To keep fruit trees healthy and ensure they bear plenty of fruit, they need sufficient nutrients. Learn when fertilization is ...

As with yarrow, fennel is best planted close to—but not directly under—apple trees to avoid competition and crowding, Hammond says. Zones: 4 to 9. Mature size: 3 to 5 feet tall.

Peace says he can't determine the exact age of a tree based on a leaf sample alone, but the Maine Organic Farmers and Gardeners Association says it's at least 200 years old, making it one of the ...