Fennel (Herb) Growing Guide
Crop Rotation Group
Umbelliferae (Carrot and root family) ●
Fertile, well drained soil.
A sunny spot where fennel’s tall branches will not cause unwanted shade.
A short-lived hardy perennial, fennel will survive winter temperatures to -17C .
Not usually required.
Single Plants: 35cm (1' 1") each way (minimum)
Rows: 30cm (11") with 40cm (1' 3") row gap (minimum)
Sow and Plant
Frost areas: start seeds indoors in early spring. Frost free areas: sow in seed trays or seed beds in early spring.
Our Garden Planner can produce a personalised calendar of when to sow, plant and harvest for your area.
Fennel flowers attract numerous small beneficial insects.
Gather fennel fronds as you need them in the kitchen. Fennel can reseed to the point of weediness. Gathering and using the blooms as cut flowers will prevent excessive reseeding.
Prune back fennel plants in mid autumn, before cold weather turns the plants to mush.
Planting and Harvesting Calendar
< Back to All Plants