start |
Growing directions
Sow seed 1/4 in deep in warm starting mix; soak seed overnight to speed germination. Gomphrena thrives in heat and humidity and is highly drought tolerant once established. The clover-like flowers hold their color and shape exceptionally well when dried — harvest stems just as the heads reach full color. Deadheading encourages continuous fresh bloom throughout the summer.
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