that temp is ok but NOT lower then 42-45 so i would leave outside NEXT to the house the house will keep a little warmer. Keep the hibiscus in the house they dont like below 50 and if there stressed it might not be good for them they are used to my 80-84 deg.
the lily's need a big pot 3 gal if you go smaller then watch for water they can dry very fast but YES they are actually put in 3 gal pots and forced to bloom to cut and sell cut lilies if you got tiger Lilly the can go to a 1-2 gal pot
if anyone has more info please speak up I am telling you what i know and what the grower/greenhouse recommends
hope all things work out. dont put anything in direct sun for 2-3 days genitally move to direct sun. i burnt 50 plants that i had under 2 types of grow lights 24 hrs a day and 2 days in the sun they where crispy but soil was not dry!!! harden them off
mike