Just that really. Everything I've read says to sow seeds between May and July, either in pots or in their final position, but how strict is that (garden novice alert!)?
We moved into a new house in January and the previous owner had won awards for his garden! I've tried to get to grips with it since we moved in but didn't realise how far in advance you need to plan for next spring! Am slowly getting addicted to gardening though! 
Any help would be much appreciated.