Posted: 15/06/2014 at 22:51
I agree with Mike Allen, I have used a lot of Westlands composts this year and yes, they have been very good but I've only bought the Westlands because I couldn't find any JAB. Last week I visited a local nursery I have never been to in the 48 years we've lived here and they had plenty of JAB 100 litre bales in stock @ £6.00 each so I immediately bought 1 multipurpose and 1 bark chips to try.
I was able to see the composition of the MP because the nursery had a GH with about a dozen 100 litre bales laid on the GH floor, tops cut out and 4 tomato plants growing in each. The plants looked fantastically healthy and the compost looked very acceptable. I have potted on a few plants in the JAB MP already and they are doing fine.
Over all I have always favoured JAB MP when I can get it. Companies like JAB do a lot of research and have good quality control so I really wouldn't be put off by what the compost looks like because you can bet it will bring good results if used as the manufacturer suggests. As Mike suggests (depending on what I'm growing) I add a little composted manure to the mix - particularly with courgettes.
Incidentally, we picked 3 courgettes and 5 cucumbers today: yum!