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Hydrangea paniculata Grandiflora

Hydrangea paniculata Grandiflora
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea

3,0/5
2 reviews
0 reviews
3 reviews
0 reviews
2 reviews

Hello, I am quite disappointed. After planting it, I realize that the label from your supplier indicates a height of 1.75 m (6ft) while you mention on your website 3 m (10ft) x 3 m (10ft). I have checked on about ten websites and the height never exceeds 2.50 m (8ft). I have ordered over 150 young plants from you for the past 3 years, some have died and I have never asked for a refund, but this time, I would appreciate it if you could make a gesture. Looking forward to your response. Kind regards.

Anne, 21/10/2021

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This plant carries a 24 months recovery warranty

More information

A tried and tested classic variety! This big, leafy, deciduous Hydrangea shrub produces many flowers throughout the summer. The flowers are enormous panicles that start white and gradually turn to old pink as the season ends. Additionally, in the autumn, the shrub's foliage turns into a beautiful golden-yellow colour, which looks stunning!
Flower size
25 cm
Height at maturity
3 m
Spread at maturity
3 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 March to May, September to November
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Flowering time July to September
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Description

Hydrangea paniculata Grandiflora is a stunning deciduous shrub that produces an abundance of beautiful white flower heads, which fade to an old rose, along with gorgeous dark green foliage that turns golden in autumn. This hydrangea is easy to grow and highly resilient, tolerating both full sun and partial shade and various soil conditions, provided the soil is well-drained. This large-scale hydrangea shrub will undoubtedly steal the show throughout the summer and into autumn!

The Hydrangea paniculata belongs to the Hydrangea family and is native to Korea, southeast China, Japan, and Russia (Sakhalin and Kuril Islands). It originates from deciduous forests and is a classic variety of the genus and the most commonly cultivated form since its introduction to the West. This plant grows quickly, forming a large bush with brown stems measuring 2.50 to 4 m (8 ft 2 in - 13 ft 1 in) in all directions. The plant's bushy, upright and vigorous habit is characterised by deciduous foliage that appears late in spring. The leaves are ovate and pointed, dark green, and measure 7 to 15 cm (2.8 - 5.9 in) in length. The foliage turns into a stunning golden yellow in autumn if the cold weather doesn't set in too quickly. 

The Hydrangea paniculata is a highly floriferous plant with many conical, dense, and compact panicles. These panicles measure about 30 to 40 cm (11.8 - 15.7 in) in length and are made up almost entirely of sterile flowers. The flowers begin as greenish-white, then turn creamy-white, and gradually evolve into an old rose towards the end of the season. As the branches bear the weight of the flower heads, they gracefully arch, giving the bush a larger appearance. The flowers remain on the bush throughout winter, beautifully decorating the garden during the dormant season. They look particularly stunning when covered in frost.  

The Hydrangea paniculata is a large plant perfect for gardens rather than pot cultivation. It is highly adaptable, easy to grow, and extremely hardy. It can survive in full sun, partial shade, and ordinary soil, even poor or rocky soil, as long as it is well-drained. There are many ways to incorporate this plant into your garden, including using it in a free hedge, as a standalone specimen, or integrating it into a bed of trees and shrubs with perennial plants. It pairs well with shrubs with remarkable evergreen foliage, dark or variegated leaves, coloured stems such as certain dogwoods, or summer or late-flowering shrubs. This contrasts with the colour of the Hydrangea paniculata, which blooms all summer long with changing hues, providing a spectacle in both summer and autumn and winter! Removing faded flowers at the end of the season is unnecessary, as they remain decorative throughout the winter and protect the stems in case of severe frost. However, if you can't resist, hydrangeas make beautiful bouquets, whether fresh or dried.

Hydrangea paniculata Grandiflora in pictures

Hydrangea paniculata Grandiflora (Flowering) Flowering
Hydrangea paniculata Grandiflora (Foliage) Foliage
Hydrangea paniculata Grandiflora (Plant habit) Plant habit

Plant habit

Height at maturity 3 m
Spread at maturity 3 m
Habit Irregular, bushy
Growth rate fast

Flowering

Flower colour white
Flowering time July to September
Inflorescence Panicle
Flower size 25 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour dark green

Botanical data

Genus

Hydrangea

Species

paniculata

Cultivar

Grandiflora

Family

Hydrangeaceae

Other common names

Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea

Origin

Cultivar or hybrid

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Planting and care

The Hydrangea paniculata Grandiflora is a large bush that is easy to grow and requires little maintenance. It can thrive in areas that receive full sun or partial shade. The flowers and autumn foliage will be more vibrant when the plant is grown in full sun. This plant is hardy and can endure harsh climates, tolerating temperatures as low as -15°C (5°F). It can adapt to different soil types but requires well-drained, acidic to neutral soil. You can improve the soil with a layer of leaf compost every spring, but it will still grow well in humus-rich, acidic, ordinary, poor, or rocky soils. However, it is not tolerant of heavy soils, so you should add sand or gravel to improve drainage. 

When planting, whether in spring or autumn, it is crucial to prepare the soil properly and incorporate a good base fertiliser such as blood, fish and bone. Leave a space of 1m (3 ft 4 in) to 1.50m (4 ft 11 in) around the plant to allow it to grow to its full potential. While it prefers moist soil, it can tolerate temporary drought reasonably well. During the initial year, it is advisable to water it regularly and amply, especially if it is grown under direct sunlight. Watering it frequently during its flowering phase is also recommended, but be careful not to wet the leaves and flowers. During planting, which can be done in spring or autumn, work the soil well and add a good base fertiliser such as blood, fish and bone. Allow a space of 1m (3 ft 4 in) to 1.50m (4 ft 11 in) around it so it has room to spread. Although it prefers moist soil, it can tolerate temporary drought reasonably well. During the first year, it is recommended to water it regularly and deeply, especially if it is grown in full sun. Frequent watering during flowering is also advised, taking care not to wet the foliage and flowers.

Planting period

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

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Back of border, Hedge
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 1 per m2
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, well-drained

Care

Pruning instructions Hydrangea paniculata Grandiflora must be pruned yearly to promote healthy growth and ensure spectacular flowering. This should be done in late winter or early spring, cutting back the previous year's shoots to a few buds above the old wood. Removing spindly shoots and old branches at the base is essential to achieve a beautiful framework and to support the branches. In addition, a lighter pruning can be done by removing faded flowers in late winter. The bush will produce smaller flower heads, but it will be taller and have a more natural and wild appearance.
Pruning Pruning recommended once a year
Pruning time February to April
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
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