Unfortunately there are no sunny days in this period, every day is cloudy. Anyway my window get direct sunlight only in last winter month. I will set up grow lights for a 10h per day.
Avocado roots looks good, they are not spread out from the bottom and does not going round.
I remember a spring when my avocado dropped few leafs, unfortunately still there are no new leafs.
Other leafs looks like this:
http://oi44.tinypic.com/6jd7yq...
