Growing Guide
How to Grow Zinnias
Everything you need to know about growing zinnias — from planting to harvest.
Summer
Spring
Year-Round
Days to Harvest
50–70
Spacing
8–12"
Method
Direct sow
Trellis
No
Where Zinnias Grows Best
Zinnias can be grown in 12 out of 12 USDA hardiness zones. Click a zone to see specific planting dates.
Growing Zinnias
Zinnias typically takes 50–70 days from planting to harvest. Sow seeds directly in the garden. Space plants 8–12" apart for optimal growth.
Common Pests
Kits Featuring Zinnias
These curated garden kits include zinnias.
Create Your Own Plant Playlist
Use our kit themes as a starting point and build a custom planting plan for your garden.
Create a PlaylistFrequently Asked Questions
How long does it take to grow Zinnias?
Zinnias typically take 50–70 days from planting to harvest. Timing varies by zone and growing conditions.
Can I grow Zinnias in containers?
Many gardeners successfully grow zinnias in containers. Use a pot at least 12-18 inches deep with good drainage. Container plants may need more frequent watering.
What are the best companion plants for Zinnias?
Zinnias grow well alongside many garden plants. Check our kit pages for curated combinations that include zinnias.
Grow Zinnias in Your Zone
Select your USDA hardiness zone for zone-specific planting dates and tips.