For late-season purple flowering plants, read our complete aster flower growing guide. I found this beautiful and unique bloom in the Sunken Garden at the Warner Castle.

About 20 years ago, she set out to create a transgenic tomato, using DNA from another unrelated organism, in this case, a purple snapdragon, which is an edible flower.

Geoff Call, a biologist with the U.S. Fish and Wildlife Service in Tennessee, says it's taken 30 years to get the bright purple flower with a spiky dark center back on its feet. "We seldom have ...

The plant comes in a range of colors, but usually purple, white and blue. Some species of monkshood that aren’t native to Alaska come in yellow, or a two-tone blue and white.