Seeing yellow leaves on your petunia plant? It's likely one of these six reasons that has easy fixes to get your plant back ...

At a base cost of US$29.00, residents of the 48 contiguous states can get a petunia (Petunia hybrida) with flowers that look white during the day; but, in the dark, the plant glows a faint green.

Firefly petunias, genetically modified with bioluminescent mushroom DNA, glow in the dark. The glow, primarily from the flowers, is most vibrant in new blooms and is similar to moonlight.

bloomscape.com Purple Petunia, Persian Shield, and Calibrachoa Combination Kit Place this vivid Purple Petunia, Persian Shield, and Calibrachoa Combination Kit ($45) in a sunny spot in your garden.

Mexican petunias flourish with lots of sunlight, but they can grow well in full sun or partial shade. Plants in partial shade will have green stems and fewer flowers.

If you’ve spent any time on the internet over the past few weeks, you’ve probably stumbled upon the glow-in-the-dark petunia that scientists genetically engineered to emit a continuous green ...