Originally Posted by Jonnyboy

I've caught grayling in the summer and early autumn before and they don't go back very well. They often need nursing and deep hooked fish often don't survive. Much better to leave them until there are no leaves left on the trees IMO.

I never fish for grayling until after Christmas - you don't need to wait that long,but I fish for them then because you can rely on grayling for bites in the coldest days of the year when nothing else is biting.