Lobelia pedunculata

RHS Plant Profile
blue star creeper

Synonyms

Pratia pedunculata

Alpine Rockery Herbaceous Perennial

A vigorous evergreen perennial to 2cm tall, quickly forming a wide mat of tiny rounded leaves, with short-stalked star-shaped pale blue flowers in summer; male and female flowers are on separate plants, so it is unlikely to fruit

Position

Full shade, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Up to 10 cm

Max Spread

1-1.5 metres

Size

Time to Maturity
1–2 years
Max Spread
1-1.5 metres
Max Height
Up to 10 cm

Growing Conditions

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

Position

Full shade Partial shade
Aspect
North–facing or West–facing or East–facing
Exposure
Sheltered
Hardiness
H4

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Campanulaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Matforming
Potentially harmful
Harmful if eatenskin irritant. Wear gloves and other protective equipment when handling Wear gloves and other protective equipment when handling. Pets: Harmful if eatenskin irritant. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Lobelia can be annuals, perennials or shrubs, with simple leaves and showy 2-lipped flowers that may be solitary or in racemes or panicles
Name Status
Correct
Plant Range
Australia

How to Grow

Cultivation

Grow in fertile, loamy, moist to well-drained soil in partial or deep shade

Propagation

Propagate by division at any time of year, keeping the divisions well watered until they are established

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • Rock garden
  • Flower borders and beds
  • Ground cover

Pruning

No pruning required

Pests

May be susceptible to slugs

Diseases

Generally disease-free