Cold or Slow Composting
Let me say this process is not like traditional composting where the organic waste is turned over manually every few weeks. The bag is filled and completely left to its own devices for a long period, with nature doing all the work without our intervention.This process is known as cold composting as the waste does not build up heat as we see in the normal composting process.
|Using builder bags for composting|
Collecting Garden Waste
Collect all the garden waste you can and shove it all in as hard as you can into the builders bag making sure all four corners are compacted as you fill it up. Mix some soil and grass and even perennial weeds but avoid woody material as this takes ages to rot down, if ever. If you find a few garden worms chuck them in as well as they will have a perpetual feast and help in the composting process.
Please don't forget to make a comment or ask a question before you go
|Long row of builders bags for composting|
Above you can see a row of builders bags filled with tons of garden waste composting away. The main problem with this is that are not exactly aesthetically pleasing making your garden or allotment appear as a building site. Most builders bags are in very bright colours so its is very difficult to miss them. Do what I didn't do and put them in a place where they are not so obvious.
The other thing is to make sure on the location of the filled bag as once it is full it becomes too heavy to move elsewhere.
|Garden waste for composting in builders bags|
|Covering builders bags for composting with carpet|
|Comfrey growing in builders bags|
|Nettles growing in builders bags|
In the unlikely event that you can't find any locally or don't want to scrounge from other people you can buy
This is the final result of all that garden waste going into the builders bag after about 15 months. I have now spread this around on the allotment. There are still weed seeds in this mix and may appear quite soon after spreading but are easy to hoe back into the soil.
Garden Shop from Amazon.co.uk
The pictures on this page with the garden-allotment.com logo can be used under Creative Commons but may not be altered or used for commercial reasons.