Orchard Grass allergy: Symptoms, Treatment, Immunotherapy, Tips to avoid

Orchard grass, also known as Dactylis glomerata, is a common perennial grass found across various regions of the United States. Its growth is prevalent where temperate climates provide the ideal conditions for its survival. In the US, orchard grass predominantly thrives in the Northeast, Pacific Northwest, and parts of the Midwest. In the Pacific Northwest, states like Oregon and Washington offer the damp environment that orchard grass favors. The mild temperatures and plentiful rainfall create an optimal habitat for its growth and pollen production. Moving eastward, the grass is also well-adapted to the Northeastern states, from Maine down through Pennsylvania, New York, and into parts of New Jersey. Here, the grass benefits from the changing seasons and moderate climate. In the Midwest, particularly in states such as Ohio, Indiana, and parts of Illinois, orchard grass is common in meadows, along roadsides, and in agricultural fields. Although its distribution is not limited to these areas, the grass generally prefers temperate zones and is less commonly found in the arid Southwestern states or the extreme cold regions of the North. Each region's specific climate and soil conditions contribute to the presence and proliferation of orchard grass, making it a widespread allergen in these diverse areas.