Tell it a sad story?
The leaf coloring is genetic.
You need to select the plants when you buy them for the color you prefer.
Fertilizer won't make a difference unless maybe it has bluing in it.
http://www.walco-linck.com/bluette.html
Requester wrote in message
om...
is there a way to make them bluer than what they already are? i want
to make one that i have a more shinier brighter blue. will fertilizer
help?
thanks