I am growing a couple and I haven't had that problem. They are touchy about sun, they want some, but not too much summer sun. I had to move a couple of mine to find the right spot to suit them. They seem to be the same with the water, they want a lot, but need to be fast draining. Maybe someone else will have a better answer.

That is a good looking plant. Is there any fragrance? What is the height and spread and zonal limits.

Thanks.

Here is a link that might be useful: Royal Blue

i grow 4 different varieties and have only had that problem with my red one. I moved it to a place where it gets morning sun and afternoon shade and its doing fine. The cuttings root very easy for me too

It's in a pretty good spot for morning sun, but it does get bright sun up until noon. Maybe I'll move it to the other end of the bed with more shade, and see how it does.

zenzilla, how do you root your cuttings? Do you stick them with rooting hormone, or start them in water? This one was rooted in water, but I've never gotten another one to root in water. I stuck some once, and a couple rooted, but then they got too wet and rotted.

If you have any rooting tips, I'd be happy to have them. I already know they take a long time to root.