Zinnias are one of the easiest flowers to grow. They can be sprinkled into wildflower gardens, and they will grow without any maintenance. Even though zinnias prefer rich, moist soil, they can tolerate poor soil and drought.

After preparing soil for planting, California Giants Zinnia seeds can be scattered or directly sown across the soil. Once scattered, cover the seeds with a 1/4 inch deep layer of soil or mulch.

Zinnias don’t take any special care. They need warm temperatures and full sun. Zinnias will grow best in enriched soil that is moist but drains well. However, they can tolerate heat and dry conditions. Water weekly with a deep soaking for good growth and the best blooms. Avoid getting the leaves and flowers wet, which can lead to powdery mildew. Drip irrigation and soaker hoses work well.

Zinnia seeds are easy to save and sow next year. At the end of the season, let the flowers continue growing until they go to seed. Once they are dry, they can be stored in envelopes to plant next season.