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Spiraea japonica Darts Red

Spiraea japonica Darts Red
Spirée du Japon

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The young plant received seems to be of good quality since buds are already visible.

François, 15/03/2023

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This plant carries a 24 months recovery warranty

More information

An improvement of the well-known 'Anthony Waterer' Japanese Spirea. Dart's Red has flowers of a darker pink, as well as a bushy and compact habit. Its green foliage during the season takes on a beautiful purple color in autumn. An ideal young plant to start in the garden, this bush adapts to most soils and climates. It only fears excessively dry soils in summer, but tolerates limestone as well as reasonably acidic soils. This Spirea thrives in the sun, tolerates partial shade, and proves to be hardy.
Flower size
10 cm
Height at maturity
80 cm
Spread at maturity
80 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time February to April, September to November
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Flowering time July to August
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Description

The Spiraea japonica Dart's Red is a variety of Japanese Spiraea that is distinguished by its large dark pink floral clusters, which appear in late June and can last until the end of summer. Autumn also allows it to stand out as its foliage takes on beautiful bronze to purple hues. Its compact, well-branched habit makes it useful for forming low hedges or for combining in diverse flower beds, and it can even be planted in containers on a terrace. Highly resistant to cold and adaptable to most growing conditions, it is a plant that is easy to adopt without hesitation.

The 'Dart's Red' Japanese Spiraea belongs to the large family of Rosaceae, which includes most of our fruit plants (from apple trees, pear trees, cherry trees, apricot trees to strawberries and raspberries), numerous wild plants, as well as many horticultural plants. The queen of flowers, the rose, has given its name to the family, which also includes serviceberries, cinquefoils, firethorns, kerrias, etc.
This 'Dart's Red' Spiraea is an improvement on Anthony Waterer', a very old variety (1875). The growth of this well-branched bush is moderately fast, and its mature size will not exceed 80 cm (31.5 in) to 1 m (3 ft 4 in) in all directions as an adult. Flower buds begin to form in June and produce terminal corymbs, about 12 cm (4.7 in) in diameter, of dark pink flowers that turn red until August-September. This long-lasting flowering attracts many insects and butterflies. Its deciduous foliage consists of small leaves, about 6 cm (2.4 in) long, oblong, dentate, and acuminate, with colours that vary from spring to autumn. When they emerge, young leaves have a reddish tint before turning green during the season and then bronze-purple in autumn before falling.
Highly resistant to cold (-20°C), this bush grows in practically all soils, from moderately acidic to moderately alkaline, not too dry in summer.

Easy to grow, this little Dart's Red Spiraea can be used for low hedges, around a terrace, or along a pathway. It is also well-suited for planting in flower beds alongside spring-flowering shrubs, creating a visual attraction throughout the growing season. It can be combined with Forsythias, which brighten the garden with their luminous yellow at the beginning of the season, followed by the classic, irreplaceable Mock Orange or Philadelphus coronarius with its single white flowers and delightful fragrance. The unique Pheasant Berry (which is actually a shrub, Leycesteria formosa) will then extend the flowering period of our little Spiraea with its curious decorative fruits in autumn.

Spiraea japonica Darts Red in pictures

Spiraea japonica Darts Red (Flowering) Flowering
Spiraea japonica Darts Red (Foliage) Foliage

Plant habit

Height at maturity 80 cm
Spread at maturity 80 cm
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour pink
Flowering time July to August
Inflorescence Corymb
Flower size 10 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Spiraea

Species

japonica

Cultivar

Darts Red

Family

Rosaceae

Other common names

Spirée du Japon

Origin

Cultivar or hybrid

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Planting and care

Plant the Japanese Spiraea 'Dart's Red' in any well-drained soil, but not too dry, rather rich, preferably in the sunlight or in partial shade. It adapts to all climates and all types of soil, including limestone, but it dreads dense shade or scorching and overly arid situations. Soak the root ball well in a bucket before planting it. If your soil is sandy, mix some compost with the existing soil (half and half) to enrich it and improve its water retention. Water well for the first two years. Afterwards, you can apply a bit of organic fertilizer in the spring, favoring formulas with a slightly higher potassium content than nitrogen. If you plant it in a group, make sure to space the plants 60 cm (23.6 in) apart at planting to obtain a dense vegetative mass.

Planting period

Best planting time March, October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Container
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 Any
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, ordinary, well-prepared

Care

Pruning instructions Trim in February-March to 10-15 cm (3.9-5.9 in) from the ground; winter pruning is essential if you want to achieve a beautiful flowering. Spiraea japonica are perpetual plants and to promote a second flowering, it is important to lightly prune the plant or remove faded flowers to encourage regrowth in late summer, early autumn. This plant flowers on the young shoots of the year. In order to maintain the vigor of the bush, it is also important to remove the oldest branches at the base in spring. This will promote the growth of new stems.
Pruning Pruning recommended twice a year
Pruning time February to March, August
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
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