What Are Springtails in Houseplant Soil? (And Why They Might Be Harmless)

What Are Springtails in Houseplant Soil? (And Why They Might Be Harmless)


If you’ve spotted tiny pale specks hopping around on top of your potting soil — or floating in a saucer of water under the pot — the alarming part is usually the jumping, not the actual damage. In most cases, what you’re looking at is springtails, and unlike almost every other creature that shows up in a houseplant’s soil, springtails aren’t actually eating your plant.

What springtails are

Springtails (order Collembola) are tiny arthropods, typically 1-2mm long, pale white, gray, or tan. They’re named for a spring-loaded, tail-like appendage folded under their body that lets them flick themselves several inches into the air when disturbed — which is exactly the behavior most people notice first, usually right after brushing the soil surface or watering.

Crucially, springtails feed on decaying organic matter, fungi, algae, and mold in the soil, not on living roots or foliage. Their presence is a byproduct of consistently moist soil, not a sign that something is actively attacking your plant.

How to tell them apart from fungus gnats

Springtails and fungus gnats show up under similar conditions and get confused constantly, but they’re easy to tell apart once you know what to look for:

  • Springtails jump and crawl. They don’t fly, and they’re usually seen clustered on the soil surface or floating on standing water.
  • Fungus gnats fly. The adults look like small dark flies buzzing weakly around the plant or landing on nearby surfaces — if what you’re seeing has wings and flutters up when disturbed rather than hopping, it’s a gnat, not a springtail.

Fungus gnat larvae do feed on fine root hairs and organic matter in soil, which makes them a genuine (if usually minor) pest. Springtails don’t feed on roots at all, which is the main practical difference between the two.

Why they show up

Springtails need moisture to survive and reproduce, so their presence almost always points to soil that’s staying damp for longer stretches than it should — a saucer that never gets emptied, a pot that drains slowly, or a watering routine that’s a bit heavier than the plant actually needs. See overwatering vs underwatering houseplants if you’re not sure whether your watering pattern is running on the wet side.

They can also arrive in a bag of potting soil or on a new plant, since they’re common in any moist organic material, including outdoor garden beds and compost.

Do you actually need to get rid of them?

Not necessarily. Since springtails don’t feed on your plant, a small population isn’t harming anything, and plenty of people simply leave them alone once they understand what they’re looking at. That said, a visible population is still worth addressing for two reasons: it’s unpleasant to look at, and it’s a reliable signal that your soil is wetter than ideal, which raises the risk of actual problems like root rot even if the springtails themselves aren’t the cause.

How to reduce or eliminate them

Let the soil dry out more between waterings. This is the real fix, since it addresses the moisture springtails depend on rather than just the springtails themselves. See watering houseplants the right way for judging by soil feel instead of a fixed schedule.

Empty standing water from saucers and decorative covers promptly after watering, rather than letting the pot sit in it.

Consider switching to bottom watering for plants that seem especially prone to springtails, since it keeps the top layer of soil — where springtails congregate — drier even while the root zone gets adequately watered.

Improve drainage if the pot or soil mix is holding water longer than it should, since slow drainage is often the underlying reason watering that seems reasonable still leaves the soil damp for extended periods.

A large, sudden population explosion, or springtails showing up alongside a plant that’s declining, is worth treating as a prompt to check the roots for rot rather than a springtail problem specifically — see the broader rundown of what else might be going on in common houseplant pests and how to get rid of them. In that case, fixing the excess moisture solves both issues at once.