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Hydrangea macrophylla Rahic

Hydrangea macrophylla Rahic
Bigleaf Hydrangea, French Hydrangea, Lacecap Hydrangea, Mophead Hydrangea, Penny Mac, Hortensia

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Exceptionally floriferous variety, with early flowering from June, and a second flowering in September. The inflorescences of this hydrangea are white with a slight pink or blue hue, depending on the nature of the soil. They bloom on a rounded, well-branched shrub, which measures an average of 1.30 m in all directions. This hydrangea will create a beautiful flowering pot and enhance a small, moist and shaded flowerbed.
Flower size
12 cm
Height at maturity
1 m
Spread at maturity
1 m
Exposure
Partial shade
Hardiness
Hardy down to -15°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time February to April, August to October
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Flowering time June to October
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Description

Hydrangea macrophylla 'Rahic' is a truly irresistible variety with early and perpetual flowering in September. Its white ball-shaped flowers can take on a pink or blue hue and speckle depending on the nature of the soil. It is a rounded, generous, ornamental bush from late spring to autumn. This hydrangea deserves to be showcased in a carefully chosen large pot or at the front of a shaded bed to enjoy it for long weeks. Plant it in a rich, humus-bearing soil that remains slightly moist.

Hydrangea macrophylla 'Rahic' is a horticultural creation by Pierre-Michel Kerneur dating back to 1990. This cultivar comes from, among others, the species H. macrophylla, the hydrangea with large leaves. Hydrangeas belong to the hydrangea family and are native to China and Japan. 'Rahic' is a fairly fast-growing bush that has a dense and rounded habit as well as harmonious growth. It reaches an average size of 1.30 m in all directions when fully mature, in open ground. The bush blooms in June-July, and again in September. Its inflorescences are spherical, compact, of medium size (12-14 cm). They are composed of numerous simple sterile florets with 4 petals. They open in a pale green shade and then turn white. In neutral soil, the flowers sometimes turn a very pale pink, while in acidic soil, they take on a slight blue tinge. This flowering takes on beautiful pastel shades as it fades. It spreads over dark green, deciduous foliage that falls in autumn. The wide and opposite leaves reach a minimum length of about ten centimetres. They are ovate, ending in a tapered point, with coarsely toothed edges. Hydrangeas can live for at least 50 years.

The 'Rahic' Hydrangea is a variety that will be highlighted in the garden or on the terrace. In a shrub bed, it will pair well with a double pink variety ('You and Me Romance') or a blue variety ('Bodensee') for example. Hydrangea macrophylla is well known for brightening the north side of houses. This one will thrive in a non-scorching east or west exposure, in full sun or partial shade, in beds as well as in isolation. This 'Rahic' variety will be splendid in a large jar or a wide vase that can be placed on the balcony or near the entrance. Although hydrangeas are sensitive to limestone, they are not strictly speaking ericaceous plants. Pair them with Fuchsia magellanica, annual impatiens, or plant spring bulbs in front of their round silhouette. Enjoy their splendid flowering in the garden or the house for a long time.

Plant habit

Height at maturity 1 m
Spread at maturity 1 m
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour white
Flowering time June to October
Inflorescence Corymb
Flower size 12 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Hydrangea

Species

macrophylla

Cultivar

Rahic

Family

Hydrangeaceae

Other common names

Bigleaf Hydrangea, French Hydrangea, Lacecap Hydrangea, Mophead Hydrangea, Penny Mac, Hortensia

Origin

Cultivar or hybrid

Planting and care

Plant the 'Rahic' macrophylla hydrangea in spring or early autumn, preferably in a slightly shaded position, for example against an east-facing wall, or even north-facing. In very cold regions, it may be prudent to overwinter it in a cold greenhouse or in the conservatory, even though it can withstand -15°C. Protect it from cold and drying winds. It does not require ericaceous soil, but appreciates deep, moist, well-drained, fairly fertile soil, possibly enriched with a good base fertiliser before planting. If the soil is dry at the base of the wall, place the root ball at least 30-40 cm away and incorporate a quantity of well-decomposed compost to better retain moisture in the soil. Remove faded flowers on the first bud or the pair of buds directly below. Cut back a quarter or a third of the oldest stems at the base, when the plant is mature, to promote the formation of new shoots, every year during March and April.

Planting period

Best planting time March, October
Recommended planting time February to April, August to October

Intended location

Suitable for Woodland edge
Type of use Border, Container
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Planting spacing Every 100 cm
Exposure Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, well-drained, humus-bearing, deep

Care

Pruning instructions Remove faded flowers on the first bud or on the pair of buds located directly below. Prune back the older stems to the base by a quarter or a third when the plant is mature, to encourage the growth of young shoots. Carry out this pruning every year during March and April.
Pruning Pruning recommended once a year
Pruning time March
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground

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