But different mulches do different jobs.
Some are designed to last for years with barely any maintenance. Others break down quickly to improve the soil and feed plants. Some are ideal for veggie gardens, while others are better suited to decorative garden beds or native landscaping.
Pine bark mulch
Pine bark is one of the most popular and widely available mulches. It comes in different sizes, from fine to chunky.
Good for:
- Garden beds
- Around trees and shrubs
- Sloping areas
- Formal landscaping
- Long-lasting coverage
Pine bark is popular because it looks neat, suppresses weeds well and breaks down slowly. Chunkier bark tends to last longer, while finer grades create a more polished appearance.
Native mulch
Native mulch is usually made from mixed hardwood or eucalyptus materials and has a more natural, bush-style appearance.
Good for:
- Native gardens
- Waterwise landscaping
- Large garden beds
- Informal planting
It's generally coarser than decorative bark mulch, which helps it retain moisture well and stay cooler around plant roots.
Jarrah mulch
Jarrah mulch is known for its rich reddish-brown colour and chunky texture.
Good for:
- Decorative garden beds
- Native-style gardens
- Around hardy shrubs
- Feature landscaping
It's long-lasting, relatively heavy and less likely to blow around than lighter mulches.
Sugar cane mulch
Sugar cane mulch is lightweight, soft and easy to spread, making it especially popular in veggie gardens.
Good for:
- Vegetable gardens
- Herb gardens
- Flower beds
- Young plants and seedlings
It forms a dense layer over the soil that helps trap moisture and suppress weeds. Because it breaks down fairly quickly, it also improves soil as it decomposes.
Pea straw mulch
Pea straw is made from dried pea vines and is a favourite in gardens growing produce.
Good for:
- Vegetable patches
- Raised garden beds
- Fruit trees
- Seasonal planting
It helps keep soil cool and moist while adding organic matter back into the soil over time.
Lucerne mulch
Lucerne mulch is similar to pea straw but contains more nutrients, particularly nitrogen.
Good for:
- Leafy vegetables
- Fruiting crops
- Herb gardens
- Soil improvement
Because it breaks down quickly, it feeds the soil while acting as mulch.
Compost and blended mulches
Blended mulches combine organic compost material with mulch products and are often sold as black mulch or soil-improving mulch.
Good for:
- Improving poor soil
- New garden beds
- Flower gardens
- Seasonal planting
These mulches help improve water retention and soil structure while also protecting the soil surface.
Gravel and stone
Gravel, pebbles and crushed stone are commonly used in modern landscaping and low-maintenance gardens.
Good for:
- Succulent gardens
- Decorative areas
- Courtyards
- Pathways
- Contemporary gardens
Stone mulch lasts for years and requires very little maintenance, although it won't improve soil health like organic mulches do.
Choosing the right mulch
If you want a mulch that lasts for a long time with minimal upkeep, pine bark, native mulch and woodchips are all solid choices.
For vegetable gardens and areas where soil improvement matters most, sugar cane, pea straw and lucerne are often better options because they break down quickly and feed the soil as they decompose.
And for decorative or low-maintenance spaces, gravel and stone mulch can create a clean, structured look without needing regular replacement.
