Question
How big do they grow, and what care do they need?

Answer
Did you mean Vanilla Kordana? If so it is a floribunda and grows to about 18 inches to 24 inches tall. It needs the same care as a bigger roses. Sprinkle a small handful of any rose fertilizer all around the base of the rose bush. Keep it watered well during any hot period in the summer. This rose is prone to black spot so if it gets bad you will probably have to use a fungicide to keep it under control. Bayer now puts out a good earth friendly line of sprays for all rose problems. If it isn't Vanilla Kordana, then please get in touch with me again. Hope this helps.