Blue flowers can be particularly prized in summer, where their cool nature contrasts with summer heat (if we are lucky).

Hydrangeas are coveted for their large, showy blooms and ability to change color depending on the pH of the soil.

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 ...

A bit of imperfection could be perfect for flowers creating a “blue halo” effect that bees can see. At least a dozen families of flowering plants, from hibiscuses to daisy relatives ...

Bees seem to have a preference for blue and purple flowers. Their photoreceptors are sensitive to ultraviolet, green and blue wavelengths. Researchers have found that where tough environments ...

Q: Why are more fruits and flowers red, orange or yellow than blue? —Robert L. Morrison | Poughkeepsie, New York There is actually no true blue pigment in nature. A pigment creates color by ...

blue, trumpet-shaped clusters from late March into early May. The flower buds are pink. The flowers attract several early-season pollinating bees and sometimes early rounds of hummingbird visitors.

San Diego has a new city flower for the first time in 61 years. The City Council voted unanimously Tuesday to replace the non-native carnation with blue-eyed grass, a native flower that can be ...