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Rhododendron - .

Common Name
Family Ericaceae
USDA hardiness Coming soon
Known Hazards Although no specific mention of toxicity has been seen for this species, it belongs to a genus where many members have poisonous leaves. The pollen of many if not all species of rhododendrons is also probably toxic, being said to cause intoxication when eaten in large quantities[183].
Habitats Not known in the wild.
Range A hybrid of garden origin, R. minus x R. dauricum[200].
Edibility Rating    (0 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (0 of 5)
Care (info)
Moist Soil Semi-shade Full sun
Rhododendron


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Rhododendron
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Summary


Physical Characteristics

 icon of manicon of shrub
Rhododendron is an evergreen Shrub growing to 3 m (9ft 10in). The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid soils and can grow in very acid soils.
It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

UK Hardiness Map US Hardiness Map

Synonyms

Plant Habitats

Edible Uses

None known

References   More on Edible Uses

Medicinal Uses

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None known

References   More on Medicinal Uses

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Other Uses

Plants can be grown as a hedge[200].

Special Uses

References   More on Other Uses

Cultivation details

Succeeds in most humus-rich lime-free soils except those of a dry arid nature or those that are heavy or clayey[1]. Prefers a peaty or well-drained sandy loam[1]. Succeeds in sun or shade, the warmer the climate the more shade a plant requires[200]. A pH between 4.5 and 5.5 is ideal[1, 200]. This is an exceptionally hardy cultivar[200]. Succeeds in a woodland though, because of its surface-rooting habit[200], it does not compete well with surface-rooting trees[1]. Plants need to be kept well weeded, they dislike other plants growing over or into their root system, in particular they grow badly with ground cover plants, herbaceous plants and heathers[200]. Plants form a root ball and are very tolerant of being transplanted, even when quite large, so long as the root ball is kept intact[200]. Plants in this genus are notably susceptible to honey fungus[200].

References   Carbon Farming Information and Carbon Sequestration Information

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Plant Propagation

Seed - best sown in a greenhouse as soon as it is ripe in the autumn and given artificial light. Alternatively sow the seed in a lightly shaded part of the warm greenhouse in late winter or in a cold greenhouse in April. Surface-sow the seed and do not allow the compost to become dry[200]. When they are large enough to handle, prick out the seedlings into individual pots and grow them on in a lightly shaded position in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Layering in late July. Takes 15 - 24 months[78]. Cuttings of half-ripe wood, August in a frame. Difficult[78].

Other Names

If available other names are mentioned here

Native Range

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Rhododendron anthopogon Shrub0.6 6-9  LMSNM121
Rhododendron arboreum Shrub12.0 6-9  LMSNM123
Rhododendron aureumRosebayShrub0.5 -  LMSNM02 
Rhododendron campanulatum Shrub4.5 4-8  LMSNM012
Rhododendron ferrugineumAlpenroseShrub1.5 4-8  LMSNM013
Rhododendron griersonianum Shrub3.0 7-10  LMHSNM003
Rhododendron indicumRhododendronShrub2.0 5-9  LMSM103
Rhododendron japonicumJapanese azaleaShrub2.0 4-8  LMSNM11 
Rhododendron kaempferi Shrub2.5 4-8  LMSM103
Rhododendron lapponicumLapland RosebayShrub1.0 -  LMSNM10 
Rhododendron lutescens Shrub3.0 6-9  LMSNM002
Rhododendron luteumHoneysuckle AzaleaShrub2.5 4-8  LMSM002
Rhododendron maximumRosebay Rhododendron, Great laurelShrub3.5 3-7  LMSM012
Rhododendron molleChinese AzaleaShrub2.5 6-9  LMSM011
Rhododendron mucronulatum Shrub2.5 4-8  LMSNM10 
Rhododendron periclymenoidesPink azalea, Pinxter flowerShrub2.0 4-8 MLMHFSNDM102
Rhododendron 'PJM' Shrub3.0 -  LMSNM00 
Rhododendron ponticumRhododendronShrub5.0 6-9  LMSM012
Rhododendron x praecox Shrub1.5 5-9  LMSNM003

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

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Subject : Rhododendron  
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