Thursday 11 September 2014

Leafmould: Making Fallen Leaves Useful

The serene orange and yellow hues of leaves on lazy mild evenings is what earns Autumn its place as my most-loved season. The low sun searing through the curtain of illuminated foliage is blinding and beautiful. Too bad the wind usually picks up and strips the trees bare in a matter of days. And with the rain, soon what once crunched deliciously underfoot now sticks to your boot like sludge threatening to slip you up.


Instead of sweeping up the leaves and adding them to the compost heap, you can isolate them to make your own soil conditioner called leaf mould. By digging the finished product into your soil, you will improve it. For an acidic mix, use pine needles instead of leaves (they are shed all year around but particularly in the Spring). The leaf mould can also be used as a mulch or soil coverer.


The easiest process is pack the leaves into a black refuse bag. If the leaves are dry, add some water to accelerate the decomposition process and tie. Leave for at least one year, preferably two. Indeed it is not quick gratification but the effort required is minimal.


The photo below is of a bag I ripped open today, which had been sitting there for one year. The leaves have broken down into papery sheets. Some larger leaves could break down further but it is certainly useable. 








Leaf mould is not particularly nutritious but it's crumbly texture will help loosen your soil to move it closer to that illusive "friable" state. It also provides a perfect habitat for beneficial soil life like earthworms and fungi. It is extremely moisture retentive, making a great mulch. If added to the compost heap, it brings good levels of carbon helping achieve that perfect carbon:nitrogen ratio which can be difficult to perfect with the usual high levels of nitrogen in most plant life.


Make it. You've no excuse.


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