Which annual and perenial seedlings should be 'pinched out'?
I am new to growing the seeds of annual bedding flowers and perennial flowers. Often I read or hear 'pinch-out' after the second set of leaves etc. Whilst I know what to do, I don’t always know which seedlings species I should do this on.
Therefore, I would love to collect a list of which annual flowers or perennial flower this 'pinching-out' is most appropriate for.
What do you experienced growers do??
Many thanks in advance