How To Grow Zinnias

How To Grow Menu | Zinnia Varieties

When to Plant

Plant directly outdoors once the danger of frost has passed or start indoors 4-6 weeks prior to last frost for earlier blooms. If starting early, give seeds the best start by using Jiffy seed starting products for optimal results.


Plants do best in rich, well drained soil in full sun.

Planting & Growing Information

Sow seeds 6 mm (1/4″) deep and 13 mm (1/2″) apart.

Seeds germinate in 5-7 days.


It is better to water at the base of zinnia plants to avoid getting the foliage wet thus helping to prevent disease.

The first flower shoot can be pinched out to encourage the zinnia plant to bush out and produce and better display.