An easy-care and long-lived backyard tree, a grapefruit tree (Citrus x paradisi) is prized for its productivity. A mature tree—grapefruit trees usually reach maturity at about five years of ...

Q: I live in Tucson (caliche paradise). I have a ruby red grapefruit tree in my patio. It is 20 years old, 17 feet tall. Over the years I have trimmed it into a nice shade tree that gives us 150 ...

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It’s not entirely clear where grapefruit originated, but one thing is certain: Ruby Reds are native Texans. Back before the Roosevelt administration (the first one), all grapefruit was of a paler ...