As a homeowner, you may have noticed the buzzing of bees and wasps in your backyard. While both insects may look similar at first glance, they serve different roles in your garden ecosystem. In this article, we will answer whether wasps are pollinators, explain how wasps pollinate flowers, look at the plants that depend on them, and cover how to safely coexist with them in your backyard.
For non-aggressive wasps I've had great luck spraying nests with this Spectracide wasp remover in the evening. For a nest up high in an eave, soffit, or tree, this Gotcha pole adapter clamps onto the can so you can spray from the end of an extension pole and treat the nest from 10+ feet away instead of standing right under it. And for anything aggressive I wear this ridiculous-looking upper torso beekeeping suit and keep my distance. It seems silly, but trust me, I learned the hard way.
Short answer: Yes, wasps do pollinate. Adult wasps drink nectar for energy, and as they move from flower to flower they carry pollen with them. Most wasps are less efficient pollinators than bees, but some plants, including figs and certain orchids, depend entirely on wasps to reproduce.
Pollinators are animals that help plants reproduce by transferring pollen from the male part of the flower to the female part. This process is essential for the growth and survival of many plants, including fruits, vegetables, and flowers. While bees are the most well-known pollinators, other animals, including wasps, flies, beetles, butterflies, and moths, also play a crucial role in pollination.
Yes, many wasp species help pollinate plants. However, unlike bees, most wasps do not actively collect pollen. Instead, adult wasps feed on nectar, and as they move from flower to flower, they inadvertently transfer pollen that sticks to their heads, legs, and bodies.
While wasps may not be as effective as bees when it comes to pollination, they still play a vital role in your backyard ecosystem. Many species of wasps prey on pests that can damage your plants, and scavenging wasps such as yellowjackets help clean up dead insects.
The most remarkable example of wasp pollination comes from the tiny fig wasp, which is the only insect capable of pollinating many fig trees. Fig flowers bloom hidden inside the fruit, so only a wasp small enough to crawl inside can reach them — a partnership so tight that neither the fig nor the wasp can reproduce without the other. It is one of nature’s clearest examples of mutualism.
To understand why wasps end up carrying pollen, it helps to know what wasps eat. Most adult wasps run on sugar. They drink flower nectar, honeydew from aphids, and juice from ripe fruit. Their larvae are a different story: social wasps like paper wasps and yellowjackets feed their young chewed-up insects, and solitary hunting wasps stock their nests with paralyzed prey.
That split diet is what makes wasps pollinators. A wasp visits a flower for nectar, brushes against the anthers, and picks up pollen grains on its face, legs, and body. When it lands on the next flower of the same species, some of that pollen rubs off onto the stigma, and the flower is pollinated.
A few details shape how well this works:
Some plants rely on wasps so heavily that they could not reproduce without them. These are the most striking examples:
There are roughly 750 or more species of fig trees worldwide, and nearly every one is pollinated by its own specialized fig wasp. A female fig wasp squeezes into the developing fig through a tiny opening, pollinates the flowers inside, lays her eggs, and dies. Her offspring hatch inside the fig, mate, and the new females fly off carrying pollen to another fig. Some cultivated fig varieties sold in grocery stores don’t need pollination at all, but wild figs and many commercial varieties still depend on this ancient partnership. Learn more in our fig wasps guide.
Several orchids have evolved to look and smell like female wasps. Male wasps try to mate with the flower, and in the process they pick up or deliver pollen. Australian hammer orchids are pollinated this way by male thynnine wasps, and some tongue orchids are pollinated by a male ichneumon wasp. The mirror orchid of the Mediterranean region is pollinated by a male scoliid wasp. The wasp gets nothing from the exchange, but the orchid gets pollinated.
Pollen wasps (subfamily Masarinae) are the one group of wasps that behave like bees. Instead of feeding their larvae insects, they provision their nests with pollen and nectar. They are found mainly in dry regions, including parts of the western United States, where some species are closely tied to wildflowers like penstemons and phacelias.
Some common plants also lean heavily on wasps. Figworts (Scrophularia) are visited mainly by social wasps, and the broad-leaved helleborine orchid, a European species that has spread into parts of North America, is pollinated largely by yellowjackets and other social wasps. Wasps are also regular pollinators of milkweeds, where the pollen sacs clip onto their legs as they feed.
In general, no. Bees are the most important pollinators for most crops and wildflowers because they deliberately collect pollen and their hairy bodies carry a lot of it. A single bee can carry far more pollen than a typical wasp.
That said, scientists increasingly think wasps have been underrated. A 2023 review in the journal Ecological Entomology gathered research on wasp pollination and concluded that, in some respects, wasps can be comparable to bees as flower visitors and pollen carriers. Wasps are especially important for the plants that have evolved to depend on them, and they add a layer of backup pollination in gardens and natural areas.
There is also an evolutionary link: bees actually evolved from a group of predatory wasps roughly 100 million years ago. Over time, those ancestors switched from feeding their young insects to feeding them pollen, and the hairy, pollen-carrying bee was born. In a sense, every bee is a wasp that went vegetarian.
| Bees | Wasps | |
|---|---|---|
| Body hair | Dense, branched hairs that trap pollen | Mostly smooth, few hairs |
| Collects pollen on purpose | Yes, to feed larvae | Rarely (pollen wasps are the exception) |
| Adult diet | Nectar and pollen | Nectar, honeydew, fruit juice |
| Larval diet | Pollen and nectar | Insects and spiders (most species) |
| Pollination efficiency | High for most plants | Lower overall, but essential for some plants |
| Pest control | Minimal | Significant: hunt caterpillars, aphids, flies, and more |
For a full side-by-side comparison, see our wasp vs bee guide.
Yellowjackets and paper wasps both visit flowers for nectar, so they do pollinate to some degree. Paper wasps are common visitors to goldenrod, fennel, and milkweed, and you’ll often see them working flowers in late summer.
Yellowjackets are minor pollinators. They visit flowers, but they are mostly predators and scavengers, and by late summer and fall many switch to sugary foods like ripe fruit, soda, and spilled drinks. They are much more important as predators of garden pests than as pollinators, and they are also more defensive around their nests, so they deserve more caution than most flower-visiting wasps.
Solitary wasps, such as great golden digger wasps, great black wasps, and potter wasps, are frequent flower visitors and very rarely sting people. They are some of the best wasps to have in a pollinator garden.
Because wasps have short tongues, they prefer flowers with open, easy-to-reach nectar. If you want to support wasp pollinators (or want to know which plants to keep away from doors and patios), these are the plants wasps visit most:
If you would rather keep wasps at a distance from where you sit and eat, see our guide to plants that repel wasps and plan your garden so the wasp-friendly flowers are farther from the house.
Wasps and bees may look similar, but there are several key differences between the two insects. Wasps are generally slimmer than bees, with a narrow “waist” between the thorax and abdomen. Unlike bees, which are usually covered in fine hair, most wasps have smooth, shiny bodies.
Behaviorally, social wasps tend to be more defensive than bees, especially near their nests and in late summer. Honey bee workers usually die after stinging because their stinger is barbed, but wasps have smooth stingers and can sting more than once. Many other bees, like bumble bees, can also sting more than once. Most wasps you see on flowers are focused on feeding and rarely sting unless they are grabbed, stepped on, or trapped against skin. For more on this, see are wasps aggressive?
Wasps also don’t make honey the way honey bees do, though a few tropical species store small amounts. Read more in do wasps make honey?
While wasps and bees may seem like unwanted pests, they play an important role in your backyard ecosystem. Here are some tips for safely coexisting with these insects:
A wasp feeding on flowers is not the same as a wasp nest by the house. If a paper wasp or yellowjacket nest is next to a doorway, in a play area, or anywhere people pass often, it may need to be removed. Anyone with a known allergy to stings should not attempt nest removal themselves; a licensed pest control professional is the safest option. If you are stung and develop hives, swelling of the face or throat, or trouble breathing, seek emergency medical care right away.
Yes. Adult wasps visit flowers to drink nectar and carry pollen between them. They are less efficient than bees on most plants, but they are the main or only pollinators of figs and certain orchids.
Not quite. Bees intentionally gather pollen and carry it on hairy bodies. Wasps mostly pick up pollen by accident while drinking nectar, and their smooth bodies hold less of it. Pollen wasps are the exception: they collect pollen to feed their young, much like bees.
Wasps visit the flowers of many garden plants and can contribute some pollination, but bees do most of the work for common vegetable and fruit crops. Figs are the big exception, since wild figs and many fig varieties rely on fig wasps.
Wasps are valuable predators that control caterpillars, aphids, flies, and other pests, and they also pollinate. Killing every wasp you see removes free pest control from your yard. It makes sense to deal with nests that are in high-traffic spots, but wasps foraging in the garden are usually best left alone. Learn more in what do wasps do for the environment?
Very. Beyond pollination, wasps are among the most important predators of insects, and tiny parasitic wasps are used in agriculture as natural pest control. Wasps are also food for birds and other animals; see what eats wasps.
So, are wasps pollinators? Yes. Wasps do pollinate, and while their effectiveness is generally lower than that of bees, some plants could not survive without them. Add in their role as natural pest control, and wasps are some of the most useful insects in your yard. By understanding how wasps pollinate, how they differ from bees, and where to place flowers in your garden, you can enjoy a healthy, thriving garden ecosystem while keeping stings to a minimum.
For the full picture of how wasps live, forage, and defend their nests, see our Wasp Behavior & Biology Guide. To identify the species you are dealing with, see the Wasp Identification Guide.
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