Rhododendron Graffito INKARHO

Rhododendron Graffito INKARHO

Item: IGRAFF

in stock In stock

Flowering Month:
May-June
Flower Colour:
White & Cream
Height After 10 Years:
125-150cm
Scent:
Not Scented
Interesting Foliage:
No
Hardiness:
Below -20 °C
updown
5 litre
Available stock: 14
£32.95
Currently Unavailable
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12 litre
£59.95
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Available on the Inkarho rootstock! A really striking flower. White with a prominent wine red flare on the upper lobe in late May. This plant is particularly hardy with attractive dark green glossy leaves. Height 150cm in 10 years.

Plant with plenty of good ericaceous compost to aid establishment.

  • Recommended for: Tough with dinstinctive flower and great foliage.
  • Easy to grow.
  • Ideal position: Most garden situations.
  • Habit: Dense.
  • Group: Hybrid Rhododendron.
  • Parentage: 'Madame Jules Porges' (s) X 'Hachmann's Diadem'.
  • Hybridization date: pre 2000 (1984)
  • Bred by H. Hachmann Origin: German.
  • Tolerant of neutral soil.
  • Ideal soil: pH 4 to 7.5.
  • RHS Hardiness Rating: H7.
  • How we propagate this plant: Graft.

Customer Reviews

By on
"Another excellent plant from Millais"
Star Rating 5
By on
"Superb plant. Now growing at a very rapid rate in a neutral soil garden."
Star Rating 5
By on
"Very pleased with this product and with the quick delivery "
Star Rating 5
By on
"All the plants, delivery and service excellent. Thank you."
Star Rating 5
By on
"Lovely strong,heathy plant. Well packed and sent promptly. Very pleased."
Star Rating 5
By on
"Very happy strong and healthy plant."
Star Rating 4
By on
"The plant was received well packaged, well labeled and within the delivery time scale . The plant was in great condition looking very healthy shinny dark leaves, large flower buds with a good root system. I was very satisfied with my order and would recommend Millais Nurseries to supply a high quality Rhododendron plant to anyone. "
Star Rating 5
By on
"My rhodo arrived here in Ireland in perfect condition. Best condition of any plant I've ever purchased from any garden centre. So green & loads of flower buds. True professionals. I will be buying here again. "
Star Rating 5
By on
"Excellent quality plant and value."
Star Rating 5
By on
"lovely plant full of buds and looking very healthy"
Star Rating 5
By on
"Fabulous quality, a good bushy size and prompt delivery"
Star Rating 5

Good to know

These are the plants which we have featured in our recent RHS Chelsea Flower Show exhibits, with extensive reporting on the BBC Chelsea TV programme. Interest from new customers around the country has been exceptional, and gardeners have been delighted to learn that they can now grow their favourite plants on most garden soils.


The revolutionary new ‘Inkarho’ lime tolerant rootstock is particularly recommended for growing rhododendrons on neutral clay soils, up to pH7. This patented rootstock was developed from a rhododendron growing in a German lime quarry, and has been the subject of an extensive 20 year breeding and testing programme. They are grown under licence in Germany, and are some of the few plants that we have to buy in. Choice tall hybrids and compact yakushimanum varieties are grafted on the rootstock enabling them to be grown in a much wider range of soil types than ever before. They are hungry plants and require more feeding than other Rhododendrons to keep their foliage a healthy dark green. We recommend our own recipe Millais Nurseries Slow Release Fertilizer and plenty of good Ericaceous compost for best performance. Failures are rare, but occur when there is insufficient soil preparation, and insufficient feed. Without feed, the plants will start to wither and the foliage will go yellow.

The varieties selected are all tough and will flower from a young age. For a guide to plant spacing, use the height we give in 10 years as a guide to the distance between each plant. Plant no deeper than the top of the rootball, and dig in plenty of good ericaceous compost around the sides. Feed at the rate of a teaspoon of ericaceous slow release fertilizer per plant at the 4 litre size, rising to a tablespoon per plant for a 12 litre plant, and a small handful for a more mature specimen.  For growing in pots, please select the lower growing yakushimanum hybrids, and use good Ericaceous compost 



Please note: Some varieties are wider than their height, especially yakushimanum hybrids. Specimen size plants (eg 80-90cm) will be measured by their largest measurement which could be the spread of the plant.


For further advice, For further advice, see here

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.

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

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.

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