One thing to remember is that salad crops in particular shouldn't all be planted at once, as you usually won't need 100 lettuces that reach optimum size all at the same time.

One nice thing about the Square Foot Gardening method is that it seems easier to plant a week's worth of some things. One square foot of soil can grow at least four lettuces. You could plant a few more, then thin and eat the ones in between, and let the others get larger. With the loose-leaf lettuces, you could just harvest the individual leaves (a few from each plant) every few days to make them last longer. Every ten days or two weeks, you can plant another square. If you harvest the entire heads, you can sow more seeds immediately after harvesting, as part of the rotation.

Square Foot Gardening helps you to focus on what you're planting and how much you need, more so than other methods. You can also start some things indoors or in a container and have young plants ready to pop into a spot that you just removed something else. (Not carrots.)

Sue