The magic thing about tomato plants is when soil is placed around their stems they will grow extra roots and make the plant sturdier. 3/4th a bucket of pure vermicastings is a generous amount for six plants. Toss it on and then step back quick and run and get the canning supplies. You can save some for later in the summer or you have enough to share around to some of your other favorite plants. I bet your daughter had a great time! So cool!