It seems pretty simple to plant a tree. Dig a hole. Drop in a tree. Fill the hole. Add water. Go back inside and have a beer. What could go wrong? Yet year after year, we see trees planted incorrectly ...

Pencil tree, native to much of southern Africa, is among the most fascinating plants we cultivate here. Often labeled ‘’pencil cactus’’ even though it’s a succulent Euphorbia (E. tirucalli), it ...