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.

Everyone has shade, and blue is one of the most enduringly popular flower or foliage colors. It's natural to think of sun-loving plants such as delphiniums, baby blue eyes, anchusa and lithodora ...

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 ...

What it is: Lily-of-the-Nile is a tough, long-blooming, perennial blue flower that’s very common in its native South Africa and warm-weather parts of the U.S., but it’s always been just out of ...

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 ...