Just wanted to thank everyone who replied to Coffee Plant post, and/or kept it going. I've decided to keep plant outside during day, and then bring in at night until nights get slightly warmer. I think I will try to hold off o= f buying a grow light, and use those new 8 year life full spectrum bulbs you can now buy first. They give good lumens, upto 1200, and use very low energy! I will have to research how lumens translates into effective light, though. I did hear that lumens are NOT the best way to measure this. I also decided to use volcanic lava rocks on the top of the soil. Should work well for retaining moisture. It is OK to use, apparrently, as it does fair well with orchids. We"ll see how it works!