Hibiscus x 'CRANBERRY CRUSH'

Hibiscus x
Hibiscus x 'CRANBERRY CRUSH'
swamp mallow, hardy hibiscus
SIZE/TYPE mid-sized perennial
USUAL HEIGHT 0.8-1m
USUAL WIDTH 0.8-1m
LEAVES deciduous broadleaf
COLOUR OF LEAVES +multicoloured:green a burgundy red
FLOWERS showy
COLOUR OF FLOWERS deep red
BLOOMING TIME August - September
LOCATION full sun
USDA zone (lowest) 4   (down to -34°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 Perennials
Summer blooms
Exotics
náhled fotonáhled foto
Swamp mallow and its hybrids have been sought after plants for the past few years now. They are perennials with sturdy stems that have large, tropically looking flowers. Cranberry Crush variety will awaken your love for rich cranberry red colour that is almost hypnotizing. It comes from a very successful series bred by Clarnece H.Falstad from Walters Gardens in Michinagn, USA, and which included such inventions like Summer Storm, Jazzberry Jam, or Plum Fantasy. It was bred in 2006 and patented as PP21984 in 2011.

Cranberry Crush swamp mallow produces large, cup-shaped, rich cranberry red flowers from midsummer until early autumn. They are borne atop about one meter tall, strong, red stems, and each stem makes 14-20 flowers. Deciduous leaves are ovate to hart-shaped, dark green with wine red hues, same like their veins and margins, and turn yellow and orange in autumn.

Swam mallow and its hybrids are commonly suited for regular garden soil of any pH, just make sure it does not dry out. In hot and dry summers it is dependent on regular watering and feed supply. Use fertilizers with enough phosphorus for abundant flowering, or any other quick-release fertilizers where nitrogen is not predominant. Any fertilizing has to stop by end September. Still, nitrogen-based fertilizer is useful when the plant wakes up from dormancy in mid spring, but should not be used longer than 8 weeks. Hardy hibiscus emerges very late, sometimes as late as in late May.

For healthy growth and profuse flowering it needs a sunny location with a lot of moisture which can be achieved by good mulching. The soil has to be fertile and can be clay and boggy, never let it dry out either in summer or during dry winters - its fleshy roots need some moisture also in winter. Hardy to about -34°C (USDA zone 4). Protect the bottom of the stems from direct sunlight with plenty of mulch during winter. Cut back the plant some 7 cm above ground level in spring after all frosts.

Last update 29-09-2018
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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.
LARGE PLANTS over 150 cmspecimens, screening and hedging shrubs

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