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Hydrangea paniculata Magical Mont Blanc

Hydrangea paniculata Magical Mont Blanc®
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea

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This new paniculate hydrangea will not exceed 1.2 m (3 ft 11 in) in all directions, making it an ideal variety for pot cultivation and laying out small spaces. It also stands out for the abundance and density of its brilliant white conical inflorescences. It flowers continuously from August to October, from the first year of cultivation. 'Magical Mont Blanc' will thrive in any ordinary soil that is not too dry, in the sun or partial shade.
Flower size
15 cm
Height at maturity
1.20 m
Spread at maturity
1.20 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time February to May, September to November
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Flowering time August to October
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Description

Hydrangea paniculata 'Magical Mont Blanc' is a new variety of paniculate hydrangea that stands out for its compact habit, its numerous flowers and its conical, sparkling white inflorescences, which are particularly dense. From the first year of cultivation, this shrub is continuously in bloom in the second part of the summer for three months. All these qualities make it a particularly appealing selection for pot cultivation and very useful for landscaping small spaces. In the garden, it is easy to imagine this adorable hydrangea installed under a window or leaning against a small staircase, for example.

Hydrangea paniculata, also known as Paniculate Hydrangea, is a species belonging to the Hydrangeaceae family native to the leafy forests of China and Japan. It is particularly hardy and tolerates sun well, as well as slightly calcareous and occasionally dry soils.

The 'Magical Mont Blanc' variety won the Innovert prize at the Salon du Végétal in 2017. This shrub shows an erect, dense and very compact habit. The main branches are erect, while the secondary ones are slightly arched. At maturity, this variety will not exceed 1.2 m (3 ft 11 in) in all directions, with fairly rapid growth. From August, numerous very white and very compact conical panicles, which have a green top, unfold on the year's shoots. They contain a large number of fertile florets that are tightly packed against each other. 'Magical Mont Blanc' has solid, well-ramified vegetation which supports the weight of the flowers without weakening. Its branches bear finely dentate, ovate leaves of a rather dark green colour, which are strongly veined and measure 5 to 15 cm (2 to 5.9 in) long and 5 to 7 cm (2 to 2.8 in) wide. They turn yellow in autumn before disappearing in winter. Paniculate hydrangeas are less sensitive to late frosts, as they generally bloom on the year's shoots.

Hydrangea paniculata differs from its cousin, Hydrangea macrophylla, by its good tolerance to sun, sea spray and relative drought. Installed in any good garden soil, without too much lime, Hydrangea paniculata 'Magical Mont Blanc' shows rapid growth. It is a very hardy variety, which can be planted alone, in a low hedge or in a massif, or in light undergrowth, mixed with other hydrangeas and perpetual roses to play with contrasts and shapes. You can also combine it with grasses like Miscanthus, Panicum virgatum Squaw and Stipa. Its small stature allows it to be incorporated into a small garden and to be cultivated without difficulty in a large pot on the terrace where it will live for many years with some applications of fertiliser and regular watering.

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Hydrangeas: planting, pruning and care
Family sheet
by Alexandra 20 min.
Hydrangeas: planting, pruning and care
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Hydrangea paniculata Magical Mont Blanc in pictures

Hydrangea paniculata Magical Mont Blanc (Flowering) Flowering
Hydrangea paniculata Magical Mont Blanc (Foliage) Foliage
Hydrangea paniculata Magical Mont Blanc (Plant habit) Plant habit

Plant habit

Height at maturity 1.20 m
Spread at maturity 1.20 m
Habit irregular, bushy
Growth rate fast

Flowering

Flower colour white
Flowering time August to October
Inflorescence Panicle
Flower size 15 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green
Product reference • 8546111

Planting and care

Hydrangea paniculata Magical Mont Blanc is not very demanding in terms of the nature of the soil, as long as it is not too heavy or too chalky. It requires a sunny but not scorching exposure, in the morning sun or partial shade. When planting, install it in deeply worked soil. A good base fertiliser (horn or dried blood) will aid the recovery of your young plant and nourish it without risk of burning. If your soil tends to be dry, mix our STOCKOSORB® water retainer with the soil when filling the planting hole and provide a watering basin on the surface. 

At the end of summer, we advise you not to cut the dry panicles which will protect the terminal shoots of the branches in winter; you should cut all the dry flowers at the end of February or on the first summer days. The plant's spring vegetation appears rather late.

Hydrangea Paniculata: these bushy hydrangeas with elongated inflorescences are more resistant to drought and easily establish themselves even in non-acidic soil. They bloom generously from June until the first frosts. When planted in the sun, their inflorescences change colour in the autumn.

Hydrangea paniculata Magical Mont Blanc must be pruned at the end of winter to produce more inflorescences and maintain a dense habit. Apart from deliberately limiting the expansion of the bush if it has become too large, you should ensure not to remove the two-year-old branches, as doing so will compromise the development of the plant.

Planting period

Best planting time March, October
Recommended planting time February to May, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Edge of border, Container
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Exposure Sun, Partial shade
Soil pH Any
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, ordinary but deep, loose and fertile soil

Care

Pruning instructions Hydrangea paniculata should be pruned at the end of winter to produce more inflorescences and maintain a dense habit. Apart from deliberately limiting the expansion of the bush if it has become too large, care should be taken not to remove the two-year-old branches, as doing so will compromise the development of the young plant.
Pruning Pruning recommended once a year
Pruning time March
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground

Planting & care advice

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