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RHODODENDRON
Scented Rhododendrons suitable for conservatory or cool greenhouse are marked with an asterisk.
Syn. Azalea.
Genus of more than 1000 species of evergreen and deciduous trees and shrubs from Europe, Asia, Australasia and North America, particularly southwestern China, Tibet, Burma, northern India and New Guinea.
Evergreen rhododendrons vary greatly in size and usually have bell-shaped flowers with 10 stamens.
Azaleas have smaller, thinner leaves and are generally medium-sized shrubs with smaller, funnel-shaped flowers with, usually, 5 stamens.
The problem rhododendron, vigorous hybrids of R. ponticum, which is colonizing large areas has been given the name R x superponticum and is subject to EU legislation under the "Invasive Alien Species Regulation".
Garden location should have suitably acidic soil.
Further Reading....
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EvergreenWrinkled, dark-green leaves 5-10cm (2-4in) long.
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White -
Height2.5m (8ft) -
Spread2.5m (8ft)
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Medium shrubTypically grow to around 4-6 feet in heightStraggly shrub. Produces trusses of 2 or 3 broadly funnel-shaped flowers 6-15cm (2½-6in) across.
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Half hardy - unheated greenhouse / mild winterHardy in coastal and relatively mild parts of the UK except in severe winters and a risk from sudden (early) frosts. May be hardy elsewhere with wall shelter or good micro-climate. Likely to be damaged or killed in cold winters. Plant can withstand temperatures down to -5°C (23°F) -
Partial shadeLight shade
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Burncoose specialitySee Burncoose Speciality group for more details
Good to knowSyn. R. bullatum. Epiphytic shrub (plant that grows on another plant without obtaining food from it). Can be grown on decaying tree stumps, mimicking its natural situation or in a container with orchid medium. Foliage resistant to vine weevils.
Pests & DiseasesVine weevils, whiteflies, scale insects, caterpillars, aphids, honey fungus, powdery mildew, bud blast.
Place of originEastern Himalayas. Collected by JD Hooker in Sikkim in 1849. -
Burncoose SpecialitiesRhododendrons
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Core PlantsRhododendron
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HardinessFrost hardy (down to -5)
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Leaf margin
Entire(see photos above) -
Leaf shape
Elliptic
(see photos above)
Ovate(see photos above) -
Pruning group
Pruning group 5Suitable for: Evergreen shrubs that require minimal pruning.
Action: Trim or lightly cut back shoots that spoil symmetry. Deadhead regularly.
When: Annually after flowering.
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Scented PlantsScented flowersScented Rhododendrons
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Seasonal InterestSpring
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Soil ConditionsAcid / ericaceous lovingIdeally pH 4.5-6.0Medium to light, fertile, well drained soilRequires coarse medium with sharp drainage
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Toxic - Category C
Harmful if eatenPeople and pets, i.e. cats, dogs, rabbits, rodents, tortoises -
WildlifeRabbit Resistant
Cold weather damage to evergreen plants
Rhododendron - Care Guide
- Dead Heading
- Dead Heading - Video Tip ondemand_video
- Pruning
- Pruning - Video Tip ondemand_video
- Dwarf Rhododendrons for smaller spaces - Video Tip ondemand_video
- Weed Killing
- Pests and Diseases
- Drought issues - Video Tip ondemand_video
- Honey Fungus - Video Tip ondemand_video
- Maintenance - fallen tree - Video Tip ondemand_video
- General Pictures
- Further Reading
- Planting out rhodies - Video Tip ondemand_video
Rhododendron - Propagation
- Growing from seed
- Rhododendron Seed Collecting - Video Tip ondemand_video
- Potting on Rhododendron seedlings - Video Tip ondemand_video
- Propagation Program - Video Tip ondemand_video
- Growing from cuttings
- Propagation by taking semi-ripe cuttings - Video Tip ondemand_video
- Propagation by layering - Video Tip ondemand_video
- Propagation by other means
- Making a hybrid - Video Tip ondemand_video
- Making a hairy or scaly cross - Video Tip ondemand_video
- Caerhays bred 'Red Centurian'
Rhododendron - Video Spotlights
- R. augustinii, edgeworthii x leucaspis, 'Anne Teese', loderi 'King George' - Video Tip ondemand_video
- Rhododendron 'Cilpinense' - Video Tip ondemand_video
- Rhododendron decorum (pink form) - Video Tip ondemand_video
- Rhododendron genestrianum - Video Tip ondemand_video
- Five late flowering rhodies - Video Tip ondemand_video
- R. loderi 'King George' - Video Tip ondemand_video
- R. niveum - Video Tip ondemand_video
- R. 'Ostara' - Video Tip ondemand_video
- Rhododendron ‘Pink Polar Bear’ - Video Tip ondemand_video
- Scented Rhododendrons - Video Tip ondemand_video
Shrubs and Trees - Seeds - 1) Collecting Seeds
- When is the right time to collect seeds?
- When are seeds actually ripe and ready for collection?
- Magnolia seed collection - Video Tip ondemand_video
- Cornus capitata seed collection - Video Tip ondemand_video
- Lithocarpus Seed Collection - Video Tip ondemand_video
- Rhododendron seed collecting - Video Tip ondemand_video
- Camellia seed collection - Video Tip ondemand_video
Shrubs and Trees - Seeds - 2) Storing Seeds
- Storing seeds over winter
- Embothrium Collecting and Storing Seeds
- Decaisnea Seed Collection & Potting
Shrubs and Trees - Seeds - 3) Planting Seeds
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2.5m (8ft)
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2.5m (8ft) |
CAMELLIA 'Anticipation Variegated'
HEATHERS Calluna vulgaris 'Spring Torch'
Ling, Scots heather
Available from £4.50
MAGNOLIA 'Ann'
MAGNOLIA sargentiana var robusta
Available from £25.00
RHODODENDRON
Rose bay
RHODODENDRON 'Saffron Queen'
Available from £30.00
RHODODENDRON impeditum
RHODODENDRON leucaspis
RHODODENDRON 'Sir Charles Lemon'
Available from £24.00
RHODODENDRON 'Van Nees Sensation'
Buy Varieties of RHODODENDRON
RHODODENDRON SCENTED
RHODODENDRON 'Bert's Own'
highly scented creamy-white flowers
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON 'Countess of Haddington'
scented white flowers flushed pale pink
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
also Large
Gift-wrapping available
£40.00 each
RHODODENDRON crassum
late scented white
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON formosum
Semi-dwarf rhododendron. (Syn. Gibsonii) - white striped pink,lightly scented
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON 'Fragrantissimum'
probably the most highly scented rhododendron, large white flowers tinged pink. Our choice as the best rhododendron for the conservatory or cool greenhouse
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON 'Harry Tagg'
fragrant white flowers tinged pink
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON johnstoneanum
creamy-white scented
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON 'Lady Alice Fitzwilliam'
pink buds opening white, scented
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON lindleyi
a straggly upright habit but one of the most beautiful and scented rhododendrons when in flower. Pure white in trusses of 3 or 5 flowers
RHODODENDRON 'Michael's Pride'
strong yellow in bud fading to cream when fully open
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON moupinense
flowers white or pink with a sweet scent
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00
RHODODENDRON polyandrum
white scented
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON 'Princess Alice'
white flushed pink, fragrant
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
RHODODENDRON 'Saffron Queen'
canary-yellow, bushy habit
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
Large
Gift-wrapping available
£45.00 each
RHODODENDRON 'Tinkerbird'
white flowers flushed pink. Scented
Gift-wrapping available
MULTIBUY Any 3+ £25.00 each
£30.00 each
Useful extras...
Fertilisers & Feeds - Levington
Sulphate of Iron
Boosts soil acidity.
Feeds ericaceous plants and helps prevent moss.
Corrects leaf yellowing caused by iron deficiency.
Easy to use, low dust granules
Only £11.00
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00
Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00
Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.
It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50
