Campanula glomerata 'SUPERBA'

Campanula glomerata 'SUPERBA'
clustered bellflower

SIZE/TYPE	mid-sized perennial
USUAL HEIGHT	0.4-0.6m
USUAL WIDTH	0.3-0.5m
LEAVES	deciduous broadleaf
COLOUR OF LEAVES	green
FLOWERS	showy
COLOUR OF FLOWERS	violet
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
BELONGS TO CATEGORIES	Perennials Summer blooms

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.

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

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GLOSSARY

STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
SHRUB - a woody plant with branches growing bushy from the ground level.
HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.