Campanula glomerata 'SUPERBA' clustered bellflower
size/type
mid-sized perennial,mid-sized perennial
usual height
0,4-0,6m
usual width
0,3-0,5m
leaves
deciduous broadleaf
colour of leaves
flowers
showy
colour of flowers
blooming time
June-August
location
full to partial sun
USDA zone (lowest)
3 (down to -40°C)
winter protection
for zone 5+6
for zone 7
categorized
Bellflowers are perennials found in most of Northern hemisphere. They are popular in landscapes as well as they are maintenance-free and easy to grow. They offer several flower colours: mostly violet and white, and rarely blue and even pink, and bloom from early summer until autumn – upon variety.
Description of the plant:
Superba is a fantastic variety of Zvonek klubkatý with terminal clusters of deep violet flowers. They are formed on strong, 40-60 cm tall stems from mid June until late summer. Lance-shaped leaves are mid green and appear along the entire length of the stem up to the flower cluster. After the flowering has finished you can cut the plant back to encourage new growth and a second flush of flowers. Superba bellflower makes a great cut flower that lasts long in a vase. Clustered bellflower loves full sun and evenly moist, fertile, neutral to alkaline soil. It will grow in partial shade or filtered sunlight, too. Slugs love its leaves so make sure they are kept away of just emerging or young plants, these pests can eat them all up before they even make a stem. Very hardy to about -40°C (USDA zone 3), and is suitable for outdoor pots that must not dry out.
Last update 28-12-2013
