By Thom Luloff, Master Gardener in Training

Tucked away in the cool corners of gardens, beneath leafy cover and damp soil, lives an unassuming champion of ecological balance: the American toad (Anaxyrus americanus). With their warty skin, endearing hops, and golden eyes, these amphibians may not boast the charisma of butterflies or hummingbirds, but their contributions to gardens are unparalleled. Often overlooked, the American toad quietly goes about its work, consuming pests, enriching the soil, and maintaining harmony in ecosystems. It’s time we shine a light on these remarkable creatures and embrace their presence in our outdoor spaces.

The American toad, native to eastern North America, thrives in a range of environments, from woodlands to suburban backyards (Elliott et al., 2009). Unlike frogs, toads are covered in warty, textured skin, an adaptation that provides effective camouflage against predators. This camouflage, combined with their nocturnal habits, allows them to move unnoticed as they perform their crucial ecological roles. Chief among these roles is pest control. Each evening, American toads emerge from their shelters to feast on insects, slugs, and other invertebrates. By consuming thousands of pests in a single season, they provide natural, chemical-free pest management, an essential service for gardeners and farmers alike (Mitchell & Lannoo, 2020).

In gardens, toads reduce populations of harmful insects like beetles,
cutworms, and mosquitoes, preventing these pests from damaging plants or spreading disease. Unlike chemical pesticides, which often harm beneficial insects and pollute the environment, toads work in harmony with nature, maintaining ecological balance without collateral damage (Relyea, 2005). Furthermore, their waste contributes organic nutrients to the soil, promoting plant health and improving soil quality—a testament to the interconnectedness of life in the garden.

The life of an American toad is a remarkable journey of survival,
reproduction, and adaptation. During the day, toads shelter under
rocks, logs, or thick vegetation to escape predators and prevent
dehydration. At night, they hunt using their long, sticky tongues to
capture prey with incredible precision. In spring, their lives become
even more captivating as males gather at ponds, streams, or garden
water features to call for mates. Their trills, a hallmark of the
breeding season, are a welcome sign of spring. After mating, females
lay long strings of eggs, often numbering thousands, which hatch into algae-grazing tadpoles within days (Elliott et al., 2009). These
tadpoles play a vital role in keeping aquatic ecosystems healthy by
controlling algae growth.

Toads are also experts at enduring winter, surviving through a process called hibernation. As temperatures drop, toads burrow deep into the soil, often using loose dirt, leaf litter, or even garden waste as insulation. These layers protect them from freezing temperatures and provide shelter from predators (Mitchell & Lannoo, 2020). For this reason, leaving leaf piles and garden debris untouched during fall and winter is critical. These natural materials serve as vital hibernation sites, not just for toads but also for other beneficial creatures like pollinators and soil invertebrates. Clearing the garden too early in the spring can disrupt or destroy these overwintering habitats, inadvertently harming the wildlife that supports your garden’s health. Waiting until temperatures consistently rise ensures that these creatures can safely emerge and resume their roles in the ecosystem.

Despite their adaptations, American toads face numerous predators, including snakes, birds, and mammals. However, their warty skin serves as more than camouflage—it secretes a mild toxin that deters many would-be predators (Mitchell & Lannoo, 2020). Some toads even use dramatic behaviors, such as flipping onto their backs and feigning death, to discourage attacks.

Beyond their ecological contributions, American toads are fascinating creatures with unique traits. They can live over a decade in the wild, a testament to their resilience and adaptability (Elliott et al., 2009). They can also change their skin color slightly to blend with their surroundings, shifting between lighter and darker tones based on temperature and humidity. These subtle abilities add to the toad’s allure for those who take the time to observe them closely.

Creating a toad-friendly garden is simple and deeply rewarding. To
attract toads, provide shelter using overturned flowerpots, rocks, or
logs, and allow areas of dense vegetation or mulch for shade. A
shallow water feature is a magnet for toads, especially during
breeding season, but ensure the water source has sloped edges to allow easy entry and exit. Perhaps most critically, avoid using pesticides and herbicides, which can harm toads directly or contaminate their food sources (Rowe et al., 2001). Leaving leaf litter and reducing outdoor lighting can also make your garden more inviting to these nocturnal helpers.

A garden with toads is a garden alive with balance, biodiversity, and
beauty. These humble amphibians are more than just pest
controllers—they are symbols of a healthy ecosystem, reminding us of nature’s intricacy and resilience. By encouraging toads to share our outdoor spaces, we not only protect these vital creatures but also create gardens that are richer, more sustainable, and teeming with life.

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References

Elliott, L., Gerhardt, H. C., & Davidson, C. (2009). The Frogs and
Toads of North America: A Comprehensive Guide to Their Identification,
Behavior, and Calls. Houghton Mifflin Harcourt.

Mitchell, J. C., & Lannoo, M. J. (2020). Amphibian Declines: The
Conservation Status of United States Species. University of California
Press.

Relyea, R. A. (2005). The impact of insecticides and herbicides on the
biodiversity and productivity of aquatic communities. Ecological
Applications, 15(2), 618-627. https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.1890%2F03-5346&data=05%7C02%7C%7C12574bb3c25c4100183608dd1494ba31%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638689351237579258%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=GMFHZIGNlxU6ElTdRGFb3QRIoRBvNAY9NFtYojOM%2FNA%3D&reserved=0

Rowe, C. L., Hopkins, W. A., & Coffman, V. R. (2001). Exposure to low
levels of heavy metals can negatively affect amphibians. Environmental
Toxicology and Chemistry, 20(2), 250-256.
https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.1002%2Fetc.5620200206&data=05%7C02%7C%7C12574bb3c25c4100183608dd1494ba31%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638689351237606364%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=zex7S5eViOAadRc9ys8EUKqe25NQNoGUK9dPcrMeLic%3D&reserved=0