Rhododendron Shilsonii 'Bowood'

Rhododendron Shilsonii 'Bowood'

Item: HSHILSB

in stock In stock

Flowering Month:
March
Flower Colour:
Red
Hardiness:
To -15 °C
Height After 10 Years:
150-175cm
Scent:
Not Scented
Interesting Foliage:
No
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£26.95

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(H5) Flat topped trusses of clear crimson flowers in March. An upright tree-like plant with attractive smooth peely bark on mature stems, and dark rounded foliage. Height 150-175cm in 10 years.

This is an historic plant dating from before 1900, and raised by the famous hybridizer Richard Gill, Head Gardener of Tremough, Cornwall. A cross between R. thomsonii and R. barbatum. This clone was obtained through the kindness of Lord Lansdowne at Bowood Gardens.

Received RHS Award of Merit in 1900.

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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