suggestion for long term blue flowering bushes 2/3 ft wide 4/5 ft tall, when fully grown for nothern Massachusetts & southern Mai

Question

ne.

Answer 1

If a blue flower is what you are looking for, then your options might be very limited. There are a few things that you can do here, though. These two articles will help:

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-5/zone-5-rosemary-plants.htm

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-5/zone-5-hydrangeas.htm