Acacia
Wattle, Mimosa
- Height × spread
- 2m – 25m × 1.5m – 15m
- Position
- Full sun
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
There are around 1200 species of Acacia and most of these are found in the tropics and in subtropical areas. They may be trees, shrubs or even woody vines. A number of them are hardy enough to grow outside in the warmer parts of the UK. They are also known in the florist trade (the yellow bobbled mimosa) and are a delight in Mediterranean countries. The delicate or intriguing foliage is also attractive, the foliage of Acacia dealbata forms appearing somewhat like a feather. These enjoy neutral to slightly acidic soil and are best grown against a south or west-facing wall.
- Flower colour
- Yellow
- Foliage colour
- Blue, Green, Grey, Purple
- Fruit colour
- Brown, Mauve, Purple
- Variegated
- No
- Scent
- Yes, some varieties
- Shape
- Bell, Fan, Round
- Height
- 2m – 25m
- Spread
- 1.5m – 15m
- Season of interest
- Spring, Summer, Autumn, Winter
- Evergreen
- Evergreen
- Garden style
- Winter garden, Small scale garden, Seaside garden, Scented garden, Mediterranean garden, Indoors, Exotic garden, Conservatory
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Clay, Gravelly soil, Loam (normal), Poor soil, Sandy soil
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil, Dry soil, Drought resistant
- Winter hardiness
- Varies, most are not hardy
- Borders & containers
- Borders
- Indoor light
- full light at all times
- Indoor temperature
- 0C minimum temperature
- Use for
- Wall cover, Hedge, Screening, Structural, Architectural, Bee attraction
- Hazards
- Yes, some leaves & stems are prickly/thorny
Spring
Spring - late · Indoors
Apply slow release fertiliser
Apply a slow release fertiliser which is spread around the root area of plants soon after they have come into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Indoors
Water regularly during growth
Water regularly while in growth.
Adopt a regime that means the plants are thoroughly watered every week so that they do not become dessicated. In hot weather watering may need to be more frequent, but less often in cool or moist conditions.
Spring - late · Outdoors
Feed young plants with slow release fertiliser
Spread a slow release fertiliser around the base of the plant to the edge of the foliage spread, so that it can feed the roots. It is helpful for this to be applied for several years.
This is a simple way to provide a nutrient boost until the plant becomes well established.
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Winter
Winter-Spring · Indoors
Water lightly in winter
The soil should remain just moist during the cold months when the plant is not in growth. Trickle a little water onto the soil surface every couple of weeks if the soil is dry. Do nothing if it is moist.
The roots remain active in winter and benefit from small amounts of moisture so they don't become completely desiccated.
Planting & general
Outdoors
Water some varieties differently
Some plants within this genus have additional requirements for water. It is best to look up your specific plant, or the species it belongs to for watering guidance.
Planting
Prune lightly after flowering
Give the plant a light haircut, generally tidying it up and removing any shoots that are wayward or damaged in any way. Dead flowers can be cut off if this is practical - the shrub may have too many, or they may be hard to reach.
Compost · Planting
Loam based houseplant compost for repotting
Buy container or house plant compost that is loam based if possible (i.e. is based on John Innes compost number 2 or 3. This contains more fertiliser and is better suited to established plants.
John Innes no. 1 has the lowest level of fertiliser and is used for seedlings and young plants, so is generally used where plants will be 'potted on' after a number of weeks.
Indoor temperature · Planting
0C minimum temperature
This plant requires a minimum temperature of 0 Centigrade.
Planting
Protect & support young trees
Attach a newly planted tree or tall shrub over 1m to a tree stake to give support and prevent windrock. Use a tree guard to stop tree bark being eaten by animals, especially in areas with deer - removing bark injures a tree and in worst case can kill it.
Indoor plant · Planting
Position in a sunny spot, close to window
Give this plant a position where there is as much light and sunlight as possible, within 2-3 metres of a sunny or bright window (one that is south, east, or west facing).
Found in
More Acacia
Acacia baileyana
Cootamundra wattle, Bailey acacia, Fernleaf, Golden mimosa, Bailey's thorn tree
Acacia baileyana 'Purpurea'
Bailey's purple mimosa, Cootamundra wattle, Bailey acacia, Fernleaf, Golden mimosa, Bailey's thorn tree
Acacia catechu
Catechu, Wadelee gum tree, Khair, Cutch, Black catechu
Acacia dealbata
Silver wattle
Acacia dealbata 'Gaulois Astier'
Silver wattle
Acacia longifolia
Sydney golden wattle, Sallow wattle
Acacia paradoxa
Kangaroo thorn, Hedge wattle
Acacia pataczekii
Wally's wattle, Pataczek's wattle