Back to grow guide
grow

Fennel

intermediate difficulty · hardiness zones 4–10

Methods
traditional
Planting window
April–June
Greenhouse
Not required
Compact variant
Not noted

Production planning estimate

Plan around bulbs per 32 sq ft bed

A starting estimate is 15 bulbs per 32 sq ft bed. That means one garden bed is a reasonable first unit to plan for, then adjust for your climate, practices, and household demand.

Space guideline

32 sq ft per garden bed

Starting plan

— garden beds

Planning note: Bolts quickly during long, hot days. Plant for a spring or fall harvest rather than midsummer.