Downtoearthdigs
Answered on April 30, 2016
Space small (dwarf) varieties 6-8 inches apart and space large varieties (those that grow to 2 feet or more) 12 inches apart.
I would refer to your seed packet for planting instructions, but usually zinnia seeds are planted 1/4" deep. If you are planting actual plants, dig a hole as deep as the root ball and twice as wide.
For more information on the care of zinnia plants, please visit the following link:
https://www.gardeningknowhow.com/ornamental/flowers/zinnia/growing-zinnia-flowers.htm
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