I always struggled with making leaves and chucked them aside after several failures.
It's something about having to line the stems with sticky floral tape and the residue it leaves. Leaves - get it?
I'm not sure if there's any floral tape that doesn't leave the icky sticky feeling, but until I find that, I'll keep the leaves to a minimum.
(this is the main reason why I don't use floral tape on my blooms)