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Azalea Cannons Double

Rhododendron (Azalea) Cannon's Double
Chinese Azalea

4,7/5
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This young plant is a Christmas gift for a friend. I already have two in my garden and I know how it works. Two-thirds of this young plant has buds but one-third is without buds and without any signs of life. It's a shame. So far, you have always sent me lovely plants.

Mme M., 10/12/2018

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This plant carries a 24 months recovery warranty

More information

Value-for-money
Small deciduous Shrub, notable for its semi-double trumpet-shaped flowers, rosy-white with pink edges and a yellow centre. It will delight you in spring and quickly become an essential feature of your ericaceous beds.
Flower size
7 cm
Height at maturity
1.20 m
Spread at maturity
1 m
Exposure
Partial shade, Shade
Hardiness
Hardy down to -20°C
Soil moisture
Moist soil
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Recommended planting time February to May, September to December
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Flowering time April to May
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Description

 

Chinese Azalea 'Cannon's Double', also known as the Hybrid Rhododendron, is a small deciduous shrub, notable for its semi-double, rosy-white flowers edged with pink and with a yellow centre. It will delight you in spring and quickly become an essential feature in ericaceous beds.

 

Native to China, the 'Cannon's Double' Azalea has an upright habit and reaches a height of 1.20m (3 ft 11 in) and a spread of 90cm to 1m (2 ft 11in to 3 ft 3in) at maturity. The deciduous foliage, often absent at the base of the bush, is light green, oval, and flexible with prominent veins. In May and June, this shrub has an abundance of open, trumpet-shaped flowers grouped in dense terminal clusters that stand out from the foliage. These semi-double, white flowers with pink margins and yellow centres are a must for your garden!

Hardy down to -15°C (5°F), the Chinese Azalea 'Cannon's Double' needs a bright spot, away from direct sunlight. Ideally, it should be planted in semi-shade, in a location protected from cold, drying winds. This slow-growing, little ericaceous shrub likes moist, humus-rich, aerated, acid soil.

Plant the 'Cannon's Double' Azalea in ericaceous beds, on a slope, in a shady rockery, or in the middle of a border alongside Pieris, heathers, Kalmias, Japanese Pieris, and Japanese maple.

Divided into 2 horticultural groups, the Rhododendron genus includes on one hand Chinese and Japanese Azaleas, with small evergreen or deciduous leaves, and 5 stamens per flower, and on the other hand Rhododendrons, with ample, evergreen, glossy foliage, and flowers with more than 10 stamens. Although highly debatable from a botanical point of view, this classification is still widely used by horticulture professionals.

Azalea Cannons Double in pictures

Azalea Cannons Double (Flowering) Flowering
Azalea Cannons Double (Foliage) Foliage

Plant habit

Height at maturity 1.20 m
Spread at maturity 1 m
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour yellow
Flowering time April to May
Flower size 7 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Rhododendron (Azalea)

Cultivar

Cannon's Double

Family

Ericaceae

Other common names

Chinese Azalea

Other Chinese Azalea

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Planting and care

Plant Cannon's Double Chinese Azalea in partial shade, protected from cold, drying winds, in light, moist, humus-rich, acid soil. Like all plants in the Ericaceous family, it cannot tolerate chalky or heavy soils that become waterlogged in winter. Dig a hole three times larger than the pot. Soak the root ball in non-chalky water and plant it level with the soil surface, in a mixture composed of 1/4 coir, leaf mould, horticultural grit or perlite, and loam. Water generously and keep the soil moist in summer. Azaleas and Rhododendrons have a shallow root system, which makes them vulnerable to long periods of drought. Therefore, it is advisable to enrich the soil with humus and water copiously during dry periods. Additionally, this root system is not very strong, which is why it is essential to lighten heavy soils with free-draining materials (horticultural grit, perlite, clay pellets) at planting. Apply a mulch of shredded pine bark around the base of the shrub every spring to maintain soil moisture and acidity. Maintenance consists of removing faded flowers in summer and clearing out dead branches. Azaleas and Rhododendrons can sometimes be attacked by weevils, which eat the edges of leaves and rootlets, and by the famous "Rhododendron lace bug", though not often causing significant damage. Yellowing of the leaves (chlorosis) in Rhododendrons indicates poor iron uptake from the soil and leads to premature plant death. While lime is often the cause, poorly drained soil or deeply planted root balls can also explain the phenomenon.

 

Planting period

Recommended planting time February to May, September to December

Intended location

Type of use Border, Container
Hardiness Hardy down to -20°C (USDA zone 6b) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Partial shade, Shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Well-drained and humus-rich

Care

Pruning instructions Pruning optional. After flowering, remove dead wood and if you need to limit the branches, do so sparingly, as severe pruning could compromise future flowers.
Pruning Pruning recommended once a year
Pruning time July to August
Soil moisture Moist soil
Overwinter Can be left in the ground
4,7/5
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