Answer: Evergreen Ash is a good choice, as is ornamental pear. Ornamental pear trees flower but do not set fruit so litter will be minimal. You might also consider Majestic Beauty Olive tree. This, too is fruitless and evergreen. When you visit the nursery, ask about any bad habits of the tree you select. Sometimes fast growing trees are short-lived, or have brittle branches. There's no guarentee that even the most well-behaved tree will keep its roots to itself. Feeder roots explore the soil, looking for moisture and nutrients. If you supply the required amounts, the roots won't be as likely to invade nearby flower beds or lawns in search of water.
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