mine is doing this also, I would suggest misting the leaves and watering longer on a regular basis. How old is your plant? If it is producing cherries, I would think that the rooting system should help the leaf issue if watered more often. Also try using a slightly acid fertilizer. If you have any other questions please feel free to email me with any questions. I am also starting to grow coffee, so it is a new experience, but that is some advice that I got from a horticulturist.

Where did you get your coffee plant? I have had no luck in finding coffee to grow.

My first coffee plants came from Gurney's. After I started growing those, Believe it or not my next plants came from my wal mart. They were mis-lableld as another plant, and they claimed to have pink leaves, but I knew better. In fact, they were coffee plants. They are cheaper there, and they were cultivated by Exotic Angel Plants, or http://www.exoticangel.com/Varieties/ShowProductDetails.aspx?productid=28
I hope this helps!

i have 3 kona plants i bought through ebay from a nursery in hawaii. i got all 3 for like 12-15 bucks. i have the same problems on and off with the leaves but mine are much younger 1-2 yrs. no whwere near production. maybe the fruiting season reqires more water and a light fert like masterofcoffee said. thats what i do when i get nervous.

do you roast your own coffee? i bought a "poppery 2" popcarn popper by west bend at the goodwill in tempe for 4 dollars. i read thay are the best model for roasting coffee and they're on ebay for about 25 bucks. but you sould check goodwill first if your interested, i found it on my 1st try, couldn't believe it. but until i get some berries i buy green beans from lost dutchman roastery in tempe. anyway, best of luck!