as it happens, i've had my totally awesome plant Spike since c. 1995. so i'd like to think i'm alright at the caregiving part. but just in case you'd like to take "talking to your plants" about five steps further, take a look at Botanicalls. "It offers a connection to your leafy pal via online Twitter status updates that reach you anywhere in the world. When your plant needs water, it will post to let you know, and send its thanks when you show it love. "
now, honestly, i've been having trouble getting into the whole twitter thing. it seems like i can update my status everywhere, so why would i make yet another stop online to update there? your plant twittering YOU, now that's a different story. awesome.