While cucumbers thrive near bush beans, lettuce and radishes, and choke near potatoes. Beans, beets, cabbage, carrots, cauliflower, corn, cucumbers and strawberries make good neighbors -- as long as you plant the onions, garlic, leeks and shallots elsewhere. Peppers do well with carrots, eggplant, onions, parsley and tomatoes, but not with kohlrabi. Keep lettuce away from cabbage and keep onions away from asparagus, beans and peas. Spinach gets along with everyone.
Do you have an area of your garden that is shaded part of the day? If you think you can’t grow anything there, you are wrong. There are many vegetables that grow in shade. Some even thrive when sheltered from the intense rays from the summer sun. Consider experimenting with these vegetables that grow in shade.
Planting Lettuce Seeds & Tips For Growing Lettuce From Seed
Companion Planting: Lettuce + Tomatoes or Eggplants (Pairing plants w/ different growth habits together is referred to as 'intercropping". Tomatoes & eggplant grow tall & eventually shade cool season crops which don't like heat. Extends your lettuce season slightly.)