I plan on building a small greenhouse that will roughly be 8' x 8' in size. I'm mainly interested in growing Nepenthes. Temps here in Lakeland in the summer are on average 95F during the day and 75F at night. From what I hear lowlanders would have no problem but highlanders would. How would I cool a greenhouse here at night (say to 60F - 65F) for highlanders? From what I've read the humidity is so high here (especially at night) that a swamp cooler would not be effective. What other options do I have? Does anyone grow highland Nepenthes in Florida in a greenhouse?