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Type / Family: Perennial. Genus of the heather family (Ericaceae)
Care: Low. If the location is right easy
Foliage: rhododendron evergreen, azaleas mostly deciduous. Strong rich green, z.T. variegated, shiny leaves
Growth: Compact to bulky growth. Flachwurzler
Height: 60 to 200cm
Environment: Partially cloudy. Likes to have some sun, but not the full midday sun. Nutrient-rich, moist, acid soil (pH 3.5 to 5 is ideal, not over 6). It is best to use peat soil (rhododendron earth) as it is sour, airy and loose
Planting time: planting hole three times as wide and twice as high as root bales of plant planting, as high as before in the container and fill with special rhododendron soil (see also transplanting below)
Cut: No pruning required. If necessary, rhododendron can also be radically cut back, not cutting azaleas
Partner: Alpine Forget-me-not
Provide special rhododendron fertilizer in early April and mid to late June. Do not pour me tap water as it is very sensitive to lime. Blow off immediately after blooming, but do not damage the buds below for next year. Therefore only break out, do not cut away
Not all types and varieties of azaleas are sufficiently hardy. Make sure when buying or / and cover with fleece in heavy frost. Rhododendron is absolutely hardy
Illnesses / diseases:
Does not bloom: The reason is usually that in the previous year was not broken off. In connection with discarded leaves, the plant is usually too dark
Leaves become yellow and wavy: mostly signs of too much dryness; water
Buds do not bloom or are covered by a suggestive web: If the inner part is muddy when opened by hand, this indicates a fungus; Cut buds and discard, do not compost
Buds do not bloom but turn black or dry up: they are often frostbitten or attacked by a fungus or pest; Cut buds and discard, do not compost as a precaution
Killed from the base: rejuvenate (see also below Rejuvenate)
Leaf-dropping rhododendrons are called azaleas
Indigenous to Asia, where it is considered a lucky symbol
Came about 200 years ago from China to Europe
If the soil is too chalky, certain nutrients (such as iron) can not be absorbed; Acidic special fertilizer helps
Use only low-limp water (preferably rainwater) for pouring
Should not be missing in any garden, as many varieties also leaves are a feast for the eyes
New rhododendron hybrids. Here, proven good flowering varieties were placed on a good growing surface. This rootstock is very well rooted and lime-tolerant, however, so the new hybrid varieties have the benefits of the old varieties in terms of flowering and leaves but thrive on any normal garden soil and are robust. They should grow slightly faster than normal varieties and be more floriferous. The Inkarho rhododendrons have their own trademark indicating the refinement
Japanese Azalea - Rock Garden Azalea - Japanese Free Range Azalea (Rhododendron obtusum)
Rarely gets higher than 100cm. Blooms from May to June with medium sized flowers in red, yellow, white, pink or orange. Compact growth, evergreen. Heard in the Japanese and the rock garden. Can also be pulled as a high stems
Deciduous Azalea (Rhododendron luteum)
Height 80-200cm. Blooms from May to June with fragrant flowers in yellow, pink or orange. Bulky spreading growth, which is not to change even by cutting. Summer green. Compares lime better than the other rhododendron species. Absolutely hardy. Wild species, also called deciduous azalea. It used to have the botanical name Azalea pontica
Zimmerazales are the most popular potted plants for the winter months. In Germany more than 500 varieties in different sizes as well as growth forms and flowers are on offer.
When buying, make sure that the leaves have a strong rich green color and about 50% of the buds are already beginning to show color.
Respond to waterlogging and dryness very sensitive. It is best to immerse pots in water twice a week until no more bubbles are released and excess water drains off. Otherwise quite undemanding. Hibernate bright and cool, so the flowers last longer than in heated rooms
Alfred: Rhododendron. Flowers in dark pink with medium sized leaves
'Baden-Baden: dwarf rhododendron. Height 60cm. Blooms April / May with bright red flowers
'Blue Tit Major: rhododendron. Wild species. Height 40cm, 50cm wide. Blooms from April to May in blue
'Diadem: Rhododendron.Flowers in bright pink with dark center
'Geisha orange: Japanese azalea. Captivates with small bright orange flowers sitting in dense clumps
'Dawn: Rhododendron. Strong pink flowers with small medium green foliage
'Palestrina: Japanese azalea. Pure white flowering
'Scintillation: Rhododendron. New breed with delicate pink flowers and long narrow leaves in bright medium green
'Toreador: Japanese Azalea. Flowers in strong pink
'Windsor Sunbeam: Summer green azalea. Delighted with bright yellow flowers
'Wren: Dwarf rhododendron. Height 80cm, width 100cm. Blooms from mid to late May in bright yellow
If the rhododendron gets too much or too little sun in its place and therefore grows poorly or it should simply be planted elsewhere, it can be easily transplanted, as the root bales are very compact and a complete excavation almost even in older plants easily possible.
In order to get used to its new location better the root ball should be as large as possible and some fertilizer and bark compost should be filled into the excavated plant hole. The bale surface should not be covered at all or only with little soil. If he is set too low he is difficult or impossible to get out again.
Just cut back plants do not tolerate a conversion, here should be maintained
Rhododendrons are prone to balding from the base in old age and can then be rejuvenated by a vigorous pruning.
In early spring around March, the plant is cut back on a frost-free dry day to about 30-50cm. After pruning, the rhododendron needs a portion of slow-release fertilizer to better drive out new. The root area should then be mulched with bark mulch or semi-mature compost, with the mulch layer at least 2-3 cm thick.
In the new shoot, the longest shoots are each cut in half again to branch better.
If the rhododendron is freshly trimmed, it should not be implemented, as both cost too much power and he might not be able to survive that.