Foeniculum vulgare 'Giant Bronze'
fennel 'Giant Bronze'
A robust, upright, aromatic biennial or short-lived perennial to 1.8m tall, with 3 to 4 pinnate copper-bronze to purple leaves composed of hair-like segments. Branching stems bear flat umbels of small yellow flowers in summer and green fruits in the autumn; both leaves and fruit are aniseed-scented when crushed
Size
Ultimate height
1–1.5 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Bronze Purple | |||
|---|---|---|---|---|
| Summer | Yellow | Bronze Purple | ||
| Autumn | Bronze Purple | Green | ||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Apiaceae
- Native to the UK
- No
- Foliage
- Deciduous
- Habit
- Bushy, Clump forming
- Genus
Foeniculum is a large biennial or perennial with aromatic, finely dissected leaves and umbels of small yellow flowers, followed by aromatic fruits
- Name status
Accepted
How to grow
Cultivation
Grow in moist but well-drained soil in fulll sun. May have the potential to become a nuisance if not managed well. See fennel cultivation for further advice
Propagation
Propagate by seed. See sowing vegetable seeds
Suggested planting locations and garden types
- Architectural
- Cottage and informal garden
- Mediterranean climate plants
- Gravel garden
- Prairie planting
- Wildlife gardens
- Flower borders and beds
- Cut flowers
Pruning
Cut back dead stems in autumn or winter. Remove faded flowers to prevent self-seeding
Pests
Diseases
May be susceptible to Powdery mildews
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.