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Pieris japonica Purity - Japanese Andromeda

Pieris japonica Purity
Japanese Andromeda, Japanese Pieris, Lily-of-the-Valley Bush

4,4/5
2 reviews
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Very lovely little bush. I've planted it in a bed of heather soil, and I'm looking forward to spring when, hopefully, it will beautify the entire bed.

Francine, 08/12/2020

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This plant carries a 24 months recovery warranty

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Pieris 'Purity' is a new Japanese variety with early and extremely abundant pure white blooms, producing large white bell-shapes gathered in panicles, partly drooping and partly erect. With compact and low vegetation, this evergreen bush shows off shiny green foliage, lighter in spring, elegant throughout the year. Well suited for container cultivation to decorate a terrace, it is also perfect in a partially shaded ericaceous bed. Award-winning variety in England.
Flower size
6 cm
Height at maturity
1.35 m
Spread at maturity
1.50 m
Exposure
Partial shade
Hardiness
Hardy down to -23°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 March to April
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Description

Pieris japonica 'Purity' is a new variety of Japanese Andromeda selected in Japan for its floriferousness and compact habit. From March onwards, beautiful pure white blooms appear in abundance, clearly visible against the foliage. They are composed of large white bell-shaped flowers gathered in slightly upright panicles, crowning a compact and low-growing bush, in a dome shape. Particularly well-suited for container cultivation to decorate a terrace, this variety has won awards in England for its ornamental qualities, and for its ease of cultivation in non-calcereous soil. By illuminating the partially shaded areas of a garden or terrace, this white-flowering Andromeda offers a charming spectacle throughout the year.  

Pieris japonica, commonly called Japanese Andromeda, is native to eastern China, Japan, and Taiwan. It belongs to the Ericaceae family. The cultivar 'Purity', recently obtained by Pépinières Hakoneya in Japan, has a spreading habit, wider than it is tall. Its growth is very slow, ultimately forming a shrub measuring on average 1.35 m (4 in 5 ft) in height by 1.50 m (4 in 11 ft) in width. It has beautiful evergreen foliage, composed of long, shiny, lanceolate and pointed leaves, slightly toothed along the edges, measuring up to 10 cm (3.9 in) in length. The young shoots are tender green, then the leaves turn dark green. Clusters of white floral buds appear from the beginning of winter, enhancing the decorative effect of this Japanese Andromeda during the drearier months. In March-April, it becomes covered with a multitude of semi-pendulous clusters, 3 to 6 cm (1.2 - 2.4 in) long, composed of large white bell-shaped flowers, reminiscent of lily-of-the-valley blooms. The flowers give off a light honey fragrance.

Pieris japonica are hardy shrubs, appreciating acidic and moist soils, and partial shade. Due to its small size and extremely decorative appearance throughout the seasons, this 'Purity' Japanese Andromeda is perfectly suited for container cultivation, on a terrace, patio, or partially shaded balcony. It will also thrive under the cover of large trees, along the edge of partially shaded shrubs, as a low hedge, in a shaded rock garden, and particularly within an ericaceous bed, alongside other acid-loving plants such as Camellias, Rhododendrons, Azaleas, Nandina, or Heathers. With its generous all-white flowering, it will create a sensational effect when combined with spring bulbs. This Japanese Andromeda animates the garden beautifully in all seasons, even in winter. It has its rightful place in a Japanese style garden.

Pieris japonica Purity - Japanese Andromeda in pictures

Pieris japonica Purity - Japanese Andromeda (Flowering) Flowering
Pieris japonica Purity - Japanese Andromeda (Foliage) Foliage

Plant habit

Height at maturity 1.35 m
Spread at maturity 1.50 m
Habit Irregular, bushy
Growth rate slow

Flowering

Flower colour white
Flowering time March to April
Inflorescence Panicle, Cluster
Flower size 6 cm
Fragrance slightly scented, Honey
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Botanical data

Genus

Pieris

Species

japonica

Cultivar

Purity

Family

Ericaceae

Other common names

Japanese Andromeda, Japanese Pieris, Lily-of-the-Valley Bush

Origin

Cultivar or hybrid

Product reference842071

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Planting and care

Pieris japonica 'Purity' appreciates a partially shaded site or gentle sunlight, as well as an acidic, cool, light, humus-rich, and well-drained soil. It offers good hardiness and can withstand temperatures down to -15°C (5 °F) in completely drained soil, but its young shoots can be damaged by late frosts. It is advisable to plant it in a position sheltered from cold, drying winter winds. Install a thick mulch at its base in autumn in harsh climates or in situations exposed to winter winds. A thick layer of fern fronds, dead leaves, and pine needles would be ideal. If its young foliage has been damaged by frost, it should be pruned back to stimulate the growth of new shoots. Appreciating good humidity, it prefers consistently moist soil but not stagnant moisture in clayey soils. To prevent soil dryness, regular watering with non-calcareous water is necessary, especially in the first year following planting and during the summer period. Planting is done in spring or autumn, in a mixture of garden soil, turf, and heather soil. In spring, it is advisable to apply a layer of ericaceous soil and compost around its roots, and optionally provide a slow-release fertiliser in the form of a handful of dried blood. Take care to provide enough space for this Pieris japonica to ensure its proper development, respecting a planting distance of 70 cm (2 ft 2 in) to 1 m (3 ft 3 in) around its base. After flowering, remove faded blooms to avoid unnecessarily exhausting the plant through seed production. Also, lightly prune bare branches that compromise the bushy habit of the Pieris japonica.

Planting period

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

Intended location

Suitable for Shaded rockery, Woodland edge, Undergrowth
Type of use Border, Free-standing, Container, Hedge
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Well-drained, humus-rich and fertile

Care

Pruning instructions At the beginning of summer you can reduce the tips of the branches by 20 cm (7.9 in), in order to stimulate the growth of new red shoots.
Pruning Pruning recommended once a year
Pruning time June
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground
4,4/5
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