It is always a good idea to maintain the appearance of your home and lawn. Most people who have mortgages are sensitive to drops in value on their property and how the neighborhood's appearance reflects on them. You are not taking care of your property.No matter what, being green with envy often makes people want to avoid the people that make them feel this way. Maybe your husband is a high-paid CEO and hers was just laid off. Maybe your garden is full of flowers and they are fighting dirt patches on their lawn. People are often fearful of their problems and your problems becoming intertwined, which makes things too complicated for them. You would be surprised at the number of people who do not want to bother with their neighbors. They aren't looking to make connections in the neighborhood.
There are many reasons why your neighbors don't say hello. Reasons Why Your Neighbors Don't Say 'Hi'