Posted: 02/04/2014 at 14:19
I think you've made the mistake many first time composters do. The error is to try to compost perennial weeds ie dandelions and alkanet, plus quite a few more..
I did it and so have the majority of people when they first start so it's no big deal.
If you have a good dark, non smelly heap then you can use it. It may have some seeds in especially if it hasn't been hot enough, as heat generated kills the weed seeds.
It may be worth sieving the compost to remove any perennial roots which may still be there, but if you keep an eye on what you are spreading you can usually see any weeds still in the compost. Keeping on top of what you have spread will be tiresome but essential.
There's always something left after composting even some seeds, and unless you are hot composting you will have to make do for the moment.
In future don't compost the perennials weeds, burn them, and try to remove any weeds before they set seed, dandelions being one of the worst culprits.
Not many people garden by just raising and planting plants, garden maintenance is a large part, weeding, bug problems, feeding etc, mistakes we learn from and we all make the them.
I know you won't make the same mistake again, lesson well learned.
There is another thread on here about composting, but I can't find it, but others will point you too it.