Rhododendron augustinii 'Bowood Blue'

Rhododendron augustinii 'Bowood Blue'


unavailable Currently Unavailable

Flowering Month:
Flower Colour:
Purple & Blue
Height After 10 Years:
Not Scented
Interesting Foliage:
To -15 °C
Currently Unavailable
email me when in stock
3 litre
Currently Unavailable
email me when in stock
7.5 litre
Collect in Store

This item is available for collection.

Home Delivery

UK mainland delivery from £8.95

(H5)  A most beautiful shrub, with large almost blue flowers.  April - May.  Upright bushy habit.  Some protection required for first two winters.  Height 150-175cm in 10 years. 

 This is one of Lord Lansdowne's favourite augustinii clones from his spectacular Rhododendron collection at Bowood House.  We are privileged to be the first nursery to offer this selection.  It is a superb blue colour and we find it grows more bushy and with a better habit than any other clone.


  • Recommended for it's striking purple flower.
  • Easy to grow.
  • Ideal position: sheltered, dappled shade.
  • Habit: upright.
  • Group: Small Leaved Rhododendron.
  • Subsection: Triflora.
  • Introduction date: pre 1900 (1890).
  • Species distribution: augustinii distribution:Hubei, W Sichuan, E & SE Tibet, NW Yunnan.
  • Approximate altitude: 1,300-3,400m
  • Ideal soil: pH 4.5 to 6.0
  • RHS Hardiness Rating: H5.
  • How we usually propagate this plant: Cutting.
  • Awards: RHS Award of Garden Merit.

Customer Reviews

By on
"A splendid well grown plant"
Star Rating 5
By on
"Super easy, hassle free, fast ordering and shipping. Arrived quickly and well protected."
Star Rating 5
By on
"Happy with quality of plant"
Star Rating 4
By on
"Plants arrived in excellent condition from your nursery, and I ordered more of the same plus some other varieties this year. This is one of my favorite plants and I look forward to seeing it flower soon."
Star Rating 5
By on
"A splendid plant! It is quite large, clearly showing last season's vigorous growth. Very well branched and bushy for an 'augustinii'."
Star Rating 5
By on
"Nice upright plant"
Star Rating 4

Size Guide

Size guide

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

Delivery & Returns

Our website calculates the delivery charge according to weight and delivery location throughout the UK. To see these charges, please enter your postcode at the checkout, and you will see the charge vary as you add more items to your wheelbarrow.

Please see here for delivery information

Please see here for cancellation and return information