Ok, I forgot to mention that the windows my plants are standing on is huge and directed towards south. So my semps stand in a crazy danish sun all the time. I guess we shall see how it goes and I am gonna keep you updated.
The grow plant might be a good idea for winter time
but I am worried, isn't that gonna disturb they natural cycle even more? Since they are indoors they are not gonna freeze or go through hardship of life. Unless me giving them water once a week is enough of a struggle for them.