Spiraea japonica Fenna - Japanese Spiraea
Spiraea japonica Fenna - Japanese Spiraea
Spiraea japonica Fenna - Japanese Spiraea
Spiraea japonica Fenna® PBR EU 20221444
Japanese Spiraea, Japanese Meadowsweet
I'm a big fan of spireas and I'm considering getting this one. What size pot would it need? Thank you.
Marie, 24/01/2026
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Available in 3 sizes
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Available in 3 sizes
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Available in 5 sizes
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Available in 5 sizes
Available in 3 sizes
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This plant carries a 24 months recovery warranty
More information
We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Japanese spirea or Spiraea japonica 'Fenna' is a dwarf variety that is particularly compact, very robust, and resistant to mildew. Its healthy, medium green foliage is enriched from May to August with a dark pink flowering that does not fade for several weeks. 'Fenna' attracts more pollinators than most spireas. It naturally has a compact, round, and neat shape and prefers a sunny exposure, although it tolerates partial shade.
'Fenna' Japanese spirea, from the rose family, is a cultivar derived from Spirea japonica (synonym Spiraea x bumalda or Spiraea callosa), native to eastern and central China and Japan. The growth of this plant is moderate, and its adult size will not exceed 25 to 30 cm in height and 30 cm in width. Forming a true well-rounded mound, supported by dense and branching vegetation, this variety develops young foliage tinged with bronze that unfolds into small, light and vibrant green leaves, darkening somewhat in summer. This foliage consists of small, oblong and toothed leaves. The particularly numerous flowers are grouped in terminal corymbs measuring 5 cm in diameter, with a velvety appearance and a dark pink colour. This prolonged flowering attracts numerous butterflies, bees, and bumblebees.
Japanese spirea adapts to all climates and soils, but dislikes scorching or overly arid conditions. With its beautiful cushion-like habit and small size, 'Fenna' is ideal in a pot on a balcony or terrace, as well as in the garden, as a border or foreground plant in flower beds. Use it as a ground cover along a pathway or even in a rock garden. Pair it with dwarf roses, with Potentilla fruticosa 'Double Punch Pastel', in front of miniature shrubs like the Dwarf Manchurian Lilac 'Miss Kim' or Weigela 'Nana Purpurea'. Also accompany it with other spireas (Spiraea betulifolia), the Purple Willow, Salix purpurea 'Nana'.
Plant habit
Flowering
Foliage
Botanical data
Spiraea
japonica
Fenna® PBR EU 20221444
Rosaceae
Japanese Spiraea, Japanese Meadowsweet
Cultivar or hybrid
Planting and care
Plant the Japanese Spirea Fenna in any soil that is not too dry, rather fertile, well-drained, preferably in the sun, although it tolerates partial shade. The presence of limestone, without excess, is well tolerated. Water well in the first year. Prune in February-March to 10 - 15 cm from the ground: the late winter pruning is essential if you want to obtain a beautiful flowering. Japanese Spiraea are perpetual plants, to promote a second flowering, it is important to lightly prune the plant or remove faded flowers to encourage new growth in late summer, early autumn. This plant blooms on the current year's shoots. To maintain the vigour of the young plant, it is also important to remove old branches at the base in spring. Apply a complete fertiliser in March. Plant the young plants with a spacing of 60 cm at planting, preferably in autumn and winter.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.