Making leaf mould & a recipe for potting compost

Leaf mould is a lovely old fashioned term, and brings to mind old Estate gardens and poorly paid, overworked garden boys.  It often appeared as a magic ingredient alongside weathered soot and wood ash and ground up toe nails!

But for us it is a natural plentiful resource and a vital ingredient in our potting composts. Over the years we have steadily reduced the amount of peat in our mixes and leaf mould is really useful.

The native trees that shed their leaves for us are Hazel, Birch and Oak, and of course we are a garden and we also have lots of Maples, Cercidiphyllum , Chestnut and Larch.

The leaves fall onto beds and along the paths.
This make for easy pickings and any dry day from late October onwards, there is often someone out there, with a bucket, a rake and a collection old compost bags.

Rebecca hard at work with the rake

The leaves are poured out into compost bins constructed from wooden pallets and when we have a bumper year, we make wire netting cages to take them all.  

There they sit for 2 years, slowly mouldering.
Each leaf has its own characteristics.
Oak is tough and takes 2 years to rot down.
Hazel is much softer and takes a year to 18 months.

Inevitably there is the odd holly leaf in the mould. They are a pain, literally.  They are always a surprise, and take forever to rot so they retain all of their prickles. Again natures wee joke.

Leaf mould is also a great mulch, in fact it is nature’s mulch in our woodlands
We like to return some to the beds every year.

Here’s our recipe for general purpose potting compost

Sieved Leaf Mould 1/3^rd
John Innes No3 1/3^rd
Grit/Gravel 1/6^th depending on the plants to use it
Fibrous Compost 1/6^th to 1/3^rd (You could use peat, but there are now many more sustainable alternatives available)

^{Happy gathering,  M}

^{For more advice about the benefits of leaves read Donald's Autumn Blog from 2009}

^{Love Your Leaves}