INKARHO Lime-tolerant Rhododendrons

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. These plants are grown under licence in Germany, and enable choice hardy hybrids and yakushimanum varieties to be grafted on the rootstock and 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 slow release fertilizer and plenty of good Ericaceous compost for best performance.

Please note that some of these plants are broader than they are in height, and that the specimen sizes (eg 90-100cm) are measured by the larger of the height or width.

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Rhododendron (yak) Anuschka INKARHO
Rhododendron (yak) Anuschka INKARHO
Now available on the Inkarho rootstock! Striking bright red buds open to gorgeous rosey pink flowers in late May. A lovely very hardy yakushimanum hybrid that has attractive dark green foliage. Height 75-100cm in 10 years. Plant with plenty of good ericaceous compost to aid establishment. Recommended for: Tough and reliable variety. Easy to grow. Ideal position: Most garden situations. Habit:...
£349.00
Rhododendron (yak) Fantastica  AGM INKARHO
AGM
Rhododendron (yak) Fantastica AGM INKARHO
Now available on the Inkarho rootstock! Stunning red flowers with a paler centre fading to an attractive pink in May. We think this is one of Hachmann's best hybrids and very striking. It has dark foliage which really sets off the flowers nicely. Height 100-120cm in 10 years.Plant with plenty of good ericaceous compost to aid establishment. Ideal for containers and small gardens. Easy to grow. Group:...
from £325.00

Rhododendron (yak) Kalinka INKARHORhododendron (yak) Kalinka INKARHO
Rhododendron (yak) Kalinka INKARHO
Now available on the Inkarho rootstock! This lovely plant is red in bud, opening to ruby pink flowers with ruffled darker edges. It fades to pale rose pink with greenish yellow spots in May. It has a compact habit and dark shiny leaves with thin brown indumentum on the underside. Height 100cm in 10 years.Plant with plenty of good ericaceous compost to aid establishment. Ideal for containers and...
£49.95
Rhododendron (yak) Polaris AGM INKARHORhododendron (yak) Polaris AGM INKARHO
AGM
Rhododendron (yak) Polaris AGM INKARHO
Now available on the Inkarho rootstock! This tough little plant has red buds opening to ruby pink, ruffled flowers with a paler centre in May. It has good foliage and is wind, sun and cold tolerant. Height 80-120cm in 10 years. Also known as Hachmann's Polaris. Plant with plenty of good ericaceous compost to aid establishment. Ideal for containers and small gardens. A tough variety that is easy...
from £49.95

Rhododendron (yak) Schneekrone AGM INKARHO
AGM
Rhododendron (yak) Schneekrone AGM INKARHO
Now available on the Inkarho rootstock! Beautiful white flowers tinged soft pink and spotted ruby red, in a ball shaped truss. Flowering in May we think this is one of the best white yaks (compact Rhododendrons) for cold climates. Height 80-100cm in 10 years. The English translation is Snow Crown, and it certainly has a majestic flower! Plant with plenty of good ericaceous compost to aid establishment. Recommended...
£249.00
Rhododendron (yak) Silberwolke  AGM  INKARHO
AGM
Rhododendron (yak) Silberwolke AGM INKARHO
Now available on the Inkarho rootstock! Beautiful pinky purple in bud opening to frilled ice-white flowers, spotted yellow green in the throat. This is a stunning plant flowering in late May. It is compact with deep green thick foliage. Height 80-100cm in 10 years. Silberwolke means Silver Cloud and this is another of our favourites.Perhaps a nice Silver Wedding present? Plant with plenty of good...
£325.00

Rhododendron (yak) Sonatine INKARHO
Rhododendron (yak) Sonatine INKARHO
Red in bud, opening to deep pink flowers, with a slightly creamy and speckled centre. Flowering from mid to late May, this is a tough plant from Hachmann's in Northern Germany. Lovely dark green leaves with a thin silvery grey indumentum on the undersides. Height 100-125cm in 10 years. Plant with plenty of good ericaceous compost to aid establishment. Ideal for containers and small gardens. Easy...
£395.00
Rhododendron (yak) yakushimanum 'Koichiro Wada' INKARHORhododendron (yak) yakushimanum 'Koichiro Wada' INKARHO
Rhododendron (yak) yakushimanum 'Koichiro Wada' INKARHO
Now available on the Inkarho rootstock! Pink in bud opening to delightful white bell shaped flowers in May that have the appearance of apple blossom. Koichiro Wada has silvery new growth which turns dark glossy green, with dense brown indumentum underneath the leaf. There is a distinctive white covering (tomentum) on the top of the leaves. Height 50-75 cm in 10 years. This is generally accepted to...
£249.00

Rhododendron Bellini INKARHO
Rhododendron Bellini INKARHO
Now available on the Inkarho rootstock! This is a good tough yellow from Northern Germany with bright yellow flowers with dark red markings in the throat during May. Height 130-160cm in 10 years.Plant with plenty of good ericaceous compost to aid establishment. Recommended for: Tough and reliable variety. Easy to grow. Ideal position: Most garden situations. Habit: Dense. Group: Hybrid Rhododendron...
£325.00
Rhododendron Catawbiense Boursault INKARHO
Rhododendron Catawbiense Boursault INKARHO
(H7) Long lasting lilac purple flowers with few markings. Late May flowering in a dense truss. A vigorous, very tough old variety, dating from before 1850, and hardy to -30C. Height 175-200cm in 10 years. Plant with plenty of good ericaceous compost to aid establishment. Recommended for: Hedging/screening. Easy to grow. Ideal position: Most garden situations. Habit: Dense. Group: Hardy Hybrid. Tolerant...
from £375.00

Rhododendron Constanze INKARHO
Rhododendron Constanze INKARHO
Now available on the Inkarho rootstock! Lovely rose pink flowers, paler in the throat, with wine red spotting on upper lobe. Flowering in late May this is a very hardy plant from Hachmann's Nursery in Northern Germany which grows wider than high. Height 140 -160cm in 10 years. Registered name is Hachmann's Constanze.Plant with plenty of good ericaceous compost to aid establishment. Recommended...
from £375.00
Rhododendron Dufthecke Lilac INKARHO
Rhododendron Dufthecke Lilac INKARHO
Available on the Inkarho rootstock! Lilac purple opening to lilac and flowering in April-May. It has fragrant flowers on a plant of neat compact growth with attractive shiney leaves. Height 125-150cm in 10 years. This one is ideal for hedging and screening. The German translation of Dufthecke is fragrant hedge! Plant with plenty of good ericaceous compost to aid establishment. Recommended for: Hedging/screening...
from £375.00

Rhododendron Dufthecke Rose INKARHO
Rhododendron Dufthecke Rose INKARHO
Available on the Inkarho rootstock! Deep pink in bud opening to attractive pale pink flowers in early May. It has fragrant flowers on a plant of neat compact growth with attractive shiney leaves. Height 125-150cm in 10 years. This one is ideal for hedging and screening. The German translation of Dufthecke is fragrant hedge! Plant with plenty of good ericaceous compost to aid establishment. Recommended...
from £195.00
Rhododendron Dufthecke White INKARHO
Rhododendron Dufthecke White INKARHO
Available on the Inkarho rootstock! Intense lilac in bud, opening to creamy-white flowers with a pale rose-lilac edging. The beautifully scented flowers change gracefully to icy white in April-May. It has nice glossy pale green leaves on a plant of neat compact growth. Height 125-150cm in 10 years.This one is ideal for hedging and screening. The German translation is fragrant hedge! Plant with plenty...
£395.00

Rhododendron Graffito INKARHORhododendron Graffito INKARHO
Rhododendron Graffito INKARHO
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:...
£395.00
Rhododendron Marcel Menard AGM INKARHORhododendron Marcel Menard AGM INKARHO
AGM
Rhododendron Marcel Menard AGM INKARHO
Now available on the Inkarho rootstock! Deep purple violet flowers, with prominent greenish speckling in the throat. Flowering late May to early June this is an old but particularly tough variety with clean dark green foliage. Height 140-160 cm in 10 years. Also known as Monsieur Marcel Menard. Plant with plenty of good ericaceous compost to aid establishment. Recommended for: Striking flower...
£325.00

Rhododendron Old Port INKARHO
Rhododendron Old Port INKARHO
Now available on the Inkarho rootstock! Extremely attractive medium reddish purple flowers with a deep blotch flowering in late May. This is a vigorous old hybrid with good glossy leaves. Height typically 150cm tall by 180cm wide in 10 years. Plant with plenty of good ericaceous compost to aid establishment. Recommended for: Striking flower and great foliage. Easy to grow. Ideal position: Most...
£395.00
Rhododendron Roseum Elegans INKARHO
Rhododendron Roseum Elegans INKARHO
Now available on the Inkarho rootstock! Beautiful lavender flowers fading to pink, with reddish brown spotting. Flowering in late May early June this lovely old hybrid has olive green foliage. It tolerates sun, heat and cold and is a dense and vigorous grower. It is ideal for windbreaks or hedging and screening. Height 180cm in 10 years. Plant with plenty of good ericaceous compost to aid establishment. Recommended...
from £325.00

Rhododendron Vulcan  AGM INKARHORhododendron Vulcan  AGM INKARHO
AGM
Rhododendron Vulcan AGM INKARHO
Now available on the Inkarho rootstock! This is a stunning plant with tall trusses of fiery-red flowers in May-June. It has long leaves and forms a compact, dome shaped bush. It will perform best in a fairly sunny position but is tough and always reliable. Height 140-160cm in 10 years. Plant with plenty of good ericaceous compost to aid establishment. Please note this variety has a broad habit, wider...
£49.95