A landscape is a good investment, yielding a greater than $1 return in home value for every $1 invested in the landscape.
Landscapes are one of the only home improvements that increases in value (and size) over time. Other renovations (e.g. bathroom, kitchen) typically yield less of a return than the amount invested.
Design sophistication accounted for 42% of the value added to the home, so clearly doing more than foundation plantings yields a greater return.
Plant size accounted for 36% of the value added to the home, so larger plantings translate into greater value.
Diverse plant material accounted for 22% of value of the value added to the home, so it appears that having many large numbers of different plants was not as important.
Adding one or two island beds (increasing design sophistication) can alone add 2% to the perceived value of the home.
Although a small investment (less than $250), colorful annuals and perennials added nearly $1000 to home value; returning 400% on the investment.
Moving from the least valued landscape to the most valued landscape, perceived home value increased, on average, 8.6% across all states included in the study.
Clearly, installing more than foundation plantings yields a greater return for consumers. Curvilinear beds are effective design elements in adding value to the home.
For the full version of the study follow this link: http://aggie-horticulture.tamu.edu/faculty/hall/s1021/quality_landscaping_adds_value.pdf