The use of organic mulch is recommended to help with weed suppression and retain soil moisture during dry summer months.
Landscaping tips part 3: Planting and mulching.
Once you have selected your plants and design, remove any weeds and cultivate lightly. Add imported organic material such as compost and/or imported topsoil to assist with plant establishment and moisture retention. Before planting, water both the hole and pot thoroughly. Remove the plant gently from the pot supporting the root system. Inspect the root system and to any girdled roots either tease gently or sever cleanly. Plant so that the top of the potted soil sits flush with the surrounding soil, and backfill gently pushing the soil in place. Create a well around the plant and water.
The use of organic mulch is recommended to help with weed suppression and retain soil moisture during dry summer months. A layer of decomposed bark mulch is ideal, spread evenly to depth of between 50-75mm. Other suitable mulches include decomposed granite, pebbles or scoria, mushroom products and sugar cane mulch.