Is Lucerne a good mulch?
Similarly one may ask, what is the best mulch for Perth gardens?
Wood and bark based mulches are the most prevalent mulch types used in Perth landscaping. When looking for a suitable wood or bark based mulch for your garden, be sure to opt for a medium to coarse grade mulch, which won't absorb water, but rather enable it to reach the plants root zone where it is most needed.
Consequently, what types of mulch should I use?
There are two basic kinds of mulch: organic and inorganic. Organic mulches include formerly living material such as chopped leaves, straw, grass clippings, compost, wood chips, shredded bark, sawdust, pine needles, and even paper. Inorganic mulches include black plastic and geotextiles (landscape fabrics).
Within 3 years it will be fully broken down and providing excellent nutrients to the soil. Treated woodchips will take longer, around 4 years to fully break down, with the start of decomposition occurring around 2 years after the mulch has been laid.