Native vs Exotic Trees: Long-Term Maintenance Costs & Environmental Impact in WA

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Western Australia’s climate presents unique challenges for tree care, particularly with its dry summers, sandy soils, and occasional strong winds. Choosing between native and exotic tree species affects not only your property’s appearance but also its long-term maintenance requirements and environmental footprint.

At Lumberjacks, our arborists frequently assist Perth homeowners, landscapers, and property managers in selecting and maintaining trees that balance beauty, cost-efficiency, and sustainability.

Understanding the Difference Between Native and Exotic Trees

Native trees are species that naturally occur in Australia, adapted to local conditions and ecosystems. Examples include jarrah, marri, and paperbark.

Exotic trees, on the other hand, originate from other regions or countries and are introduced for their ornamental value, shade, or unique appearance  like jacarandas, liquidambars, and olive trees.

Both types have benefits, but they differ significantly in their care needs and ecological effects.

Maintenance Costs and Environmental Comparison

Factor Native Trees (WA Species) Exotic Trees (Imported Species)
Water Requirements Low; drought-tolerant once established High; require regular irrigation, especially in summer
Soil Adaptability Thrive in sandy or nutrient-poor soils Often need fertilisers and soil amendments
Pest & Disease Resistance Naturally adapted to local pests Susceptible to WA-specific pests and fungi
Growth Rate Moderate to slow Often faster, but can become invasive
Maintenance Costs Lower ongoing costs; occasional pruning Higher; frequent pruning and fertilisation needed
Environmental Impact Supports local wildlife and biodiversity Can disrupt native ecosystems
Lifespan Long-lasting and resilient Shorter lifespan in WA’s harsh conditions


In general, native trees require less water, care, and maintenance, making them ideal for Perth’s climate and long-term sustainability goals.

Native Trees: Long-Term Benefits

1. Low Water Use – Native species have evolved to survive dry conditions, making them more efficient during Perth’s hot summers.

2. Lower Maintenance Costs – Minimal watering, reduced fertiliser needs, and infrequent tree pruning save both time and money.

3. Wildlife Support – Many native trees provide shelter and food for birds, insects, and pollinators, contributing to WA’s ecological balance.

4. Strong Local Adaptation – Native species are resistant to local pests and diseases, reducing the need for chemical treatments.

Common WA native species recommended for properties include jarrah, tuart, sheoak, and marri  all of which provide shade and durability with minimal upkeep.

Exotic Trees: Appeal and Challenges

While exotic trees can add beauty and diversity to your landscape, they often require more intensive maintenance:

• Frequent watering and feeding – Many exotics struggle in Perth’s dry soil without regular irrigation.

• Higher risk of root invasiveness – Some species, like figs and camphor laurels, can damage pavements, pipes, or foundations.

• Increased tree pruning needs – Exotic trees tend to grow quickly and unevenly, requiring regular tree pruning to manage shape and safety.

• Greater susceptibility to stress – Without the right care, exotics may suffer leaf burn, dieback, or pest infestation.

For those who prefer the look of exotic trees, pairing them with consistent tree mulching, watering, and professional care can help reduce long-term costs.

Balancing Aesthetics and Sustainability

The best approach is often a balanced mix of native and exotic species, combining durability with visual appeal. Use native shade trees to lower water use and maintenance costs, and add a few exotic accent trees for seasonal colour and decorative value.

Working with arborists ensures the right selection, placement, and care to prevent root damage, overcrowding, or ecological imbalance.

How Arborists Help Reduce Costs and Risks

Professional maintenance extends the lifespan and safety of any tree species. Services such as tree risk assessments, tree pruning, tree removal, and stump grinding ensure each tree remains healthy and structurally sound.

At Lumberjacks, we also provide tree mulching to improve soil health, retain moisture, and protect trees from Perth’s extreme weather.

Choose Trees That Last  and Keep WA Green

Whether you prefer hardy natives or striking exotics, thoughtful maintenance makes all the difference. By choosing the right species and care plan, you can reduce costs, support biodiversity, and keep your property safe and sustainable.

Contact Lumberjacks today to discuss your landscape needs or book a tree risk assessment with our qualified Perth arborists.

Frequently Asked Questions

  • Are native trees always better than exotic trees?
    • Not always, while natives are more sustainable, exotic trees can offer unique aesthetics and faster growth when managed correctly.
  • Do native trees need less maintenance?
    • Yes. Most native trees require minimal watering and fewer tree pruning sessions compared to exotic species.
  • Can exotic trees become invasive in WA?
    • Yes, some exotic species spread rapidly or damage structures if not properly managed through pruning and monitoring.
  • How can I reduce maintenance costs for exotic trees?
    • Regular tree mulching, irrigation, and professional care such as tree pruning help keep exotic trees healthy.
  • What services help maintain tree health in WA?
    • Tree pruning, tree risk assessments, stump grinding, and tree mulching all help ensure safety, longevity, and cost-efficiency.

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