We are accustomed to in a sunny place to grow vegetables, because people generally believe in a sunny place to grow vegetables to get higher yields. However, in the shade can also grow vegetables.
MARK HOFFMAN: “The bottom line here is that most plants will produce more in full sun. But if you do not have full sun, there are other options.”
Mark Hoffman’s tomato plants growing up into the leaves of an oak tree
For example, he grows tomatoes near oak trees. Oak trees can produce a lot of shade. But Mr. Hoffman says his tomato plants grow as long as they get five hours a day of direct sunshine, especially morning sun.
Not only does this go against the traditional advice that tomatoes need six, eight, even twelve hours a day of full sun. It also shows how plants and tree roots can share nutrients and water.
Mr. Hoffman also planted asparagus around a tree at its drip line, the area below the outer limit of the branches.
MARK HOFFMAN: “Now the asparagus is in partial shade. It has been there for six years now and is doing wonderfully. It is right at the drip line of the tree. So when it rains, all the rain drips down right on the asparagus.”
The Hoffmans’ website includes a list of vegetables, flowers and herbs that have produced acceptably for them in partial shade. Besides tomatoes and asparagus, these include broccoli, daylilies, horseradish, Irish potatoes, oregano and winter onions.
Mr. Hoffman says plants with wider leaves seem to do better in shady environments. He also found that his potatoes did better in partial shade than in full sun.
Moving them out of the sun helped control an insect problem with leaf hoppers. Mr. Hoffman does not use pesticides. Instead, he planted the potatoes at the drip line, especially on the east side of the tree.
The potatoes get morning sun, but they are shaded during the hottest part of the day. Leaf hoppers dislike shade, and the hottest part of the day is when they do the worst of their damage.
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