Spending 5 percent of the total value of your home on landscaping, and doing it wisely, you can add 15 percent or more to the value of your home.
- Smart Money magazine March 2003
One rule of thumb is to invest 5 to 10 percent of your house’s worth. If this seems steep, consider that appropriate landscape improvements are estimated to return 100 to 200 percent of their cost when a house is sold.
ASLA Homeowner's Guide