. >> new gardener simonson says fresh and pesticide free produce is what got her gardening in the firstplace. >> having my daughter, i'm conscious what she eats. being that she's 8 years old, i thought it was a good activity to do together. >> reporter: next year they'll do it again. it is harvest time right now across the country. according to burpee, not all vegetables give you the same return on your investment. tomatoes. a $3 to $4 pack of seeds gives you a good return. don't expect it for other vegetables like sweet corn. for every $1 you spend, you get about $5 of supermarket corn. they must be harvesting in minnesota. >> that's incredible. >> isn't that cool? we talked to one woman who last year planted a garden in the backyard. this year, they hired someone to till up the entire backyard. they're planting a whole half acre. >> when i was at the missouri state fair, the fair director there told me the same thing. he said people there are going back to basics. they're planting their own gardens. they're canning their own vegetables. i had no idea the difference was that great. tha