Rhododendron Onkel Dines

Rhododendron Onkel Dines

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Flowering Month:
Flower Colour:
Below -20 °C
Height After 10 Years:
Interesting Foliage:
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This Plant has beautiful soft pink lightly scented flowers, with orange/yellow markings on the upper lobe concentrated near the centre of the flower. Flowering period is late May early June.
A plant that has lush light green foliage, grows wider than tall, but still grows to a good height (approx. 125 – 150cm in ten years) is very popular in Denmark where it was bred and named after a member of the Poulsen Family.

• Recommended for: low level hedging/screening.
• Easy to grow.
• Ideal position: Most garden situations/ Will tolerate full sun
• Habit: Dense.
• Group: Hybrid Rhododendron.
• Parentage: 'Pink Pearl' × 'Catawbiense Grandiflorum'
• Hybridization date: pre 2000 (1935)
• Bred by: D. Poulsen. Origin: Denmark.
• Ideal soil: pH 4.5 to 6.
• RHS Hardiness Rating: H7.
• How we usually propagate this plant: Grown under license.

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.


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.


  • 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.


Slow-release ericaceous feed recommended in March and straight after flowering.


Recommended every few years.


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.


Ensure good drainage in winter, especially with yellow flowering varieties. Avoid waterlogged sites.


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.


Remove old flower-heads, particularly on young or weak plants.

For further advice see here

Size Guide

Size guide

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