For those of us that still struggle on getting compost right, there was a good answer on GQT this week. First of all, they said sowing compost should be low in fertility (too much sucks the nutrition out of the seed). Essentially, sowing compost can be “sand with something to hold the moisture – e.g leaf mould”. I had to listen to that twice to make sure I heard it right. Potting compost is where the seedling needs nutrition and the recommendation was one big bucket of compost mixed with no more than a teacup of fish bone meal and some wood ash. My mistake has been in thinking that seed compost was the most nutritious – to get seeds off to a good start – and to use this for potting on. Always learning…but I’m starting from a very low base. Good to hear any useful tips on seed/potting compost from growers especially the ratios of the components. Thanks for all the comments.