The vegetables least amount of sun need are leafy greens like lettuce, spinach, and arugula. These crops grow fine with just 3-4 hours of direct sunlight per day. Some even produce better leaves in partial shade since intense sun makes them bolt and turn bitter fast.
I learned this by accident when I planted lettuce under my tomato cages one summer. The shaded lettuce kept making tender leaves weeks after my full-sun lettuce bolted. That mistake taught me to use shade as a tool in my garden.
Now I grow shade tolerant vegetables in every corner of my yard that gets filtered light. The north side of my house produces spinach from March through November while the sunny beds only work for spring and fall. Less sun means cooler soil which keeps these crops happy longer.
Leafy greens top the list of low light vegetable gardening options. Lettuce, spinach, arugula, and Asian greens like bok choy and mizuna all thrive with 3-4 hours of sun. Swiss chard and kale handle shade too though they grow slower than in full sun. Root vegetables work in partial shade as well.
Brassicas like broccoli and cabbage need 6-8 hours of direct sun to form proper heads. Fruiting crops like tomatoes, peppers, and squash need even more since they turn sunlight into the energy for making fruit. You won't get good yields from these in shady spots no matter how hard you try.
Shade works as an advantage for leafy greens during summer heat. Direct sun pushes these plants to bolt which means they flower and make seeds instead of leaves. The bolting process turns leaves bitter and tough. Partial shade keeps soil and air cooler which delays bolting by weeks.
Plant your shade crops on the north side of taller vegetables like corn or pole beans. The tall plants cast afternoon shade that protects lettuce from summer heat stress. You get two crops from the same garden space this way without any extra work on your part.
Areas that get morning sun and afternoon shade work best for leafy greens. Morning light gives plants energy while afternoon shade protects them from the hottest part of the day. Dappled light under trees works too if the canopy stays thin enough to let some direct rays through.
Start with lettuce if you want to test low light gardening in your space. Loose leaf varieties forgive mistakes and grow fast enough to show results in 30 days. Once you see success with lettuce, add spinach and arugula to build your shade garden collection over time.
Read the full article: Cool Season Vegetables: Complete Growing Guide