Tarev, I would need to take some kind of learning course, should I ever move to a more northern climate. All that kind of thing is another world to me. Hopefully on the bright side this constant dips into freezing this winter will help the semps out. Some have had active growth already, while others have stayed dormant. The color changes have been truly fascinating to watch. The ones that first starting changing have now gone back to green and now the green ones have color. These little guys are just too much fun. Something new everyday. I actually enjoy weeding them because I get up in there and see all the details. The gravel I used on top must have had a lot of wildflower seeds in them. I have been picking out tons of sprouts several times a week.