Acacia dealbata seeds - Silver Wattle
Acacia dealbata seeds - Silver Wattle
Acacia dealbata seeds - Silver Wattle
Acacia dealbata seeds - Silver Wattle
Acacia dealbata seeds - Silver Wattle
Acacia dealbata
Silver Wattle, Mimosa, Blue wattle
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This plant carries a 6 months recovery warranty
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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
Acacia dealbata, known as the Winter Mimosa or Florist's Mimosa, stands apart from the common acacia (of the Robinia genus). This evergreen bush is both vigorous and sensitive to severe cold and brightens gardens from late winter in mild climates. It offers a generous flowering of small, bright yellow pompon-shaped flowers with an unmistakable fragrance. Its finely divided, vibrant green foliage remains elegant even in winter. Grown in a large pot, this mimosa can easily be overwintered in colder regions. Best sown in spring and cultivated in well-drained, non-calcareous soil, in full sun.
Native to Australia, Acacia dealbata mimosa exhibits rapid growth. This botanical species was introduced to Europe in 1771. It has particularly thrived on the French Riviera, where acidic soils and the Mediterranean climate provide ideal conditions. However, its proliferation in this region has now made it an invasive species, posing a threat to local biodiversity. This small tree, with a single trunk and a dense, spreading silhouette, reaches an average height of 7 metres and a width of 6 metres when mature in open ground. Its flowering, from January to March, releases a well-known fragrance: a blend of fresh, herbaceous notes with a powdery honey-like undertone. These make excellent cut flowers. Its feathery leaves, divided into tiny leaflets, enhance its exotic charm.
Hardy down to -10°C (for the stump), this florist's mimosa still prefers milder climates, even very dry summers. In open ground, it can be planted as a specimen, in hedges, or in rows for its screening potential. It pairs well with other exotic-looking bushes, other Mimosas of course, but also escallonias and Olearias, for example. In containers, it remains smaller and can be protected from frost in a conservatory or greenhouse, much like citrus trees. This allows its beauty to be enjoyed even in colder regions. A reliable choice for adding a sunny, fragrant touch to your garden or terrace, even in the depths of winter.
Acacia dealbata seeds - Silver Wattle in pictures
Flowering
Foliage
Plant habit
Botanical data
Acacia
dealbata
Fabaceae
Silver Wattle, Mimosa, Blue wattle
Acacia decurrens var. dealbata, Racosperma dealbatum
Australia
Planting and care
To successfully sow Acacia dealbata, proceed in spring, between March and May, when temperatures stabilise and the risk of frost has passed.
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Seed preparation: Mimosa seeds have a hard coat that requires preparation to facilitate germination. Soak them in very hot water for 5 seconds, then immediately transfer them to ice-cold water and leave them to soak for 48 hours.
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Sowing: Sow the seeds in a light, well-draining substrate, kept moist. Place the seedlings in a warm environment, ideally between 20 and 25°C, to encourage germination, which usually occurs within 8 to 10 days.
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Transplanting: When the seedlings have developed 4 leaves, transplant them into individual pots. Wait until the risk of frost has passed before planting them out in the ground or continue growing them in pots.
Cultivation: Plant mimosa in a sunny spot, sheltered from prevailing winds, with well-draining, slightly acidic to neutral soil. Once well-rooted, mimosa tolerates drought well. Water moderately, avoiding excess water, which can lead to root rot. Acacia dealbata can withstand temperatures down to -10°C, especially when planted in a sheltered spot and very well-draining soil. In case of severe frost, the tree's aerial parts may be destroyed, but the stump can produce new shoots in spring.
Sowing period
Intended location
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).
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 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.
The harvest period stated on our website applies to regions in USDA zones 8b to 9a (East, South-East and southern coast: Eastern Leinster, County Wexford and County Waterford, Cork region: Dublin, Wexford, Waterford, Kilkenny, Cork). It will vary depending on where you live:
- In the Midlands and the inland plains: the Middle Shannon Valley, Westmeath, Offaly, Longford, Cavan and Monaghan (Athlone, Mullingar, Tullamore, Longford, Cavan, Monaghan), in USDA zones 8a to 8b, the harvest will be delayed by 1 to 2 weeks compared with the dates given. Far from the moderating influence of the sea, these plains experience late frosts right up until the end of spring. The heavy, peaty soils warm slowly here, and damp patches form pockets of frost. Wait until the soil has dried out and warmed up before planting, and protect young plants with a fleece on clear nights.
- In the Atlantic West and North-West: Kerry, Clare, Galway, Connemara, Mayo, Sligo and Donegal (Killarney, Ennis, Galway, Westport, Sligo, Letterkenny), in USDA zones 8b to 10a, the harvest will be delayed by 1 to 3 weeks compared with the dates given. Summers here are cloudier, rainier and windier than in the east, which slows down ripening and encourages late blight and other fungal diseases. Kerry and Clare are at the lower end of the range, whilst Mayo and Donegal, which are cooler and more exposed, are at the upper end. However, the mild coastal winters mean that leafy vegetables and root vegetables can be harvested at dates close to those indicated, or even earlier: shelter crops from the wind with hedges and grow heat-loving plants in greenhouses or polytunnels.
- In the highlands, above 200 m: the Wicklow Mountains, Macgillycuddy’s Reeks, the Galtee and Comeragh ranges, the Twelve Bens in Connemara and the Donegal highlands, in USDA zones 7b to 8a, the harvest will be delayed by 2 to 4 weeks compared with the dates given, depending on the altitude, taking care to beat the first early frosts, which may occur as early as the start of autumn. Wind, constant damp and late frosts lasting into early summer significantly shorten the growing season. Opt for sheltered, south-facing slopes, early-maturing varieties and growing under cover.
Depending on your garden’s aspect, these variations can range from one to two weeks. A frost-prone valley floor delays the harvest, whilst a south-facing wall brings it forward.
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