Cornus Ruth Ellen

Cornus Ruth Ellen

Item: CORUTH

in stock In stock

Flowering Month:
April-May
Flower Colour:
White
Hardiness:
To -15 °C
Height After 10 Years:
200-400cm
Scent:
Not Scented
Interesting Foliage:
Yes
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Cornus x rutgeriensis 'Ruth Ellen' is a hybrid flowering dogwood, a cross between Cornus florida, found in South-eastern United States, and Cornus kousa, from China. It was developed as one of the 'Stellar' dogwoods bred at Rutgers University in New Jersey.

It is vigorous and will form a large shrub, or small tree in time, the rate of growth being determined by soil fertility and the availability of moisture. Eventual height is likely to be in the range of 4-6m, and generally wider than it is tall, so plant with plenty of room for future growth.

'Ruth Ellen' produces exceptionally numerous large-bracted flowers from a young age during April to May, the bracts being pure white whilst the true flowers being insignificant and yellowish-green. Ruth Ellen is also sterile so will not produce fruit, but on the other hand will put a lovely display of autumn colours, as the leaves turn to rich tones of plum purple.

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 varieties. Avoid waterlogged sites.

Pruning

Not normally required. Tidy wayward shoots after flowering. Evergreen azaleas and Bloombux can be clipped into a low hedge.

Deadheading

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


For further advice see here

Size Guide

Size guide

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