How To Grow A Zinnia. Plant zinnias in rich soil amended with compost and organic fertilizer. Keep the soil moist and warm and once the seeds have sprouted put them in a sunny spot.
Use your fingers to make small holes in the ground. If sowing in trays or modules make sure you use free-draining compost so seedlings dont suffer from dampness and transplant seedlings as soon as they have a pair of true leaves. If there is one drawback to growing zinnias it is that they are susceptible to powdery mildew.
The holes should be about a quarter of an inch 6 centimeter deep for the zinnias to grow.
Mar 25 2020 How to grow Zinnias 5 Tips for Growing Zinnias 1. May 14 2021 Take cuttings from zinnias the same way you would with any other tender annual cut around 2-3 inches of leaf and stems and put in a small pot of two-third compost and one-third grit. Plant zinnia seeds a few inches apart in rows or clumps. You can start them right in the pots you intend to use.