I have a hosta that has big leaves and when I bought it 2 years ago, it was blue. Now it has come up green. It is currently in a heavy shade area. If I moved it to an area with more sun, would it revert to blue? Or, is it something in the soil that will make it blue? I want it to be blue.
Sometimes if a blue hosta gets too much sun they can take on a greener look. If yours is indeed getting no sun then it might be that you need to feed it to help darken the foliage. I’d trench out away from the hosta just outside the root zone and sprinkle in some Flower-tone into the trench and then cover it up and water it. Do this every spring as early in spring as you can. It may be that the hosta is missing a nutritional element it needs to stay blue. This would be especially likely if the soil is very sandy.