Posted: 02/04/2014 at 22:11
So I don't pinch out when they have 2 true leaves like sweet peas? I think they are a bit small yet so will leave them until I repot and then pinch where necessary (I think!)
Bless you, Tracey, NO.
Presuming these are the ones intended to be grown in your greenhouse.....'Moneymaker' for instance? These will have only the side-shoots removed as they progress up their supports. When they reach the top of the supports or the roof, then AND ONLY THEN is the growing tip removed...pure & simple, this prevents it growing any higher.
It therefore follows if you take out the growing tip at any other time, they will be stunted and will not grow any taller.
I'd rather not complicate it any further, but in theory you could use the resulting side-shoots to train up the supports....but let's not go down that path.