Border Builder

Fennel

Foeniculum vulgare

Illustration of Fennel

Fennel is a perennial for mid-border, suited to full sun and loam, sandy soil or chalk, flowering Jul, Aug, Sep.

TypePerennial
Mature height180 cm
Spread60 cm
Aspectfull sun
FoliageDeciduous
HardinessUSDA 4a-9a, RHS H7
Pollinator-friendlyYes
Pet-safeYes

Where to use it in a border

At around 180 cm, it sits best toward the back of a border, or on its own as a focal point with room around it. Give it about 60 cm of room to spread. It is hardy across USDA zones 4a to 9a and rated H7 by the RHS, so check it suits your area before planting.

It appears in our lists of full sun, sandy soil, chalk soil, pollinator-friendly plants, pet-safe plants.

Border Builder uses Fennel's height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.

Download on the App Store

Flowering through the year

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Worth knowing

Good companions

Plants that share its conditions and style, chosen to complement its place in the border:

Garden styles

Mediterranean Wildlife garden

Sources

Bloom timing and hardiness drawn from: