Just a thought for the OP, Gardenliz - you can go through horticultural programs without doing the Master Gardener thing. There are even distance education/online courses one can take which might be an advantage with small kids (unless you prefer to go to classes to get a break!). Depends if you're thinking of being an MG because you're already knowledgeable enough and wish to share, or are interested in a way to get some formal horticultural training.