Millais Nurseries
Rhododendron suoilenhense (seedlings from CWT 6498)
Item: SSUO
In stock
April
White
To -10 °C
150-175cm
Not Scented
Yes
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Picture of a 3 litre plant for illustrative purposes only
(GRANDIA H4-5) Recently collected from Vietnam. Creamy white campanulate flowers with maroon basal flashes, in a rounded truss, April. Large foliage with indumentum on older leaves. Early intoductions to the UK have produced tall, majestic and fast growing trees when grown in good conditions. Height 150-175cm in 10 years. Requires moist acid soils.
First introduced by Alan Clark and Keith Rushforth in 1992, collected in Lao Cai province, Vietnam. Growing between 2200-3140 metres, mature plants reach heights of 12 metres. CWT6498 was collected by Alan Clark, Hannah Wilson and Jamie Taggart in North East Vietnam, 2011. We are pleased to offer seedlings from one of the first plants to flower in the UK.
Flowers are broadly tubular campanulate, 8 lobed, in a truss of 15 flowers. One of the distinguishing features of R. suoilenhense is the juvenile foliage differing from the foliage of a mature flowering plant. Juvenile foliage is widely oblong, rugose, chartaceous (papery) and glabrous, with a wavy appearance. Mature leaves are elliptic to oblanceolate, dark green, shiny and almost flat, with a suede like brown unistrate indumentum on the lower surface, and measure 20-35cm long by 9-16cm broad, with a rounded apex. Petiole is round.
Customer Reviews
The Basics
Ideal soil
Acidic soil, good organic content, pH 4.5-6.0. Inkarho range of rhododendrons will tolerate soils up to pH7.5
Sun or Shade
Light dappled shade is best for most varieties.
Shelter
Refer to hardiness rating. Give young plants protection.
Site Selection
Avoid close to trees, roots, invasive weeds, walls, hot patios, dry banks and waterlogged soils. Do not use weed matting or stone mulch.
Plant spacing
Use the height shown in 10 years as a guide to the distance between each plant. Allow room for plant to fill out. If planting closer for instant impact, be prepared to move plants after a few years.
Compost
- 3 litre pot, dig in 10-20 litres of ericaceous compost.
- 7.5 litre pot, dig in 20-30 litres of ericaceous compost.
- 70-80cm specimen, dig in 60 litres of ericaceous compost.
- 100-120cm specimen, dig in 120 litres of ericaceous compost.
Planting depth
Plant high in the ground, with the top of the rootball visible.
Feeding
Slow-release ericaceous feed recommended in March and straight after flowering.
Mulch
Recommended every few years.
Water
The key ingredient! Keep moist all season, especially the critical time at end of June for flower bud initiation. Tap water is better than no water. Heavy dose at least once per week in dry weather.
Drainage
Ensure good drainage in winter, especially with yellow flowering varieties. Avoid waterlogged sites.
Pruning
Rhododendrons and Camellias: Not normally required. Tidy wayward shoots after flowering.
Evergreen azaleas and Bloombux can be clipped into a low hedge.
Magnolias and Acers: Formative pruning when young to shape into a tree or bush.
Deadheading
Remove old flower-heads, particularly on young or weak plants.
For further advice see here
Size Guide
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***Please note we do not deliver outside of EU***
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