Rhododendron (Yakushimanum) 'PRINCIPESSA'

Rhododendron (Yakushimanum)
Rhododendron (Yakushimanum) 'PRINCIPESSA'
rhododendron
SIZE/TYPE medium-sized shrub
USUAL HEIGHT 0.6-1m
USUAL WIDTH 0.6-1m
LEAVES evergreen broadleaf
COLOUR OF LEAVES green
FLOWERS showy
COLOUR OF FLOWERS kombinovaná:white a pink a red
BLOOMING TIME May - May
LOCATION full to partial sun
USDA zone (lowest) 6   (down to -23°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 Rhododendrons, azaleas, and mountain laurels
Evergreen broadleaf
náhled fotonáhled fotonáhled foto
Yakushimanum rhododendrons were first discovered in early 1900’s on a small island off southern coasts of Japan called Yaku. They grew happily on rocky slopes of this mountainous island in full sun, and were constantly disturbed by wind. Their habit was compact and not very tall. All these features seemed very promising and deserved better examination. The first plants were sent to the UK by a Japanese grower Koichiro Wada in 1934, which set off a long programme of hybridizing brand new, fantastic plants.

Principessa is a delicate and gorgeous yakushimanum rhodododendron bred by Frank Fujioka in Washington, USA. You must fall in love with its large, baroque-skirt-like flowers with frilled margins. They open from rich pink buds, getting paler as they unfold, maturing to almost white. Their uniqueness is sealed with a rich cherry red eye in the centre, marked on all 5 petals, exactly like the hibiscus flowers have. If you are after romantic flowers you must have one of these. Evergreen leaves are leathery, lanceolate to elliptic, mid green, and partly glossy. The plant grows uniformly into a compact shrub of almost the same height and width of about one meter.

Tests proved that deadheading of these hybrids does not influence formation of flower buds for the following season. However, as these plants are slow growers and make short new branches, deadheading significantly improves their appearance since the new shoots cannot cover the unsightly dry seed-pods that followed the flowers.

Yakushimanum rhododendrons grow slowly, forming compact mounds. Their mature leaves usually have indumentum of various colours on the undersides. They thrive in full sun and partial shade, they can take full shade, too, but is not ideal. The soil has to be reasonably fertile, well-drained, cool, constantly moist, and of low pH (6 or less) = acidic. They do not require nitrogen but need iron and phosphorus. Their roots spread outwards and are very shallow, therefore never plant them too deep. When planting mix good, lime-free compost with quality peat or leaf mould, and add some slow-release fertilizer. To conserve moisture and to suppress weeds keep them mulched all year round. The layer of mulch should not be too high so that their delicate roots can breathe. No pruning required. So far Principessa proved hardy to -24°C (USDA zone 6), and is expected to withstand a few degrees lower.

Last update 25-01-2017
SIZES and PRICES
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view item form pot size quality price (incl. VAT) where in stock sending options quantity
Rhododendron (Yakushimanum) 'PRINCIPESSA' height 15-20 cm
STANDARD
CHLUMEC BY POST
Rhododendron (Yakushimanum) 'PRINCIPESSA' height 20-25 cm, width 20-30 cm
STANDARD
CHLUMEC BY POST

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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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