Fennel flower head emerging from protective casing.

Fennel flower head emerging from protective casing.

Chelsea Flower Show 2013, Fera - Stop the spread, Designer Jo Thompson. Silver Flora medal

Fennel bulb, Florence fennel, Foeniculum vulgare.

Fennel, Foeniculum vulgare.

Fennel, Bronze fennel, Foeniculum vulgare 'Purpureum'.

Fennel, Foeniculum vulgare.

Fennel bulb, Florence fennel, Foeniculum vulgare azoricum.