If you want to produce your own fruit but don't have enough space outside, consider a small tree that can happily grow ...
A version of this story appears in the February 2017 issue of National Geographic magazine. Citrus, in many ways, stands alone. So many cultivated species have come from so few primary ancestors.
he and his colleaguesaren’t worried about significant impacts on grapefruit trees’ health. He also doesn’t expect big impacts to grapefruit’s nutritional benefits. “Furanocoumarins are c ...