Growing Guide
How to Grow Fennel
Everything you need to know about growing fennel — from planting to harvest.
Spring/Fall
Fall-Spring
Winter
Days to Harvest
60–90
Spacing
8–12"
Method
Both
Trellis
No
Where Fennel Grows Best
Fennel can be grown in 12 out of 12 USDA hardiness zones. Click a zone to see specific planting dates.
Growing Fennel
Fennel typically takes 60–90 days from planting to harvest. You can start seeds indoors or sow directly in the garden. Space plants 8–12" apart for optimal growth.
Common Pests
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 Fennel?
Fennel typically takes 60–90 days from planting to harvest. Timing varies by zone and growing conditions.
Can I grow Fennel in containers?
Many gardeners successfully grow fennel 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 Fennel?
Fennel grows well alongside many garden plants. Check our kit pages for curated combinations that include fennel.
Grow Fennel in Your Zone
Select your USDA hardiness zone for zone-specific planting dates and tips.