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Hydrangea paniculata Prim'Red®

Hydrangea paniculata 'Couhaprim', PRIM'RED®
Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea

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This plant carries a 24 months recovery warranty

More information

A shrub with a bushy habit, typically reaching 1.50m in height, remarkable for its large panicles that change from cream-white to intense cherry-red from July onwards. They retain their beautiful colour until August. This paniculate hydrangea stands out as a fine ornamental shrub for many gardens. Hardy and easy to grow, it enjoys sunny locations and rich, moist but well-drained soils.
Flower size
15 cm
Height at maturity
1.50 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 May to October
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Description

Hydrangea paniculata 'Prim’Red' produces large panicles that turn red from the heart of summer, much earlier than most paniculate hydrangeas. This intense and long-lasting flowering makes it a highly decorative shrub in the garden, from early summer to autumn. This easy-to-grow, hardy and well-branched, generous shrub finds its place in a flowering hedge or a large shrub border. This hydrangea requires a fairly sunny position to develop its beautiful colour.

The paniculate hydrangea 'Prim’Red' belongs to the Hydrangeaceae family and bears the official code 'Couhaprim' PBR, protected under number EU 58380. It was selected in France, in the Vosges, by Jacques Couturieux, a recognised breeder affiliated with the SAPHO network.
This cultivar stands out for its remarkable presence: the floral panicles appear from late May or early June on the current year's wood, at the tips of short shoots. The shrub generally reaches 1.50m in height and 1.20m in width. Its habit is bushy and well-branched, naturally structured and balanced. Under ideal growing conditions, it can occasionally exceed this size and reach up to 1.80m tall. Mature size is reached in 3-4 years. The inflorescences consist of large conical panicles, about 15cm long. Each is formed of both sterile flowers (evolving from creamy white to pink, then cherry red in July-August) and bright red fertile flowers, attractive to pollinating insects. The deciduous foliage is composed of simple, opposite, ovate leaves with a toothed margin, matt green, turning slightly yellow in autumn before falling. This plant is hardy to –25 °C.

Crowned with cherry red from summer, the paniculate hydrangea 'Prim’Red' enlivens borders and flowering hedges. For refined contrasts, pair it with Hydrangea paniculata ‘Fraise Melba’, with its creamy pink tones and the almost black, finely cut foliage of Sambucus nigra ‘Black Lace’. As a counterpoint, underplant with Veronicastrum virginicum ‘Fascination’ and some grasses such as Deschampsia cespitosa ‘Goldtau’. This dynamic and sophisticated display will highlight the intense red of 'Prim’Red' while varying shapes and textures.

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Hydrangeas: planting, pruning and care
Family sheet
by Alexandra 20 min.
Hydrangeas: planting, pruning and care
Read article

Hydrangea paniculata Prim'Red® in pictures

Hydrangea paniculata Prim'Red®  (Flowering) Flowering

Plant habit

Height at maturity 1.50 m
Spread at maturity 1.20 m
Habit irregular, bushy
Growth rate normal

Flowering

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

Foliage

Foliage persistence Deciduous
Foliage colour medium green

Botanical data

Genus

Hydrangea

Species

paniculata

Cultivar

'Couhaprim', PRIM'RED®

Family

Hydrangeaceae

Other common names

Paniculate Hydrangea, Panicled Hydrangea, Panicle Hydrangea

Botanical synonyms

Hydrangea paniculata 'Couhaprim'

Origin

Cultivar or hybrid

Product reference24823

Planting and care

Plant your Hydrangea paniculata Prim'Red in deeply worked soil. A good base fertiliser (horn or dried blood) will help your plant establish and feed it without risk of burning. Hydrangea paniculata prefers humus-bearing soils, but tolerates slightly lime-bearing soils more easily. If your soil tends to be dry, mix plenty of compost with the soil when backfilling the planting hole and create a watering basin on the surface. Mulch in summer. Spring growth is quite late. Water frequently during flowering, while not watering the foliage and flowers directly.

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 Border, Back of border, Free-standing, Cut flowers, 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 well-drained, light, rich

Care

Pruning instructions Prune the faded inflorescences at the end of winter and, if necessary, slightly shorten the stems to maintain a compact habit.
Pruning Pruning recommended once a year
Pruning time February to March
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground

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