Posted: 11/07/2013 at 17:30
But the problem appears to be that there's no blossom in the first place. I've jumped into this thread because I have a similar problem. We have a plum tree that's been planted for 4 or 5 years and it still has no blossom. It's a dual-type tree with two varieties - a damson and an greengage - grafted on to the one stem. The greengage part is now over 2 metres tall, and last year had just two tiny flowers, one of which produced a tiny plum that fell off. This year I think I saw one flower but there are now no fruits. The other part of the tree has never had a flower.
I gave the tree some potash feed in the early spring, but to no avail. It looks quite healthy, but won't flower.