{"id":17904,"date":"2021-07-26T11:09:04","date_gmt":"2021-07-26T15:09:04","guid":{"rendered":"https:\/\/greatbiggreenhouse.com\/?p=17904"},"modified":"2025-04-28T13:21:23","modified_gmt":"2025-04-28T17:21:23","slug":"bonnies-garden-let-fireflies-light-up-your-life","status":"publish","type":"post","link":"https:\/\/www.meadowsfarms.com\/great-big-greenhouse-gardening-blog\/bonnies-garden-let-fireflies-light-up-your-life\/","title":{"rendered":"How to Attract Fireflies to Your Virginia Garden"},"content":{"rendered":"

One of the things I enjoy most in my wildlife-friendly yard is watching the fireflies. What kid hasn\u2019t run around their backyard at dusk chasing fireflies?<\/p>\n

When I was a kid, I remember summer evenings at my grandparents\u2019 house. My grandparents, my parents, sometimes my favorite aunt and uncle, all sat on the front porch drinking iced tea. My sister, brother, two cousins, and I ran around the huge front yard catching fireflies and holding them in our hands. Years later, those memories are still so vivid.<\/p>\n

What Are Fireflies, Really?<\/h2>\n

Fireflies are not flies at all but beetles, belonging to a family called Lampyridae. There are several species of fireflies native to Virginia. Most belong to either the genus Photinus or Photuris.<\/p>\n

Fireflies like grassy or wooded areas near water sources. They also like warm, humid weather\u2014welcome to Virginia in the summer!<\/p>\n

How Do Fireflies Light Up?<\/h2>\n

Fireflies produce light with cells called photocytes that contain a chemical called luciferin. An enzyme, called luciferase, interacts with luciferin to make light. The light produced by a firefly is cold, generating no heat. Nearly 100% of the energy used is given off as light. In contrast, the energy used by a regular incandescent light bulb gives off 10% light and 90% heat.<\/p>\n

Fireflies Are Good for Your Garden<\/h2>\n

Fireflies spend most of their lives as larvae\u2014glowworms. The larvae are predators and feed on slugs, snails, and other insect larvae. The females lay eggs soon after mating, and the larvae hatch shortly thereafter and feed all summer. They hibernate over winter, feed again in the spring, then pupate for a short two-week period before hatching in early summer.<\/p>\n

It\u2019s usually the males we see lighting up our yards on a summer night, signaling for a mate. Each species has its own particular signal pattern. The females tend to wait in trees or shrubs, and when they see a prospective mate, they signal back.<\/p>\n

Some females of the genus Photuris, however, use signaling for a more sinister purpose. She\u2019ll mimic the flashing pattern of females of a different species, and when the male approaches, expecting to find a mate, he becomes lunch instead. Most fireflies aren\u2019t cannibals however, they eat pollen and nectar.<\/p>\n

The Very, Very Big Firefly Show<\/h2>\n

There are two spots in the United States: Congaree National Park in South Carolina and the Great Smoky Mountains near Elkmont, Tennessee, where fireflies, sometime in early June, will inexplicably begin to synchronize their blinking. Scientists are not sure why. But that must be pretty incredible to see.<\/p>\n

In the United States, one of the most famous sightings of fireflies blinking in unison occurs annually near Elkmont, Tennessee, in the Great Smoky Mountains during the first weeks of June. Congaree National Park in South Carolina is another host to this phenomenon.<\/p>\n

Experts Are Concerned<\/h2>\n

Some experts are concerned that firefly populations are dwindling. So much of their native environment has been destroyed. So many ponds have been filled in to turn into housing developments. Scientists have also found that fireflies are sensitive to the same chemical pesticides that are killing our bees\u2014neonicotinoids. And excessive nighttime lighting\u2014street lights, porch lights, even car headlights may interfere with their mating cycles.<\/p>\n

How to Encourage Fireflies to Visit Your Yard<\/h2>\n

To encourage fireflies in your yard, we recommend:<\/p>\n