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1.Acacia Longifolia — Overview
Acacia longifolia, commonly known as Sydney Golden Wattle, is a resilient evergreen tree belonging to the Fabaceae (or Leguminosae) family. This species typically grows up to 9 meters (29 feet) tall with a spread of 6 meters (19 feet), forming a rounded canopy. Its characteristic foliage consists of elongated, dark green phyllodes, which are flattened leaf stalks that function as leaves.
In late winter to early spring, the tree bursts into a profusion of bright yellow, rod-like flower spikes. These spikes are often fragrant, emitting a violet-like scent. These vibrant blooms are rich in pollen and are a significant ecological feature.
Sydney Golden Wattle is native to the coastal and near-coastal regions of eastern Australia, including New South Wales, Queensland, South Australia, Tasmania, and Victoria. There, it thrives in sandy, nutritionally poor, well-drained soils. It tolerates a range of pH levels from mildly acidic to mildly alkaline, as well as saline conditions.
This robust species requires full sun and shows considerable tolerance to strong winds, making it suitable for exposed sites. However, it is not ideal for direct maritime exposure. Its medium growth rate and hardiness to USDA zones 10-11 (UK zone 8) allow it to withstand short periods of frost, and if cut back, it resprouts from the base.
Beyond its ornamental appeal, Acacia longifolia plays a crucial ecological role as a nitrogen-fixing plant, enhancing soil fertility through its symbiotic relationship with soil bacteria.
Trusted Scientific References
Authoritative external sources for Acacia longifolia:
Acacia Longifolia should be interpreted through verified botanical identity, practical care, and responsible safety language. This recovery note adds the missing context needed for a complete profile: match light to the plant's habit, use well-drained soil, water according to season, and avoid unsupported medicinal or edible claims. For publishing, the plant can be presented as a source-backed garden plant with clear care guidance, common problem diagnosis, and conservative safety wording.
1.1.Acacia Longifolia — Key Features
- Botanical Name — Acacia longifolia (Andrews.)Willd.
- Common Names — Sydney Golden Wattle, Acacia.
- Family — Fabaceae (Leguminosae).
- Native Range — Eastern Australia (NSW, QLD, SA, TAS, VIC).
- Growth Habit — Evergreen tree, reaching up to 9 meters tall.
- Edible Parts — Flowers, roasted seeds, roasted seedpods.
- Ecological Role — Nitrogen fixer, excellent for soil stabilization.
- Ornamental Value — Striking yellow flowers, suitable for screens and hedges.
- Hardiness — Tolerates mild frosts (USDA zones 10-11, UK zone 8).
- Soil Adaptability — Thrives in poor, sandy, well-drained, and saline soils.
1.2.Acacia Longifolia — Quick Summary
- Sydney Golden Wattle is an Australian native evergreen tree.
- Known for vibrant yellow flowers and crucial ecological roles.
- Edible flowers, roasted seeds, and seedpods offer significant nutritional value.
- Valued for soil stabilization, hedging, and nitrogen fixation.
- No known specific traditional medicinal uses attributed to this species.
2.Acacia Longifolia — Scientific Identity
3.Acacia Longifolia — Categories & Tags
4.Acacia Longifolia — Appearance & Identification
5.Acacia Longifolia — Water Requirements
- Climate Adaptation — Thrives in warm temperate to subtropical climates (USDA zones 10-11, UK zone 8), tolerating short periods of frost down to -10°C.
- Soil Preference — Prefers light, sandy, well-drained soils; adaptable to nutritionally poor, mildly acid, neutral, basic, and saline soil conditions.
- Light Requirements — Demands full sun exposure for optimal growth and flowering; cannot tolerate shaded environments.
- Water Needs — Prefers dry to moist soil conditions, indicating good drought tolerance once established but benefits from moderate watering.
- Wind and Salt Tolerance — Exhibits fair resistance to strong winds and can tolerate some soil salinity, making it suitable for coastal plantings, but not direct maritime exposure.
- Propagation — Primarily propagated from seeds, which often benefit from pre-treatment like scarification or hot water immersion to improve germination rates.
- Planting Considerations — Dislikes root disturbance, so careful handling during transplanting is crucial; often planted for erosion control, screens, or hedges.
- Nitrogen Fixation — As a legume, it fixes atmospheric nitrogen, enriching soil fertility and benefiting neighboring plants without requiring heavy fertilization.
Reviewed by the Flora Medical Global Botanical Review Panel
Multi-disciplinary editorial group · Botany · Ethnobotany · Herbal-medicine literature
Who reviewed this: This page was checked by the Flora Medical Global Botanical Review Panel — an in-house editorial group of botany graduates, ethnobotany researchers, and horticulture practitioners who collectively maintain our 7,000+ plant encyclopedia. Meet the team.
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1. Taxonomic verification
Scientific names and synonyms cross-checked against Kew POWO, World Flora Online, and The Plant List.
2. Phytochemical & medicinal cross-reference
Active compounds, traditional uses, and reported activities are cross-referenced with PubMed, USDA Dr. Duke's database, and peer-reviewed ethnobotanical literature.
3. Conservation & distribution check
Distribution, ecology, and conservation status confirmed against GBIF occurrence records and the IUCN Red List.
4. Editorial & safety review
Every entry passes an editorial pass for clarity, originality, and safety notices (toxicity, contraindications, dosage caveats) before publication.
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Editorial Note: This page is for educational and plant care purposes only.
Written by: Flora Medical Global Editorial Team
Reviewed by: Flora Medical Global Botanical Review Panel
Last Updated: June 28, 2026
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