Fruit trees. Consider planting a guava tree. Make sure it’s a tropical guava (Psidium guajava) and not a pineapple guava (Feijoa sellowiana) or a strawberry guava (Psidium callleianum).
Now we have a 20-foot-tall, nicely shaped tree bearing an unknown fruit. Its fruit starts out resembling a lime but grows much larger. The clippings and leaves smell like a lime, but the juice is ...