I put 4 pots of baby oak trees in the sun today. ( More about these oak trees: http://wp.me/p7lYgC-Hv) These are the ones that are growing faster than 7 other pots, for now, as nobody will ever know if they will always stay ahead of the others.
Just for a few hours, they will soak up direct sun. That’s a pot of clematis in the background, by the way. It survived sub zero temperatures under a roof, and it started flowering a few days ago.