Caryopteris x clandonensis 'THETIS'

Caryopteris x clandonensis
Caryopteris x clandonensis 'THETIS'
bluebeard
SIZE/TYPE small shrub
USUAL HEIGHT 0.6-1m
USUAL WIDTH 0.5-0.6m
LEAVES deciduous broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS deep purple
BLOOMING TIME August - October
LOCATION full sun
SOIL TYPE any (acidic to alkaline)
SOIL MOISTURE REQUIREMENTS evenly moist (dislikes drought)
USDA zone (lowest) 5   (down to -29°C)
WINTER PROTECTION  
FOR ZONE 5+6 Code of winter protection zone 5+6
FOR ZONE 7 Code of winter protection zone 7
BELONGS TO CATEGORIES Deciduous broadleaf
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Bluebeard is a small deciduous shrub for lovers of blue flowering plants. Its late summer and autumn flowers make it an ideal companion plant for perennial borders as it looks stunning situated close to black-eyed Susan, pink or white anemones, and even evergreen leucothoes whose leaves start to turn read when bluebeard’s blooming is at its peak. Thetis is a variety bred by Steinegger Bamschulen from Rheinfelden at German-Swiss border.

Thetis bluebeard boasts compact and strictly upright growth without arching side branches. In late summer it produces a profusion of dark violet-blue flowers. They are composed in cymes and are always occupied by bumble bees, butterflies and similar insects. They keep on blooming until mid autumn on the background of healthy foliage which is highly fragrant when touched or crushed. The leaves are deciduous, lance-shaped, coarsely toothed when they emerge and almost entire up on the stems, medium to dark green. Thanks to its unusual foliage shape and colour it will look great combined with pastel-coloured perennials and small shrubs.

Bluebeard is soil tolerant, however, it does best in fertile, very well-drained soil in full sun. It needs to be pruned hard every spring – cut off two thirds of previous year’s growth to encourage prolific branching that will secure even more profuse flowering. It is fully hardy to min. -25°C, in free-draining soil even to -27°C (USDA zone 5b). In zones 4 and 5a it acts like a perennial.

Last update 12-01-2020
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Caryopteris x clandonensis
Caryopteris x clandonensis
Caryopteris x clandonensis
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.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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