The bioluminescence of 'Firefly' is increased with sunlight, so full sun is best. Glow will be most significant on new growth, fading slightly as blooms and foliage mature. Plant in well-draining soil. Use a potting mix that includes peat moss and a component that allows for good drainage. Water regularly, keeping the plant moist and never allowing it to dry out. Fertilize every week or so, using a balanced water-soluble fertilizer. No need for deadheading, but pruning is fine. Take indoors to enjoy as a houseplant in colder months.

Is there nothing new under the sun... or the moon? No way! 'Firefly' Petunia is new and unusual. It looks traditional by day, with true-green foliage and white trumpet-shaped blooms. But in darkness, it emits a soft glow, like the glow of the moon or the "fire" of a firefly. While nature can be thanked for Firefly Petunia's unusual characteristic (bioluminescence), it is science and careful breeding (genetic modification) that has helped things along. Award winner. Neighbors may know that your garden grows beautifully, but soon they'll see that it also glows beautifully.