In terms of "figuring it out"; you last pruned in May? And Monday, July 1 new flower buds had already formed. Or were the flower buds on branches that did not get pruned in May?
I'm looking for a guess as to when one must quit pruning to get flowers.
Leo,
I have not pruned it since the post I did in January. The only thing that I did was remove 50% of the leaves and maybe shorten a couple of really long branches, and then some wire, everything else was left alone. All of the growth you see is what it made this year. In the past, I would prune it several times in the spring through the end of June, but I have never gotten any flowers. This year I decided to not prune and see if it would make anything, and it did, a week or so after I took the leaves off, it started making these (hopefully) flower buds on the ends of the branches. So, I think they start forming really early, and by pruning until the end of June, I was cutting the flowers off. This is all just speculation as this is the first year that I have treated it this way, we will see if I can get a repeat next year.
I have another tree that behaves this way, my contorted camellia. If I prune past mid/ end of April, I will not get flowers on the outside branches, the new growth past that time frame will not make flowers, only interior older growth. It has buds forming on it now.
Your window may be a little (or a lot) later than mine since you are a lot farther north. Things tend to go quickly here after February.