- Joined
- Oct 16, 2012
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- Fareham, Hampshire UK
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Potting compost is 60% well sieved garden compost,30% well sieved leafmould and 10% vermiculite or grit with a sprinking of fish, blood and bone added when I can be bothered - but I must admit that most of the time I tend to buy decent branded compost - you get what you pay for. I keep getting problems with the likes of B & Q's own label and cheaper ones. I've just used a bag of Verve that developed a white mould on the top of the pots. Not good.I've thought about doing something similar, but making a rotating sieve in the style of a cement mixer, so the raw material gets shovelled into the front of the "barrel" and the sieved stuff drops out underneath. Obviously a tipping feature would be useful too so the big stuff could be dumped out as well.
Last year I collected twelve dumpy bags of fallen leaves, but I've been using them as a "brown" to mix into the compost bins. Carbon-rich material always seems in short supply compared with green nitrogen-rich stuff.
What's your potting compost recipe? I'm still looking for a viable alternative to commercial composts that usually contain either peat or coir (or both). I tried green waste compost this season and whilst it did work I can't really say that I was happy with it. I don't think the plants did as well as they do in commercial compost.
James
The only problem I get with my own made potting compost is weeds ... I don't think my heaps get hot enough to kill som of the seeds that get in there, I keep looking at redneck methods of heat sterilisation but it seems they are all either decidedly dangerous or are going to cost a fortune in bottled gas.
I have a spare Belle Cement mixer (don't ask !) and I considered converting that to a rotary sieve for compost by replacing some of the drum with mesh welded in but ... for the amount I get the barrow sieve does the job.