Allergens 101

Johnson Grass Allergy

Sorghum Halepense

This perennial grass grows quickly and causes moderate allergic reactions. Johnson grass is considered a damaging weed and is found on cropland, roadsides, wasteland, and along streams and canal banks.

Purchase Test

Common Johnson Grass Allergy Symptoms

  • Hay fever

  • Eye allergies

  • Asthma

When Is Johnson Grass Allergy Season?

 

Northeast

Northwest

Midwest

Southeast

South Central

Southwest

Alaska

Hawaii

January

 

 

 

 

 

 

 

 

February

 

 

 

 

 

 

 

 

March

 

 

 

 

 

 

 

 

April

 

 

 

 

 

 

 

 

May

 

 

 

 

 

 

 

 

June

 

 

 

 

 

 

 

 

July

 

 

 

 

 

 

 

 

August

 

 

 

 

 

 

 

 

September

 

 

 

 

 

 

 

 

October

 

 

 

 

 

 

 

 

November

 

 

 

 

 

 

 

 

December

 

 

 

 

 

 

 

 

Scroll

Where is Johnson grass found?

Johnson grass is found in most of the humid, warm temperate, and tropical parts of the world, including Australia, Turkey, South Asia, the Mediterranean, and the United States, where it was introduced as a forage crop in the 1830s.

Johnson can grow up to 7 feet long! It is also categorized as a weed in 53 countries because it damages crops, hosts pathogens and insects, and even poses a fire hazard.

Bottle

Recommended Johnson Grass Allergy Treatment

Avoid the allergen as best as you can and reduce symptoms through over-the-counter medications. If you would like to prevent your allergies from progressing or are looking for long-term relief, talk to your doctor about allergy immunotherapy or find out if you are eligible for NectarRx Allergy Treatment.

  • Check pollen counts daily

  • Wear sunglasses and/or nasal filters

  • Opt for air conditioning

  • Avoid freshly cut grassy areas

  • Shower after exposure

  • Use Benadryl, Claritin, or Zyrtec as needed

  • Treat with allergen immunotherapy

Purchase Test