Basil, also known scientifically as Ocimum basilicum, is a herb that is commonly grown in home gardens and farms across the United States. It grows predominantly during the summer months, when the temperatures are warmer.

Regional Growth

In the US, basil can be found growing in almost every state:

• Northeast: States like New York, Pennsylvania, and Massachusetts have ideal climates for basil during summer.
• Midwest: Illinois, Iowa, and Kansas home growers often include basil in their gardens.
• South: The warmer states such as Texas, Florida, and Louisiana are optimal for basil growth.
• West: California, Oregon, and Washington also see widespread cultivation of basil.

Urban Areas

Even in urban environments, basil can be grown in pots and containers, making cities like New York City, Los Angeles, Chicago, Houston, and Phoenix potential places where basil pollen can be produced.

Commercial Cultivation

In the commercial context, basil is extensively grown in California which is home to a large number of farms and agricultural land. This equates to a higher presence of basil pollen during the plant's blooming seasons.

Regardless of the location, as long as the right conditions of well-drained soil and full sunlight are provided, basil can thrive, producing the pollen that some people may be allergic to.

Individuals allergic to Basil pollen should typically avoid certain foods that could exacerbate their symptoms because of cross-reactivity, something known as oral allergy syndrome (OAS). The foods to avoid are those that contain proteins similar to those found in Basil pollen, leading the immune system to react to them in a similar way as it would the actual pollen.

Foods to Avoid

• Raw tomatoes: Tomatoes, especially when raw, contain proteins that the immune system could mistake for Basil pollen, resulting in an allergic reaction.
• Melons: Similar to tomatoes, melons like cantaloupe and watermelon also have proteins akin to those in Basil pollen and can trigger allergic symptoms.
• Bananas: While they might not seem related, bananas have proteins similar to those in Basil pollen and could potentially exacerbate Basil pollen allergy symptoms.
• Zucchini and cucumber: Both these vegetables can cause an allergic reaction as they have proteins similar to those in Basil pollen.

Remember, each person's allergic reactions are unique, and thus, the foods listed above may not apply to everyone. You should consult a healthcare provider or allergist for personalized advice related to food restrictions.