I have my sesqu. in lava rock, net pot and when it was above 90'F last summer, it took the hot sun very well. I watered twice a day. This one grows on rocks, exposed. I don't have the other (I tell myself I don't need to collect all of them). Check out on online Angraecum Encyclopedia. It tells where it grows (so you can check temps) and how. It is a great resource.