You can save dollars each year on your save time water bill Mulched gardens can reduce evaporation save money - so there’s no need to water so often. stop salt You can save weeding time A layer of mulch discourages weeds from growing – that means more leisure time for you! You can feel a sense of satisfaction – By helping your community to reduce the cost of salinity to Wagga Wagga. Salinity costs Wagga Wagga 3. 2 million dollars each year. One of the causes is overwatering. For further information contact:: Wagga Wagga City Council ph 69 269511 Designed and produced by L. Crosbie, D.L.W.C. Wagga Wagga. 1999. Why use mulch? Mulch is a layer covering the soil surface protecting it from the damaging effects of wind, sun and water. Some of the benefits are: A General Guide to Mulches Mulch type Cost Depth Advantages / Disadvantages reduce water evaporation. Living Plants used Varies per Full height Excellent feeder – groundcovers that fix nitrogen to the soil eg. suppress weeds which compete for as Mulch plant Comfrey, daisies, legumes, dill, thyme, sage, nasturtiums, bulbs. Allow to grow to full height. water regulate soil temperature by reducing Compost Free or $15 10 cm Make your own or purchase. Excellent feeding mulch for soils & summer heat and winter cold per m2 plants. Takes time to make. increase water infiltration by trapping Lawn clippings Free 4 cm Convenient. Rapid decomposition speed. Green grass adds water on the surface and holding it until nitrogen. Do not allow to form a mat. it has time to be absorbed Leaves Free 10-15 cm Adds nutrients – can be mixed with other materials. Better if supply nutrients and organic matter to aged first. Leaves which are left to decompose before using are soils called Leaf Mold. These make an excellent feeding mulch (use like a minimise erosion from bare soils compost). recycle garden waste Straw Varies 10 cm A good mulch, however need to add nitrogen. Should be seed-free. Birds dig up. Highly flammable How to apply Lucerne hay From $5 per bale 10 cm A good mulch. Rapid decomposition. Adds nitrogen. Should be seed free – 2nd or 3rd cut is ideal. Birds may dig up. mulch Pea straw From $4 per bale 10 cm A good mulch. A few peas will grow up but simply lay germinated peas on top of mulch. These will add nitrogen. Birds may dig up. Mulch according to individual preference Worm castings Free if own 1 cm Excellent feeder; difficult to produce large quantities. Will blow & Consider: appearance, garden type & cost. worm farm splash outdoors unless combined. Newspaper free Not an attractive appearance, but can be used under mulch or 1. The best time of year to apply mulch is mixed with other materials. Birds may dig up. in spring when the soil is beginning to Tree trimmings Free 7-10 cm A good mulch using recycled prunings. Need to own or hire a warm. mulcher. Birds can dig up. 2. Water your garden well before applying. 3. Ensure you leave a small gap between Bark chips $18 - $30 5-7 cm A good mulch. Better aged. Birds may dig up. Needs freshening per m3 about every 2 years. mulch and plant stems to avoid stem rot. 4. Don’t allow your mulch to form a hard Coloured stones $26 - $108 5-10 cm Used around trees & shrubs on gardens which aren’t cultivated. crust - water and air need to circulate. per m3 Problems with weeds – unless a layer of black plastic is used.
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