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RHODODENDRON 'May Day'
RHODODENDRON HYBRIDS
Scarlet
Further Reading....
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EvergreenLarge leaves 15-45cm (6-18in) long.
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RedScarlet -
Height1.5m (5ft) -
Spread1.5m (5ft)
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Medium shrubTypically grow to around 4-6 feet in heightLow growing, spreading habit. Produces loose trusses of slightly pendent, funnel-shaped flowers 7cm (3½in) long
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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) -
Full sunShelter from strong winds -
Partial shadeMaintains colour better in light shade.
RHODODENDRON 'May Day'
- 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 knowR. griersonianum x R. haematodes. Shallow planting is essential
Pests & DiseasesVine weevils, scale insects, honey fungus, powdery mildew, bud blast.
Place of originGarden origin. UK. 1932. AM Williams, Werrington, Cornwall -
Burncoose SpecialitiesCaerhays bred plantsRhododendrons
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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
Oblanceolate
(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.
RHS group 8 -
Seasonal InterestSpringSummer
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Soil ConditionsAcid / ericaceous lovingIdeally pH 4.5-6.0Fertile moist well-drained soilHumus-rich.Neutral to acid soil
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Toxic - Category C
Harmful if eaten(People & Pets) -
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
- 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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1.5m (5ft)
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1.5m (5ft) |
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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
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