Tree Mulching in Perth: Why It's the Best Thing for Your Garden
If you garden on the Swan Coastal Plain, you're gardening on sand. Water runs straight through it and summer bakes it. Mulch is the single cheapest fix for both problems - and tree work is a ready source of it.
Why mulch matters so much in Perth
Our sandy soils don't hold water or nutrients well, and our summers are long and hot. A decent mulch layer changes the game:
- Cuts water use - it slows evaporation, so the water you do put on actually reaches the roots.
- Keeps roots cool - bare sand can get scorching; mulch insulates.
- Suppresses weeds - fewer weeds competing for that scarce water.
- Feeds the soil - organic mulch breaks down slowly into the kind of structure sandy soil badly needs.
- Stops crusting and run-off - so summer watering soaks in instead of sheeting off.
How to use it properly
| Get right | Why |
|---|---|
| 75-100mm thick | Thinner won't hold moisture; thicker blocks water |
| Keep clear of trunks | Mulch against bark causes collar rot |
| Top up yearly | Organic mulch breaks down - that's the point |
| Coarse woodchip for trees & beds | Lasts longer, lets water through |
The free-mulch trick
Here's the part most people miss: when a tree is chipped on site, all that woodchip has to go somewhere. Rather than pay to cart it away, many of our customers ask us to leave it as mulch. You get a free soil improver, and the green waste doesn't go to landfill. Just mention it when we quote.
We also offer dedicated mulching services if you want a load delivered and spread without removing a tree.
Get mulch sorted
Having tree work done? Ask San's Tree Service to leave the chip as mulch, or arrange a delivery. Free quotes - call (08) 9560 6103 or see the suburbs we cover.
Frequently asked questions
Is mulch worth it in Perth?
Absolutely. In Perth's sandy soils and hot dry summers, a good mulch layer dramatically cuts water loss, keeps roots cool, suppresses weeds and slowly improves the soil. It's one of the highest-value things you can do for a garden here.
How thick should mulch be?
Aim for about 75-100mm. Too thin and it won't hold moisture or block weeds; too thick and water struggles to reach the roots. Keep mulch a few centimetres clear of trunks and stems to avoid collar rot.
Can I get free mulch in Perth?
Often, yes. When we chip a tree on site, the woodchip has to go somewhere - many customers ask us to leave it as free mulch. Just mention it when we quote and we'll spread or pile it for you.