Citrus greening, a silent killer sweeping through the United States’ groves for decades, is a threat to more than just your morning OJ.

When it comes to pie flavors, you know the basics like apple and cherry. But what about grapefruit meringue? Or banana split?

Fruit trees create delicious, healthy and beautiful edible landscapes. They’re also wonderful for wildlife, feeding bees with early-season pollen, giving shelter to nesting birds and generally ...