Trees & Verges

The City of Unley is known for its wide, tree lined streets and planted verges.

Unley's Street Trees

Council have an arboriculture team who look after established trees and nurture young trees in Unley’s streets and reserves.

The City of Unley covers an area of about 14 square km where 26,000 to 27,000 public trees grow. There are around 23,000 street trees and 3,000 to 4,000 trees in parks and reserves.

We encourage you to water your street trees during times of hot weather. Please contact us if you believe the trees need additional care.

A typical Unley streetscape features beautiful leafy tree borders. 69 per cent of species are exotic, 30 per cent are native and 1 per cent are indigenous to the local area.

Most of Unley's street trees are mature, with 200 to 300 new trees planted each year.

The estimated economic value of street trees in Unley is $150 million.

Ridge Park Trees

Multiple Benefits of Trees at Ridge Park

A risk assessment of the trees at Ridge Park was recently undertaken, and while we were there we ran the information through i-Tree Eco assessment to learn more about how our trees benefit the park and the ecosystem services they provide.

View the full Ridge Park Tree Report on the i-Tree website.

Ridge Park Tree Facts
  • Number of trees: 683 (58 species)
  • Total canopy area: 40,226m2 (equivalent to ~77% of total park area)
  • Most abundant and diverse genus: Eucalyptus (274 tees; 12 species)
  • Proportion of small trees (<20cm diameter breast height, DBH): 53%
  • Proportion of very large trees (>100 DBH): 4.25%
  • Structural value: $3,093,814
  • Pollution removed: 203.56 kg/yr
  • Carbon stored: 342 tonnes
  • Carbon sequestered: 10.08 tonnes/year
  • Avoided storm water run-off: 254.5 m3/yr

Trees at Ridge Park

Around Powerlines

Vegetation needs to be cleared from around powerlines to avoid power outages through damaged lines.

It is a legal requirement that electricity network operators maintain safe clearance zones around powerlines and trees. Residents are also responsible for pruning trees around lines within their own private property.

For detailed information on vegetation clearance near powerlines visit the SA Government’s website.

Tree Tags in Parks

Council are using tree tags to highlight the benefits of trees and increase awareness of their value to the community.

Each tag has information specific to its tree such as species name, height, ability to remove pollution from the air and more.

There are 80 tags spread across the following six locations:

  • Goodwood Oval - Curzon Avenue, Millswood
  • Page Park - Corner Cross Road and East Avenue, Clarence Park
  • Unley Civic Centre - 181 Unley Road, Unley
  • Heywood Park -  Addiscombe Place, Unley Park
  • Windsor Street Linear Trail - Windsor Street, Fullarton
  • Fullarton Park - Corner Fisher Street and Fullarton Road, Fullarton

Trees receiving the tags were selected with the help of local volunteers.

All tags have been printed on 100% recycled plastic materials to ensure they are weatherproof.

Please head out and find some tags and learn about the wonderful things our park trees provide us!


Street Tree Removal

The City of Unley recognises the important contribution trees and vegetation make to the community.

These assets support flora and fauna, address the impacts of climate change, add character to our streetscapes and increase property values.

We commit significant resources, and encourage the community to play an important role, to ensure our City has the best possible streetscapes and reserves.

Trees are not permanent fixtures though. There comes a time in their life cycle when trees decline to a stage where they must be removed or when disease or damage means that replacement is the most responsible long-term approach.

In our urban environment, the removal of trees is sometimes necessary for property development or the installation of infrastructure.

To lodge an application for the removal of a street tree, please complete a Street Tree Removal Form.

For further information, please view Council’s Tree Strategy and Tree Policy which aim to ensure these important assets are protected and enhanced for current and future generations.


Greening Verges

Council encourages residents to take ownership of their verge areas and boundary strips as this enhances our streetscapes and the kerb appeal of residences throughout the City.

In addition to extra greenery, landscaping a verge contributes in many positive ways to your street by:
  • providing a healthier environment for street trees
  • softening the effect of hard surfaces such as roads and footpaths
  • improving air quality
  • working at natural air conditioners through moisture in leaves
  • reducing stormwater run-off, and
  • providing habitat for small creatures like bees and butterflies.
  • First Steps to Greening Your Verge
    • Read our Verges Planting Guide for ideas and suggestions on planting your verge.
    • If you currently have dolomite that needs to be removed and replaced with soil, decide if you plan to complete this work yourself, engage a landscape contractor or have City of Unley complete the work for a fee subject to a quote.
    • Prior to starting any works, fill in an Alter a Public Road Application Form and tick the create nature strip box.

    Please note, even though verges are classified as part of a public road under the Local Government Act 1999, and as such are owned by Council, your property can benefit directly from improved kerb appeal in your street. 
  • Display Verges
    Our display verges at Edmund Avenue showcase a variety of plants and treatments that you could use to transform your verge into an attractive garden feature.

    Take a stroll down Edmund Avenue, Unley and be inspired by contemporary, cottage, natural and formal layout examples, including different path ideas. All meet the guidelines of safe plant choices and low plant heights to ensure good sight lines for road users.
  • Verges Planting Guide

    The Unley Verges Planting Guide provides planning advice, landscaping rules, garden design ideas and plant suggestions for greening your nature strip.

    Please read this guide carefully to make sure your project will not inadvertently harm street trees or other users of the area.

    Planting Guidelines Summary
    1. Plantings are to be kept lower than 600mm in height to ensure adequate vision for vehicles entering and leaving driveways.
    2. Inform Council if you are planning on installing irrigation to the verge. The pipework will need to go under the footpath and Council will need to be aware in advance
    3. Locate underground services like pipes and cables before undertaking any type of works involving digging in the ground. Contact Dial before You Dig on 1100 before you start.
    4. During landscaping works, special consideration should be given to preserving the vital root system of any trees within the verge.
    5. Keep tools and other items off the road and footpath to prevent passers-by from tripping on them. The area must be kept safe at all times.
    6. To prevent stormwater pollution, materials such as soil or mulch must be swept up from hard surfaces such as the footpath and gutter.
    7. After planting it will be your responsibility to care for your new verge garden. Keep them watered, free from weeds and pruned if they start spreading too high or onto the footpath.