Decent compost is hard to find, finding something that seeds might consider worthy of their germination efforts is practically impossible. So, like most determined gardeners, I’ve started making my own mix. I use commercial compost as the starter, ideally with a bit of added John Innes for body but then I sieve out the uncooked bits and add sharp sand for drainage and lightness.
Start with this (other brands available)
Not sure what criteria Which used but is what I sieved out. I’m feeling short-changed… but it goes on the compost heap for more cooking.
add in a few generous scoops of sharp sand
and you get this. I must be getting old, but I’m certain there was a time in the not too distant past when seed compost arrived looking like this.
I don’t use my own compost because it’s full of weed seeds – must do better there.
Allotment Life 
I like your scoop. Adding to my birthday list now…
I use the ‘Camelot’ multi-purpose compost the horticultural society trading shed sells as it’s surprising free of rubbish that is found in a lots of others nowadays. All I do is sieve it before using. xx
I’m not familiar with that brand. Do you know who makes it?
Michael Kings Ltd, where our trading secretary buys all the bagged compost, horse manure etc. as a bulk delivery which was fourteen pallets this year which I helped unload and stack a few weeks ago. xx
Good to know. Thanks.
Thanks for this! It is a good idea. I use the Westlands Grow-Sure seed and cutting compost which isn’t too bad. It still has bits that need sieving out but is more like the stuff you have made. It gets expensive though with the amount of seeds I sow so maybe I should switch to making my own too?
Grow-sure is pretty good stuff but is expensive. There is something satisfying about making seed compost or perhaps I need to get out more;)