Millais Nurseries
Rhododendron Happydendron Pushy Purple INKARHO
Item: IHAPP
In stock
May
Pinky/Mauve, Purple
To -15 °C
125-150cm
Not Scented
No
Collect in Store
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UK mainland delivery from £8.95
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
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
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
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