Eucalyptus Mulch Pros and Cons

25 September 2023 by
Harley Thompson

What is Eucalyptus Mulch?

Eucalyptus mulch is derived from the Eucalyptus tree, primarily Eucalyptus globulus, which is native to southeast Australia. This organic mulch is known for its natural, earthy brown tone and is a fine gum tree mulch without any leaf matter. It offers a refined appearance, making it a popular choice for those seeking a neater look in their gardens. Eucalyptus mulch not only provides aesthetic benefits but also contributes to the growth and development of plants by offering a rich nutrient content.

Pros of Eucalyptus Mulch:

  1. Aesthetic Appeal: Eucalyptus mulch has a natural, earthy brown tone that looks great in any landscape, providing a rich background for gardens.
  2. Sustainable: It's a long-lasting organic mulch that decomposes slower than other varieties, making it a sustainable choice.
  3. Soil Improvement: Despite its slow decomposition, it easily breaks down into the soil, releasing vital nutrients that promote plant growth and drainage.
  4. Water Retention: Helps in improving soil condition, increasing water retention, and regulating soil temperature.
  5. Pest Repellent: Eucalyptus is known to repel certain pests, including fleas, due to its distinct aroma.
  6. Weed Control: It can be used to suppress weed growth, reducing the need for frequent weeding.
  7. Natural Insect Repellent: Eucalyptus mulch can deter certain insects, providing a natural repellent.
  8. Drought Resistance: In areas with low rainfall or high daytime temperatures, eucalyptus mulch can prevent water loss and moderate soil temperatures.
  9. Enriches Soil: As it decomposes, it enriches the soil with nutrient-rich organic materials.
  10. Attractive Appearance: It provides a neat 'finishing touch' to garden beds, enhancing the overall look of the garden.

Cons of Eucalyptus Mulch:

  1. Repels Beneficial Insects: While it repels pests, it might also deter beneficial insects.
  2. Chemical Release: Eucalyptus mulch may release chemicals into the soil that could be harmful to certain plants.
  3. Limited Availability: Depending on the region, eucalyptus mulch might not be readily available.
  4. Decomposition: Even though it decomposes slower than other mulches, it still requires replenishment over time.
  5. Excessive Moisture: If applied excessively, it might retain too much moisture, which can be detrimental to certain plants.

Our Eucey Mulch:


Our Eucey Mulch  offers a visually appealing, dark hue that seamlessly complements and elevates the aesthetic of any garden bed. Made from a blend of finely ground natural wood and organic matter, this mulch strikes the perfect balance in particle size, ranging from 1mm to 15mm. On average, you'll find that most particles hover between 6mm to 10mm.

Learn more

Eucalyptus mulch offers numerous benefits, from enhancing soil health and water retention to deterring pests and providing an aesthetically pleasing garden appearance. While there are certain drawbacks, such as potentially repelling beneficial insects and releasing chemicals that may not suit all plants, the overall advantages significantly outweigh the negatives. Given its multifaceted benefits, eucalyptus mulch is a commendable choice for gardeners seeking a sustainable and effective mulching solution.

About the Authors

Harley Thompson

Harley is a second-generation journalist with a passion for gardening and a keen eye for detail.  Currently studying a double degree of Commerce and International relations at Monash University, Harley loves learning new things. He specialises in creating engaging content about garden advice, using experience in store, with our team and customers. His writing blends his academic knowledge with practical experience, offering informative and inspiring articles.    

Greg Fitzgerald

Greg Fitzgerald is a qualified horticulturalist with more than 30 years in the industry and 16 years at Daisy's Garden Supplies. He manages production and procurement for all our products, ensuring high-quality gardens and landscapes for our customers. His vast experience and qualification in horticulture make him a key asset to Daisy's. He offers valuable insights and a wealth of knowledge in terms of mulches, soils, pebbles and rocks, composts and many other products.