One tip for you new guys that I just thought of...
Don't plant one row of corn. It pollinates much better when planting at least 2-3 rows.
Also, there's no real need to buy "Bonnie" plants for anything other than tomatoes and peppers. (You don't need those either, but they take longer to grow from seed) I actually saw 6 pack trays of corn to transplant at the Co-op yesterday. I can't believe anyone would buy stuff like that. They sell okra that way too. For less than half the cost of one six pack of plants, you could buy a pack of seed and have enough seed to plant for years if you're only planting a normal sized backyard garden. Store your seed in the deep freeze and it will last indefinitely.
Squash, cucumbers, and zucchini planted from seed will be up within a week if soil temps are okay, and they are okay now.
Soak your okra seed overnight in water so it will germinate faster.