MAXIMUM TRUCKLOAD is 10 cubic metres (m3) PER DELIVERY for this product.

If you need more than a Truckload, please complete your first order and then make a SEPARATE ORDER.
 
 DELIVERY 
Prices exclude delivery costs. The delivery cost is calculated at checkout based on your address and the distance required to deliver the products to you.
 
PASTEURISED MULCH
 
Pasteurised Mulch is a superb product for Perth gardens and landscapes.
 
 
What is Pasteurised Mulch? 
Pasteurised Mulch is a type of organic mulch that has undergone heat treatment (pasteurisation) to kill weed seeds, pathogens, and pests. Unlike raw mulches, pasteurised mulch is clean, safe, and more stable, making it an excellent choice for gardens concerned about introducing weeds or diseases.
What is Pasteurised Mulch?
Pasteurised Mulch is a type of organic mulch that has undergone heat treatment (pasteurisation) to kill weed seeds, pathogens, and pests.
Unlike raw mulches, pasteurised mulch is clean, safe, and more stable, making it an excellent choice for gardens concerned about introducing weeds or diseases.
 
What is Pasteurised Mulch Made From?
Pasteurised mulch is usually made from:
Shredded green waste — prunings, branches, leaves
Bark fines or wood chips
Composted organic matter in some blends
 
These materials are:
Shredded and composted, then
Heated to at least 55-65°C (pasteurisation) for a minimum period to kill weed seeds and pathogens
 
The final product is a stable, fibrous mulch with a pleasant, earthy smell.
 
What is Pasteurised Mulch Ideal For in Perth, WA?
Pasteurised Mulch is ideal for:
✅ Garden beds — keeps soil cool and retains moisture
✅ Around shrubs and trees — reduces water loss and weeds
✅ Native gardens — safe for Australian natives as it’s low in nutrients compared to compost
✅ Vegetable beds — when used as surface mulch (not mixed into soil)
✅ Landscaping projects — neat, uniform look
 
Benefits in Perth:
Great for Perth’s sandy soils, where water retention is crucial
Helps reduce watering costs in hot WA summers
Lowers soil temperatures and protects plant roots from harsh sun
 
Recommended Thickness for Pasteurised Mulch Layers
General garden beds:
🔹 50–75 mm (5–7.5 cm) thick
Around trees and shrubs:
🔹 75–100 mm (7.5–10 cm) for extra weed suppression
Vegetable gardens:
🔹 Thin layer of 30–50 mm (3–5 cm)
 
Avoid piling mulch against plant stems or trunks — keep a gap of 5–10 cm to prevent rot.
 
How to Maintain Pasteurised Mulch
Top up annually — mulch decomposes over time, so add fresh mulch to maintain desired thickness.
Check for compaction — fluff it up occasionally with a rake to let air and water penetrate.
Monitor weeds — though pasteurised mulch reduces weeds, some seeds can still blow in.
Water mulch in after spreading — helps settle it and prevent blow-away in windy Perth weather.
Keep clear of stems and trunks to prevent rot and pest issues.
 
Key Benefits of Pasteurised Mulch in Perth:
✅ Clean and weed-free
✅ Excellent moisture retention
✅ Suppresses weeds naturally
✅ Improves soil structure as it breaks down
✅ Safe for native and ornamental gardens
✅ Reduces heat stress on plants in Perth summers
 
Pasteurised Mulch vs. Raw Mulch:
Pasteurised mulch → heat-treated, cleaner, fewer weed seeds
Raw mulch → cheaper, but higher risk of weeds and disease
 
Are you planning to mulch a specific area in your Perth garden? Let us know the size, and we will help calculate how much mulch you’d need!
 
Have a question about this product? Give us a call on 08 9454 5033.