How do I prune Trumpet Vine for max blooms?
I made the mistake of planting a trumpet vine vs a trumpet creeper. It is now very well established and yes I have to work to keep it in one place. It pops up every where!
I do however like it when it blooms well & so do my humming birds. This late-spring it grew so much I had to prune it. I pruned it fairly hard but not extreme. I was quite disapointed when it didn't bloom this year. My question is how do I keep its size under control by pruning and still have it bloom well? When do I prune it? do I need to prune it lightly & often or can I prune it hard once a year? Or does it only bloom on old wood so I'd have to prune hard every-other year so it only blooms every other year (that would be sad)?