Peucedanum verticillare

RHS Plant Profile
giant hog fennel

Other common names

milky parsley

Herbaceous Perennial

A large, sometimes short-lived perennial, up to around 2m high in flower, with stout, purple-tinted stems and divided, slightly blue-green leaves. Flat heads of small yellow-green flowers are borne on branching stems at the top of the plant in early to mid summer

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
1–2 years
Max Spread
0.5-1 metres
Max Height
1.5-2.5 metres

Growing Conditions

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

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Sheltered
Hardiness
H7

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Apiaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming, Columnar upright
Genus
Peucedanum are predominantly herbaceous perennials, shrubs or rarely trees, with compound pinnate leaves and umbels of white, yellow or occasionally pink flowers
Name Status
Correct
Plant Range
S Europe

How to Grow

Cultivation

Tolerates a range of soils as long as drainage is good; prefers part shade but will tolerate full sun

Propagation

Propagate by seed, sown in a cold frame in autumn for germination in spring

Suggested planting locations and garden types

  • Architectural
  • Cottage and informal garden
  • Wildflower meadow
  • Flower borders and beds

Pruning

No pruning required; deadhead after flowering if seed is not required

Pests

Generally pest-free

Diseases

Generally disease-free