Summer brings days filled with sunshine, BBQs, poolside parties, and many other activities guaranteed to put smiles on our faces. Unfortunately, all of that outdoor time usually means the onslaught of runny and stuffy noses, watery and itchy eyes, hives, itchy skin, coughing, and painful sinus pressure. According to the American Academy of Allergy Asthma and Immunology, over fifty million people suffer from allergies every year. What specific allergens affect us depends on where we live in the country. With summer right around the corner, now’s the time to find out what allergens to look out for and how to combat their affects so that our season is sneeze-free.
According to this regional allergy guide, the U.S. is divided into eight sections based on allergens and pollination times. During the late spring and summer months, tree pollination is ending, ushering in grass and weed pollen season and a host of allergy symptoms.
Pacific
California, Oregon, and Washington’s tree (walnut, rye, and cedar) pollination season ends at the beginning of July. Grasses like bluegrass, Bermuda grass, orchard, wheat grass, and sweet vernal start spreading their seeds in March and don’t stop until November. Ragweed, sage, and chenopod can also cause problems all the way until November.
Southwest
In Texas and Oklahoma, troublesome trees like cedar, oak, and elm pollinate until June. Grass season, which includes culprits like Bermuda and quack grass, lasts until September. Similar to the Pacific region, ragweed and chenopod are the main weed allergens in these states.
Mountain
This region includes Utah, Nevada, Wyoming, Colorado, Montana, and Idaho. May is the last month for maple, cedar, and oak trees to cause allergies here. Starting in April, grasses such as wheat grass, redtop, orchard, and Bermuda begin pollinating and keep going until July. Weed season starts in June, with ragweed and tumbleweed targeting people until fall.
Plains
Like the Mountain area, Nebraska, Kansas, and the Dakotas come to the end of tree season—offenders include birch, hazelnut, oak, and maple—in May, just in time for grasses like wheat grass, brome, and orchard grass to start pollinating. Grass season ends in July, which is when weeds like ragweed, nettle, and plantain take over.




