Q.How Do I Encourage Blooms On Otherwise Healthy Plants.
I have several plants that are healthy and green (Hydrangea, Trumpet Vine,some of my dalias, etc.) but have not bloomed in a couple years. I think the sun exposure is right and I tried to get them to bloom with a shot of bone meal instead of nitrogen last fall but no luck. Any suggestions to encourage blooms? Hank

Certified GKH Gardening Expert
It sounds like there is still too much nitrogen in the soil. This article will help you to take a soil sample to know, for sure:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
Here is an article for testing pH:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
Here is an article that will help explain how to correct an excess of nitrogen in your soil:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/too-much-nitrogen-soil.htm