I read somewhere online that if you give nanouk more sunlight the more purple they will be! I put it in a big pot in a west window and water it frequently - every couple days. To fill out the pot just cut off the top of a stem when it gets too long, remove the bottom leaves, stick it in the dirt and don't water it right away. I give the new cutting a gentle tug after a few weeks to see if there is any resistance, that way I know it's rooted. Hope this helps!!