Foeniculum vulgare 'Giant Bronze'

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fennel 'Giant Bronze'

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Synonyms

Ferula 'Giant Bronze'
Ferula communis 'Giant Bronze'

Plants for pollinators
Herbs - Culinary Herbaceous Perennial
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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

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
1-1.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H5

Colour & Scent

Fragrance Foliage Fruit
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Apiaceae
Native to GB/Ireland
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

May be susceptible to aphids and slugs

Diseases

May be susceptible to Powdery mildews