Acacia dealbata ' Rustica' (Grafted Mimosa)
Acacia dealbata is an evergreen tree or large shrub growing up to 30 m tall with smooth grayish trunk. It can tolerate poor soil but must be well drained. It dislikes excessive humidity and calcareous soil. It is often planted for its abundance of small, beautiful, bright yellow flowers and fast growth and is typically a pioneer species after fire. " Rustica" variety has a vigorous growth with a mid season flowering period. Leaves are bi-pinnate green.
- Landscape Information
- Botanical Description
- Horticulture Management
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By KENPEI (KENPEIs photo) [GFDL or CC-BY-SA-3.0], via Wikimedia Commons
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By Eugene Zelenko (Own work) [GFDL or CC-BY-SA-3.0-2.5-2.0-1.0], via Wikimedia Commons
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By J Brew (Acacia decurrens Green Wattle Tree) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons
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By JHenryW (Own work) [CC0], via Wikimedia Commons
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By KENPEI (KENPEIs photo) [GFDL, CC-BY-SA-3.0 or CC-BY-SA-2.1-jp], via Wikimedia Commons
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By Aelwyn (Own work) [GFDL or CC-BY-SA-3.0-2.5-2.0-1.0], via Wikimedia Commons
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French Name: Mimosa gréffé
Arabic Name: tbd
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Plant type: Tree
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Origin: Australia
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Heat Zones: 5 to 9
Hardiness Zones: 9 to 11
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Uses: Specimen, Erosion control, Reclamation
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Size/Shape
Growth Rate: Fast
Tree Shape: Round, Spreading
Canopy Symmetry: Irregular
Canopy Density: Medium
Canopy Texture: Fine
Height at Maturity: 8 to 15 m
Spread at Maturity: 3 to 5 meters
Time to Ultimate Height: 10 to 20 Years
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Notes
The root system produces suckers. It flowers in february in Lebanon, at a time where few trees are in bloom. It likes acidic soil. Usually it is grafted on Acacia retinoides's root stock. It is a very fast grower. Doesn't tolerate snow beacause it will break its branches. It is a specimen tree. In New Zealand it grows in waste places and along dry riverbeds, in South Africa it invades grasslands, roadsides and watercourses, and in California it grows in disturbed sites and along roadsides.
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Foliage
Leaf Arrangement : Opposite
Leaf Venation: Parallel
Leaf Persistance: Evergreen
Leaf Type: Bipinnately compound
Leaf Blade: 5 - 10 cm
Leaf Shape: Linear
Leaf Margins: Entire
Leaf Texture: Smooth, Fine
Leaf Scent: No Fragance
Color(growing season): Green, Blue-Green
Color(changing season): Green, Blue-Green
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Flower
Flower Size Range: 0 - 1.5
Flower Type: Panicle
Flower Sexuality: Monoecious (Bisexual)
Flower Scent: Pleasant (Sweet)
Flower Color: Yellow
Seasons: Summer
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Trunk
Trunk Susceptibility to Breakage: Suspected to breakage
Number of Trunks: Multi-Trunked, Can be trained to one trunk
Trunk esthetic Values: Not Showy
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Fruit
Fruit Type: Legume
Fruit Showiness: Yes
Fruit Size Range: 3 - 7
Fruit Color: Brown
Seasons: Spring
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Tolerance
Salt Tolerance: Poor
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Requirements
Soil Requirements: Loam, Sand
Soil Ph Requirements: Acidic, Neutral, Alkaline
Light Requirements: Full
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Management
Toxicity: No
Susceptibility to Pests and Diseases: No
Pruning Requirements: Little needed, to develop a strong structure
Fruit/ Leaves/ Flowers litter: Yes
Life Span: 25-50 years
Pests: Mites, Mealy-Bug
Plant Propagation: Seed, Cutting