Caryopteris x clandonensis 'Elst33' BLUE EMPIRE

Caryopteris x clandonensis 'Elst33'
Caryopteris x clandonensis 'Elst33' BLUE EMPIRE
SIZE/TYPE medium-sized shrub
USUAL WIDTH 0.8-1.3m
LEAVES deciduous broadleaf
COLOUR OF LEAVES +multicoloured:green and blue-green
COLOUR OF FLOWERS +multicolored:violet and deep purple
BLOOMING TIME August - October
LOCATION full sun
SOIL TYPE any (acidic to alkaline)
SOIL MOISTURE REQUIREMENTS dry and sharply drained (xeriscape)
USDA zone (lowest) 5   (down to -29°C)
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
Summer blooms
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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.BLUE EMPIRE was found as a chance seedling in a production field of First Choice bluebeard by Fransiscus Johannes Christiaan Elst in 2011. It is protected by European Plant Breeders’ Rights patent No. 43537 granted in 2016.

BLUE EMPIRE is a stunning bluebeard variety with large flowers and leaves, and non-dwarf habit. Its flowers are considerably larger than on other varieties known so far, they are rich violet blue and come out in profusion from late August until early October. Deciduous leaves are larger, too, broadly lance-shaped to narrowly oval, dark green with silvery-grey hues, and very fragrant. BLUE EMPIRE grows fast into a compact, dense shrub over one meter tall and wide, and enriches late summer borders with a sought-after blue colour, especially if combined with orange, golden or yellow flowers.

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 11-10-2021

Caryopteris x clandonensis
Caryopteris x clandonensis
Caryopteris x clandonensis
  • 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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