A picture of a Wall Harebell

Wall Harebell

Campanula portenschlagiana

Also known as

Adria Bellflower, Dalmatian Bellflower, Wall Bellflower

Campanula portenschlagiana A by Wouter Hagens (CC BY-SA 3.0)

Full Sun
Easy care
Moderate watering
Frost Hardy

H5

RHS hardiness

-15°C

Minimum temperature

Expected size

Height
Spread

50cm

Max

50cm

10cm

Min

10cm

2 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Wall Harebell

A photo of Wall Harebell
A photo of Wall Harebell
A photo of Wall Harebell
Some purple Campanula portenschlagiana flowers on a plant
A photo of Wall Harebell

Wall Harebell Overview

Campanula portenschlagiana is an evergreen perennial species, also known as the Wall Harebell or Adria Bellflower, amongst other names. It grows low to the ground with a spreading, mat-forming habit. Rounded foliage and bell-shaped blue to purple-pink blooms which measure up to 2cms in length are produced on branched stems in the summer. This is an ideal plant for sunny borders or rock gardens, originating from Southern Europe. It can often be seen growing in wall crevices where it has self-seeded. Attractive to pollinators, Campanula portenschlagiana can also be used as groundcover and will suppress weed production - but plant with care and keep growth in check, as its vigorous growth can mean that it becomes invasive. Its biggest enemy is cold, wet winters but apart from that, it happily grows in most soils and in a sunny or partially shaded position.

Common problems with Wall Harebell

How to propagate Wall Harebell

Cuttings

Basal cuttings in spring.

Division

Division best done in spring or autumn.

Seed

Special features of Wall Harebell

Attractive flowers

Attracts butterflies

Attracts bees

Ground cover

Other uses of Wall Harebell

Walls, rock garden, ground cover, border, hanging basket, container