Posted: 02/04/2014 at 18:50
Hi Heather, there is a Sweet Pea thread with pics on of when to pinch them out. I have a similar question but only regarding tomatoes so am going to have a browse.
Cant help with anything else as I'm still learning too
With a determinate tomato plant, you just leave it to grow.
With indeterminate, you leave the top to grow a tall plant, but pick out the little side shoots that appear just by the leave joint,
Your packet of seeds should say which they are or you could check on the net.