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RHODODENDRON sinogrande
RHODODENDRON SPECIES
The largest leafed rhododendron of all with huge trusses of yellow fading to creamy-white flower with a crimson blush
Further Reading....
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EvergreenVery large oblong to lance-shaped, glossy, dark green leaves to 75cm (30in) long with a smooth silver to buff indumentum beneath
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Cream
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Height10m (33ft)
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Spread10m (33ft)
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Tall ShrubOr small tree. Produces trusses of 20-30 widely bell-shaped flowers 5cm (2in) long marked crimson inside
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Tree
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Hardy - average winterHardy through most of the UK apart from inland valleys, at altitude and central/northerly locations. May suffer foliage damage and stem dieback in harsh winters in cold gardens. Plant can withstand temperatures down to -10°C (14°F)Borderline
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Full sun
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Partial shade
RHODODENDRON sinogrande
- Details
- Description
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional FeaturesBurncoose specialitySee Burncoose Speciality group for more detailsGood to knowIntroduced into UK by George Forrest (1873-1932) in 1913.Pests & DiseasesVine weevils, scale insects, honey fungus, powdery mildew, bud blast.Place of originTibet, China, Burma
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Burncoose SpecialitiesRhododendrons
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Core PlantsRhododendron
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Garden Location/ConditionsWoodland garden
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HardinessFully hardyBorderline
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Pruning groupPruning group 8Suitable for: Wall trained shrubs and less vigorous climbers.
Action: For climbers 'spur prune' by cutting back 3-4 buds of the permanent framework. For wall trained shrubs cut back flowered shoots to within 2-4 buds of permanent framework.
When: Annually after flowers if on previous year's growth, or in late Winter or Spring if on current year's growth.
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Seasonal InterestSpring
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Soil ConditionsFertile moist well-drained soilHumus-richNeutral to acid soilIdeally pH 4.5-6.0
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Toxic - Category CHarmful if eatenPeople and pets, i.e. cats, dogs, rabbits, rodents, tortoises
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Tree ShapeRounded to broadly spreading
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WildlifeRabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
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
10m (33ft)
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10m (33ft) |
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![ACER palmatum dissectum 'Viridis' ACER palmatum dissectum 'Viridis'](https://www.burncoose.co.uk/site/img/products/square/acer_palmatum_dissectum_atropurpureum_viridis_95h.jpg)
ACER palmatum dissectum 'Viridis'
Green cut-leaf maple
Available from £35.00
![ACER pseudoplatanus 'Brilliantissimum' ACER pseudoplatanus 'Brilliantissimum'](https://www.burncoose.co.uk/site/img/products/square/acer_pseudoplatanus_brilliantissimum_131.jpg)
ACER pseudoplatanus 'Brilliantissimum'
Sycamore
![ATHROTAXIS ATHROTAXIS](https://www.burncoose.co.uk/site/img/products/square/arthrotaxus_cupressuss_5458s.jpg)
ATHROTAXIS
![AZALEA - EVERGREEN kaempferi AZALEA - EVERGREEN kaempferi](https://www.burncoose.co.uk/site/img/products/square/azalea_evergreen_kaempferi_453.jpg)
AZALEA - EVERGREEN kaempferi
Available from £15.50
![CERCIDIPHYLLUM japonicum CERCIDIPHYLLUM japonicum](https://www.burncoose.co.uk/site/img/products/square/cercidiphyllum_japonicum~5.jpg)
CERCIDIPHYLLUM japonicum
Katsura tree
Available from £19.00
![CORYLOPSIS sinensis 'Spring Purple' CORYLOPSIS sinensis 'Spring Purple'](https://www.burncoose.co.uk/site/img/products/square/corylopsis_will._spring_purple.jpg)
CORYLOPSIS sinensis 'Spring Purple'
Cowslip bush, Winter hazel
Available from £35.00
![ERIOBOTRYA deflexa ERIOBOTRYA deflexa](https://www.burncoose.co.uk/site/img/products/square/eriobotrya_deflexa_5043x.jpg)
ERIOBOTRYA deflexa
Bronze loquat
![FAGUS sylvatica 'Pendula' FAGUS sylvatica 'Pendula'](https://www.burncoose.co.uk/site/img/products/square/fagus_sylvatica_pendula_1866.jpg)
FAGUS sylvatica 'Pendula'
Weeping beech
Available from £45.00
MAGNOLIA floribunda
![MAGNOLIA sargentiana var robusta MAGNOLIA sargentiana var robusta](https://www.burncoose.co.uk/site/img/products/square/magnolia_sargentiana_var_robusta_2788x.jpg)
MAGNOLIA sargentiana var robusta
Available from £25.00
![PODOCARPUS macrophyllus 'Aureus' PODOCARPUS macrophyllus 'Aureus'](https://www.burncoose.co.uk/site/img/products/square/podocarpus_macrophyllus_aureus_3351a.jpg)
PODOCARPUS macrophyllus 'Aureus'
Buddhist pine, Kusamaki
Available from £18.50
![PSEUDOPANAX laetus PSEUDOPANAX laetus](https://www.burncoose.co.uk/site/img/products/square/pseudopanax_laetus.jpg)
PSEUDOPANAX laetus
Available from £25.00
![QUERCUS acuta QUERCUS acuta](https://www.burncoose.co.uk/site/img/products/square/QUERCUS_ACUTA_02.jpg)
QUERCUS acuta
Japanese evergreen oak
![RHODODENDRON RHODODENDRON](https://www.burncoose.co.uk/site/img/products/square/rhododendron_discolor_5866~2.jpg)
RHODODENDRON
Rose bay
![RHODODENDRON 'Fragrantissimum' RHODODENDRON 'Fragrantissimum'](https://www.burncoose.co.uk/site/img/products/square/Rhododendron_fragrantissimum.jpg)
RHODODENDRON 'Fragrantissimum'
Available from £30.00
![RHODODENDRON arboreum RHODODENDRON arboreum](https://www.burncoose.co.uk/site/img/products/square/rhododendron_arboreum_6448.jpg)
RHODODENDRON arboreum
Available from £45.00
![RHODODENDRON 'Cornish Red' RHODODENDRON 'Cornish Red'](https://www.burncoose.co.uk/site/img/products/square/rhododendron_cornish_red.jpg)
RHODODENDRON 'Cornish Red'
Available from £27.50
![RHODODENDRON 'Emma Williams' RHODODENDRON 'Emma Williams'](https://www.burncoose.co.uk/site/img/products/square/rhododendron_emma_williams_3602x.jpg)
RHODODENDRON 'Emma Williams'
![RHODODENDRON 'J.C. Williams' RHODODENDRON 'J.C. Williams'](https://www.burncoose.co.uk/site/img/products/square/rhododendron_jc_williams_3616.jpg)
RHODODENDRON 'J.C. Williams'
Available from £27.50
RHODODENDRON Matador Group
RHODODENDRON 'Peace'
![SCHEFFLERA pauciflora SCHEFFLERA pauciflora](https://www.burncoose.co.uk/site/img/products/square/schefflera_pauciflora_7981.jpg)
SCHEFFLERA pauciflora
Available from £30.00
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
![](https://www.burncoose.co.uk/site/img/products/squaremedium/Vitax_Q4_6202.jpg)
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
![](https://www.burncoose.co.uk/site/img/products/squaremedium/grow_your_own_front_22.jpg)
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
![](https://www.burncoose.co.uk/site/img/products/squaremedium/tomatoe_front.jpg)
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
![](https://www.burncoose.co.uk/site/img/products/squaremedium/rootgrow_6203.jpg)
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
![](https://www.burncoose.co.uk/site/img/products/squaremedium/RootgrowEricoid_6204.jpg)
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