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Hydrangea macrophylla Light My Fire- Mophead Hydrangea

Hydrangea macrophylla Black Diamonds® Light My Fire
Bigleaf Hydrangea, Mophead Hydrangea

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More information

This recent hydrangea from the 'Black Diamonds' series is an extraordinary bush, with shiny foliage of a very dark green-brown, almost black, and producing beautiful bicoloured inflorescences in white and red, tinted with green. Its flowers withstand bad weather well. With a rather slow growth, not very tall but well-balanced, it is as beautiful in the garden as it is in a large pot on the patio.
Flower size
20 cm
Height at maturity
1 m
Spread at maturity
1 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time April, October
Recommended planting time February to April, August to October
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Flowering time July to September
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Description

The Hydrangea or Hydrangea macrophylla Black Diamonds 'Light My Fire' is a variety with striking and highly contrasting colours. It has a dark foliage of chocolate brown and develops bicoloured flowers in summer, initially green and gradually turning white with dark red edges. This variety exhibits a rather slow growth, a compact and well-balanced habit, and a long-lasting summer flowering that is resistant to harsh weather conditions. It can be planted in the garden or in a large pot on the terrace, in mild sun or partial shade, in ordinary soil that is not too chalky.

The Hydrangea macrophylla Black Diamonds 'Light My Fire' is a recent creation resulting from the cross-breeding of the H. macrophylla and H. serrata species, among others. All these hardy plants belong to the hydrangea family and are native to China and Japan.

This bush has a rounded and ramified habit, as wide as it is tall, reaching approximately 1m in all directions. From July to September, its small sterile flowers form spherical inflorescences measuring 20 to 25 cm in diameter, slightly convex. The colour palette varies from green to white and red. The flowering beautifully contrasts with the waxy-textured foliage that is highly glossy, deeply veined, and very dark green, strongly tinged with brown and black throughout the season. The deciduous leaves are opposite, reaching a minimum length of about fifteen centimetres. They are simple, ovate to elliptical, with a pointed tip and coarsely dentate margins. Hydrangeas can live for at least 50 years.

'Light My Fire' Hydrangea fascinates with the brilliance of its contrasts. Hydrangeas are well-known for brightening the north side of houses. This variety will thrive in a non-scorching east or west exposure, both in flower beds and hedges. It is well-suited for container cultivation, whether placed on the terrace in a beautiful pot or near the entrance. Given its intensity, pair 'Light My Fire' with plants with green foliage or solid-coloured flowers, either white or red, to calm the ambiance while harmonising with it. Consider Chinese Azaleas, Lilies, Tulips, or the simple flowers of the soft yellow Cape Fuchsia or Phygelius 'Yellow Sovereign'. Enjoy its long-lasting flowering in the garden or indoors.

Plant habit

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

Flowering

Flower colour violet
Flowering time July to September
Inflorescence Cyme
Flower size 20 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour purple

Botanical data

Genus

Hydrangea

Species

macrophylla

Cultivar

Black Diamonds® Light My Fire

Family

Hydrangeaceae

Other common names

Bigleaf Hydrangea, Mophead Hydrangea

Origin

Cultivar or hybrid

Product reference22597

Planting and care

Plant Hydrangea macrophylla Light My Fire in spring or early autumn, preferably in a slightly shaded location, such as 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 conservatory. Protect it from cold and drying winds. It does not require ericaceous soil, but appreciates a deep, cool, well-drained, and moderately fertile soil, optionally enriched with a good base fertiliser before planting. If the soil is dry at the base of the wall, plant the root ball at least 30-40 cm away from the base of the wall and incorporate a generous amount of well-rotted compost to better retain moisture in the soil. Highly hardy, it can be planted in cold regions without concern. As for pruning, remove faded flowers at the first bud or the pair of buds directly below. Cut back a quarter to a third of the oldest stems at the base when the plant is mature to promote the formation of new shoots. Perform this pruning every year in March and April.

Planting period

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

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Container, Hedge
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, well-drained, rich

Care

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

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