One way to control the mosquito population in your garden without using harmful chemicals is to grow some yarrow plants to attract one of their natural predators — the dragonfly.
Yarrow is a low-maintenance perennial native North American wildflower that draws pollinators, including dragonflies. It’s best to grow it in containers as it can become invasive.
Yarrow needs a loose, general-purpose potting soil without fertilizer. Plant it in full sun, add mulch or compost, check the soil daily, and water it if the top 2 inches feel dry.
While dragonflies are known for their ability to control mosquito populations, they also feed on small pollinators and will be drawn to pollinator gardens.