Zinnia
How far apart to plant zinnias, how many fit your bed, when to plant them and how many you need.
- In the row
- 9 to 12 in
- Start indoors
- 4 weeks before last frost
- Plant out
- 0 weeks after last frost
- Sow outdoors
- 0 weeks after last frost
How many fit a raised bed
| Bed | At 10.5 in spacing |
|---|---|
| 4 x 4 ft | 16 |
| 4 x 8 ft | 36 |
| 3 x 6 ft | 18 |
Square grid with half the spacing kept clear at the bed edges.
Zinnias grow well on a 9 by 9 or 12 by 12 inch grid; give the large cut-flower types like Benary's Giant the wider spacing.
Zinnias are frost sensitive: start seeds 4 weeks before the last frost or sow directly after it.
Sources
- Zinnia Cut Flower Production in Utah, Utah State University Extension
- Zinnia elegans (Common Zinnia), NC State Extension Gardener Plant Toolbox