Curb appeal is important, but having extensive landscaping can backfire. Yes, people visiting your home will be very impressed -- by how much work it must be to maintain the exterior of your property. It's a double-edged sword. It's nice to spend time in a park-like setting, but when you sell, it will be more difficult to find a buyer who'll want to sign up for the extra labor. If you have a high-end home in a neighborhood where folks typically have the budget to subcontract yard maintenance, indulge your green thumb. If not, prefer landscaping that's easy to maintain.