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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".
Further Reading....
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EvergreenMedium-sized leaves 5-15cm (2-6in) long.
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PurpleShades of purple/mauve/lilac/violetMauve, with brown-crimson flashes inside. -
Height4m (13ft) -
Spread4m (13ft)
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Tall ShrubDome-shaped shrub. Long-lasting trusses of funnel-shaped, wavy-margined flowers 5-7cm (2-3in) long.
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Hardy - very cold winterHardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F) -
Full sunShelter from strong winds -
Partial shade
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Good to knowAn excellent substitute for ponticum, the wild variety which is invasive. Fast-growing. Ideal for hedging or screening.
Pests & DiseasesVine weevils, scale insects, honey fungus, powdery mildew, bud blast.
Place of originGarden origin. Belgium. Francoisi brothers. Pre. 1846. -
HardinessFully hardy
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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.
RHS group 8 -
Seasonal InterestSpringSummer
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Soil ConditionsFertile moist well-drained soilHumus-richNeutral to acid soilIdeally pH4.5 - 5.5
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Toxic - Category C
Harmful if eaten(People & Pets) -
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
- Weed Killing
- Pests and Diseases
- 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 by taking semi-ripe cuttings - Video Tip ondemand_video
- Growing from cuttings
- 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
- 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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4m (13ft)
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4m (13ft) |
Buy Varieties of RHODODENDRON
RHODODENDRON HYBRIDS
RHODODENDRON 'Taurus'
strong red with darker markings
Gift-wrapping available
MULTIBUY
Any 3+ £21.50 each
£24.00 each
RHODODENDRON 'Tinkerbird'
white flowers flushed pink. Scented
RHODODENDRON 'Titian Beauty'
Semi-dwarf rhododendron. Geranium red yak. hybrid
RHODODENDRON 'Tortoiseshell Orange'
deep orange flowers late in the season
Large only
Gift-wrapping available
£35.00 each
RHODODENDRON 'Viscy'
pale amber-orange with spotted throat
Gift-wrapping available
MULTIBUY
Any 3+ £21.50 each
£24.00 each
RHODODENDRON 'Wee Bee'
Dwarf rhododendron. Tubular, frilled rose-pink flowers with red spots
RHODODENDRON 'Wine and Roses'
stunning foliage, pink to red on the back of the leaf and new growth, bronze. Profuse pink flowers and compact habit
RHODODENDRON 'Winsome'
salmon, bushy habit
Gift-wrapping available
MULTIBUY
Any 3+ £21.50 each
£24.00 each
RHODODENDRON 'Yellow Hammer'
a Caerhays hybrid with tubular bell-shaped yellow flowers. Normally flowers a second time in the autumn
Gift-wrapping available
MULTIBUY
Any 3+ £21.50 each
£24.00 each
INKARHO LIME TOLERANT RHODODENDRONS
RHODODENDRON 'Blue Peter' INKARHO
violet paling to white
RHODODENDRON 'Gomer Waterer' INKARHO
white flushed mauve
RHODODENDRON 'Marcel Menard' INKARHO
deep purple-violet flowers with greenish speckling in the throat
Gift-wrapping available
£45.00 each
RHODODENDRON 'Nova Zembla' INKARHO
deep red flowers with a conspicuous dark blotch
Gift-wrapping available
£45.00 each
Useful extras...
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
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
Fertilisers & Feeds - Empathy
Ericaceous Liquid Seaweed Fertiliser
Specially developed organic concentrated seaweed feed for ericaceous plants that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants,
Perfect used in conjunction with Rootgrow™ Ericoid.
Only £7.50
Garden Goodies
Slate Plant Labels
These wonderfully tactile natural slate plant labels are hand made in Cornwall and come with a chalk pen.
Just stick them in your pot or border. Pack of 6.
Only £10.20
Garden Goodies
Slate Tie-on Plant Labels
Hand made in Cornwall, these delightful natural slate labels are perfect for pots.
Comes with chalk pen. Pack of 5
Only £10.20
