posted 14 years ago
If the neighbors do not mind if you remove the trees, perhaps they might not mind if you thin the branches. However, if the stand is too dense, even this will not work. My own trees are spaced uniformly throughout the property. Some are simply too large and spreading to admit much light. I taken out tree so that no single tree is touched by the branches of another on any more than one quarter of its surface. This practice strengthens the trees and provides light edge. I then trimmed the lower branches up fifteen feet. Finally, I carefully trimmed out branches to open up the tree and admit light to the ground. It is tedious, and frankly, if you are not accustomed to working with trees, can be dangerous.
Before making the above alterations, the north side of my house was shrouded and never saw any sunshine during any part of the year. By opening up the canopy I now grow blueberries, cranberries, lingonberries, salal, bracken fern, black cohosh, ginseng, kinnikinik, raspberries, strawberries, comfrey, radishes, turnips, all kinds of lettuce, spinach, kale, onions, leeks, beans, peas, tulips, dahlias, spearmint, peppermint, lemonbalm, sage, wormwood, and clover, all in one guild around the dripline of a cluster of Scarlet Oaks. I did not cut down the Oaks, and the house still casts its shadow, but I grow plants in abundance. I cannot grow lawn or roses.
I use this example because I am growing these plants directly below the trees, not thirty or fifty feet away. Sunlight finds its way through the branches, but there is never any direct sunlight on the area because of the neighboring trees. The benefit of the trees in providing shade , fertilizer, water, beneficial insects and animals, and reducing photosaturation, and so forth, I believe, allows the plants to thrive with less sunlight.
I do not know your site, but if it is downhill and north of the trees, have you considered that much of the problem may be attributable to the contour itself. Swale and berm, along with at least some modification of the tree cover, may be all that you need to create a full-dapple (once in a while at least) environment.