Roses are red, violets are blue. Except they’re not. They’re, er, violet. True blue flowers are exceedingly rare, and not for lack of effort. Plant breeders have repeatedly tried to nudge roses and ...

Many gardeners already know to plant blue flowers in their gardens to bring in bumblebees. But scientists have found a new set of bee-friendly plants which have a special glow we cannot see. These ...

What’s your favorite color? My favorite color has always been green. I guess it figures, given my life-long interest in plants. But, if you ask me what my favorite color of flower is, I would say blue ...