We have a small Judas tree, Cercis siliquastrum, in our front garden. Last year it was covered in bright purple/pink blossom but this year it has produced only one cluster of flowers. It made quite a lot of growth during last year. Has the new growth used up all the energy of the plant? I read that they strongly dislike feeding, that they will tolerate pruning at the end of spring.
Does anyone have any suggestions as to how we can encourage the tree to flower next year? It gets a great deal of light, though is not in direct sunshine for a lot of the day. It is healthy otherwise.