Then she asks: "Are there any teal flowers?" I said "no", but then maybe in some other corner of the globe someone has or knows of a plant with teal (teal blue, not teal green) flowers.

I started doing this again about 5 years ago. 2nd childhood perhaps?Kisal wrote:White flowers often can be dyed any color you like. It's very commonly done with carnations, and I've seen it done with daisies, as well. That would probably be your easiest and most cost-effective solution to the problem. I know of no teal blue flowers.
When I was a kid, we used put food coloring in the water in a vase of white carnations and watch them become tinted.