i have a hawaiian umbrella tree where the leaves are turning yellow. i got it about two weeks ago and this is the first time im taking care of anything but the most abuse-taking plants. however, since i got this plant, i have been watering every time the soil turns dry and i kept it right by my east facing windows for a lot of light during the beginning of the day. and decent indirect light till about 5pm
the only other thing of note is that i keep my windows open at all times. (being in the sf bay area) this means that the day time temps are about 60-70 degrees F. while night time temps are 50 degrees. however, my indoor temperature doesnt get nearly as cold as that. at most, the average indoor temp drops around 60 degrees with maybe moderate breezes by the window that bring it down to 55 or so...
any help would be greatly appreciated!