Rhododendron Happydendron Pushy Purple INKARHO

Rhododendron Happydendron Pushy Purple INKARHO


unavailable Currently Unavailable

Flowering Month:
Flower Colour:
Bicoloured, Purple & Blue
Height After 10 Years:
Not Scented
Interesting Foliage:
To -15 °C
Currently Unavailable
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5 litre
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Launched by us at the RHS Chelsea Flower Show, and shortlisted as their Plant of the Year 2019!

(H5) Stunning deep reddish purple in bud, opening to pale pink flowers with a prominent green yellow blotch, and feathering to deep mauvey pink edging to the flower. The overall effect is mauvey purple, but really it displays 3 separate and distinct colours. The reddish purple colour fades to mauvey purple, so there's more interest in these substantial flowers every day during flowering in May. The habit is dense and mounded, giving good screening potential.  Height 125-150cm in 10 years.

An excellent and exclusive new variety bred by Holger Hachmann in Germany.

  • Recommended for: Choice and distinctive flowers
  • Easy to grow.
  • Ideal position: Most garden situations.
  • Habit: Dense.
  • Group: Hardy Hybrid.
  • Parentage: unknown
  • Hybridization date: around 2005
  • Bred by: Holger Hachmann. Origin: German.
  • Ideal soil: pH 4.5 to 6, tolerating up to pH7.5
  • RHS Hardiness Rating: H6.
  • How we usually propagate this plant: Graft.


Customer Reviews

By on
"I have a lot of rhododendrons I'm my garden as I'm a big fan and this one is a great addition because it's so striking. It flowered not long after receiving it and they are huge, very different in colour to any other I know. It arrived super quickly and well packaged. The plant was a good size and looks strong enough though some of the leaves were quite yellow and crinkled. I've given it some rhododendron feed and planted it up in ericaceous compost (although apparently this variety doesn't need to be) and hopefully it will improve now in the ground. Definitely recommend."
Star Rating 4
By on
"Plant arrived in spanking good condition, it appears to have flower buds, I will review later after it has survived a harsh winter, and has hopefully flowered as shown on the web site"
Star Rating 5
By on
"Excellent plant"
Star Rating 5
By on
"Excellent plant"
Star Rating 5
By on
"I bought two of the inkharo rhododendron plants from Millais nurseries. Both arrived in perfect condition and have immediately followed and out on nice healthy looking growth."
Star Rating 5
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"Arrived on time, Good condition, Very good plant i am very satisfied."
Star Rating 5
By on
"Absolutely lovely. Excellent quality and packaged well "
Star Rating 5
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"Absolutely fabulous plant and as always from Millais excellent quality Fabulous colours and flowered well this year, not yet really much of a scent but for its first season very impressive "
Star Rating 5
By on
"Dear Team You never let me down. The plant was great.. My husband is a Sunderland fan so you might be hearing from us very soon. Take Care and Stay Safe. Jean."
Star Rating 5
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"Very happy with purchase. The flowers are stunning and the colour of the flowers are as advertised."
Star Rating 5
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Star Rating 5
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"Millais Nurseries are always fantastic! They are the answer to those of us with alkaline soil but who love Rhododendrons. Thanks to them, I now have 20 lime tolerant Rhododendrons growing in my gardens in Dorset, starting 4 years ago. My latest addition arrived promptly, very well packaged and in perfect condition. It has been in a garden bed for a month or so now, and is looking very happy. Can't wait for the multi-coloured flowers. Millais Nurseries have always been first-class in every way. I'll be back for more..."
Star Rating 5
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"Excellent all round. Fabulous quality and great service. Thank you so much"
Star Rating 5
By on
"Excellent customer service... arrived wonderfully packed and already has the most stunning flowers on it. A massive hit for my Dad's Birthday Thank You"
Star Rating 5
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"Received with in good time of ordering. Its hasn't opened yet but I'm looking forward in seeing it. Fell in love with this at Chelsea in 2019 when it was launched. Definitely will be ordering again from this company in the near future. "
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.


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

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