Hibiscus x 'SUMMER STORM'

Hibiscus x
Hibiscus x 'SUMMER STORM'
swamp mallow, hardy hibiscus
SIZE/TYPE mid-sized perennial
USUAL HEIGHT 0.6-1m
USUAL WIDTH 0.5-1m
LEAVES deciduous broadleaf
COLOUR OF LEAVES burgundy red
FLOWERS showy
COLOUR OF FLOWERS kombinovaná:white a pink
BLOOMING TIME July - September
LOCATION full sun
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 Perennials
Summer blooms
Exotics
náhled fotonáhled 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.

Summer Storm is another modern variety of swamp mallow hybrid. It bears very large flowers – up to 20 cm across, light pink with rosy red veins and a striking burgundy red eye. They are borne on 60-100 cm long stalks from midsummer until early autumn. The leaves are very attractive, too, they are deeply lobed, dark purple red and look like giant replica of Japanese maple leaves. They turn fiery orange and yellow before they fall down.

The plant is dependent on regular water 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.

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 permeable, never let it dry out in summer. Hardy to about -30°C (USDA zone 5), probably a bit more. Cut back the plant only a few centimetres above ground level in spring. Mulching will help the plant retain moisture also in winter months.

Last update 17-06-2011
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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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