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Unless they are cypress trees, trees don't do well in standing water. A tree from a nursery, balled and burlapped, should get watered frequently for the first two years.
The problem is that frequently for trees doesn't mean once or twice a day. But sometimes, that's what happens when sprinklers for lawns are placed too close to trees.
An automatic sprinkler can cause the soil around the tree's roots to get saturated, causing it to become compacted. The water also drowns the roots, which causes the tree to die. Further up the trunk, the bark stays moist, which can lead to decay, which means the tree can't fight off pathogens and insects.
A better idea is to keep the sprinkler away. Pour about an inch of water slowly into the mulch well around the tree. If it goes down rapidly, then the tree needed water. If it stands without moving, the ground underneath is saturated.
SherrillTree has a solution, called a Gator Bag. You put it under the tree and fill it with water. Pores in the bag let the water out slowly, over time. |
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