Heat
It's too hot to think much less work in the garden. Once the temperature moves above 90, I go into slow motion. I am managing to keep plants watered, although I nearly killed my basil plants and resusitated them just in the nick of time.
The irony is, I now have fresh vegetables and an un-airconditioned house, so I don't feel much like preparing them. I even find myself wishing for winter's sub-zero weather during which firing up the oven is a pleasureable warmth.
The thought of making jam or canning sounds like torture today. I am saved from dealing with a small batch of apricots -- the first ones my little tree as produced -- the squirrels ate them all, all at once one morning when I wasn't looking.
My grape vines are trying to take over the world. There are several luscious bunches of grapes. I hope there are more than the squirrels can eat.