Full Sun
Easy care
Light watering
Half-hardy
H3
RHS hardiness
-5°C
Minimum temperature
Expected size
Height | Spread | |
|---|---|---|
4m | Max | 1m |
2.5m | Min | 50cm |
5 years to reach maturity
Flowering
spring
summer
autumn
winter
This plant has a mild fragrance
Giant Fennel Overview
They are usually found in the Mediterranean region, they are tall robust perennials about 4.5m high, with narrowly lobed leaves and leaf stalks that sheath the stems. The 5- petalled yellow flowers will appear in the early summer. The plants may take several years to flower.
Common problems with Giant Fennel
How to propagate Giant Fennel
Seed
Seed when fresh, in late summer.
Other uses of Giant Fennel
Can be found on road-sides or waste ground.