A citrus tree expert reveals how to grow a lemon tree in a pot, including getting the plant to produce fruit. Ted Betz Growing lemons in a container is easier than you may believe. “On a scale of one to 10, with 10 being hard to grow, I would say lemons are a six,” says Matthew Fleming, lead horticulturist for tropical plants at the Smithsonian Gardens. Fleming cares for the potted citrus and...