The color blue aids relaxation, which makes it a great choice for the flowering plants in your yard. Here are 11 trees and ...

Psst—these are the best perennials to grow for hummingbirds. Great blue lobelia is cardinal flower’s blue counterpart (Lobelia siphilitica, Zones 4 to 9). The two are very eye-catching when ...

Native to the rainforests of Mexico, Central America and South America, this bright blue butterfly has a short but stunning life. It is thought that the colour helps the males to mark their ...

The Smith's blue butterfly may be tiny, but it's endangered in a big way. It spends its whole life within a few hundred yards of two native plants, seacliff buckwheat and coast buckwheat — and is ...

After Hurricane Andrew ripped through South Florida in 1992, the already-scarce Miami blue butterfly almost went extinct: No one recorded a single sighting for years. Finally, in 1999, a cheer went up ...

The Tsushima Blue Quaker butterfly, an iconic symbol of Tsushima ... and dry leaves and switched from an unglazed to a plastic flower pot. Eventually, they found the ideal level of humidity ...