A blue-purple member of the Plectranthus genus grows out in nature. - Sky Sailom Sangdad/Shutterstock Butterflies are more than just sets of pretty patterned wings and an easy at-home science project ...

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 ...

In May, when my new, blue butterfly bush started to bloom, I realized it could be the focal point for a patriotic garden. It also was the season for patriotic sentiments with Memorial Day, Flag Day ...

Katherine Gallagher is a writer and sustainability expert. She holds a B.A. in English Literature from Chapman University and a Sustainable Tourism certificate from the GSTC. An evergreen flowering ...

Beautiful and fragrant blue petunias get their unusual color from a molecular defect in the system that controls the acidity of the plants' cells. A new study reveals this defect in full, solving the ...

Hydrangeas are among the most loved ornamental plants in gardens across the world, admired for their large, globe-shaped ...

Blue butterfly pea is a perennial tropical vine known for its striking, vibrant blue flowers. It has an interesting botanical name, Clitoria ternatea, because the flower’s shape resembles a human ...

Blue flowers are rare in nature, and for good reason: the color is usually the result of mutations and quirks of acidity levels rather than an actual blue pigment. That makes genetically engineering a ...

Adrian Dyer receives funding from The Australian Research Council. At a dinner party, or in the schoolyard, the question of favourite colour frequently results in an answer of “blue”. Why is it that ...