Fennel grows well for those who pay attention.

All plants Card

Fennel

Foeniculum vulgare

Zones 4–10

Growing

Fennel is a versatile herb that grows in cool weather. Because it is a perennial, you can establish your plants from seed or by dividing existing clumps. Use well-draining soil with a pH between 6.0 and 8.0. If you are growing fennel in containers, water regularly to prevent the soil from drying out completely, as consistent moisture keeps the plant's texture tender.

Fennel does not continue to ripen once it has been picked, so timing matters. You can harvest the tender young shoots or the inflated leaf bases to use much like celery in salads, braised dishes, or risottos. To preserve the flavor, dry the fruits for use as a spice in sausages, desserts, or spice blends. If you plan to freeze your harvest, blanch the fennel first to preserve its quality. To keep your harvest fresh in the refrigerator, store the stalks unwashed to prevent premature decay.

Stats
Sunfull sun
Watermedium
Grow time45–90 days
Height3–6ft
Spacing12–24in
Light
Full sun✓
Part shade✓
Shade✗
Traits
Life cycleperennial
Categoryherb
Growth habitupright
Seasoncool
Frost tolerancehalf hardy
Height3–6ft
Spacing12–24in
Days to maturity45–90
Days to bloomover 150
Native us✗
Growing
Watermedium
Drainagewell drained
Soil ph min6.0
Soil ph max8.0
Propagation
Seed✓
Cutting✗
Division✓
Graft✗
Tuber bulb crown✗
Transplant✗
Container ok✓
Pollinationself fertile
Pollinator friendly✓
Toxic parts
Leaves✗
Seeds✗
Raw✗
Spreadself seeds
Deer resistant✓
Drought tolerant✓
Toxic to
People✗
Pets✗
Livestock✗
Post harvest
Wash before storing✗
Ripens off plant✗
Curing daysnone
Shelf life1–4wk
Storage methods
Room temp✗
Cool dark✗
Fridge✓
Freeze✓
Can✓
Dry✓
Ferment pickle✓
Blanch before freezing✓
Bloom
Length6–12wk
Colors
White✓
Yellow✓
Orange✗
Red✗
Pink✗
Purple✗
Blue✗
Green✗
Pollinators
Visitors
Honey bees✓
Native bees✓
Bumblebees✓
Butterflies✓
Moths✓
Hummingbirds✗
Beneficial insects✓
Nectarmedium
Pollenmedium
Larval host✓
Specialist bees✓
Seed for birds✓
Invasive
Statusinvasive
Regions
Northeast✗
Southeast✗
Midwest✗
Plains✗
Southwest✗
Mountain west✗
Pacific northwest✗
California✓
Hawaii✗
State noxious✗
Escapes cultivation✓
Calendar, zone 7
JanFebMarAprMayJunJulAugSepOctNovDec
Sownonoyesyesyesnonononononono
Harvestnononononoyesyesyesyesnonono