I've watched it when I was littler, like maybe in the 90's or late 90's but I don't remember the name.
it had puppet kids and one of them was a chinese girl and one was a blonde boy, they had a greenhouse in their house annnnnd I think there might have been a red headed girl and black boy.
help. Thanks
=]

OMG! I totally remember this show, too! It was called The Puzzle Place! :)