Give Your Trees The Nutrients – Beautiful, full trees provide shade during the hottest parts of the day. Their presence in your backyard can lower your air conditioning bills and help create an oasis in your garden. However, when a tree near your home gets sick, its removal can be an unwanted expense. So what can you do to ensure the trees in your backyard continue to thrive for years to come? Here are a few tips about tree fertilizer. Giving your trees the nutrients they need is an easy way to help maintain them.