I have only tried to grow Carrots once in my life, not really a fan of root vegetables as you can only harvest them once and then you have to replant them. It is probably the weather though, as it kind of needs to be cool for them. My carrots didn't come out well, they looked like baby carrots. So disappointing.
I hope to use the idea above and have a better crop next year. If not I think I will just give it up.