What are plant allergens?

In the spring, many people suffer from what is called hay fever, which is caused by pollen and other grasses. Maybe you are part of it. The main symptoms are: sneezing, red eyes and runny nose. So, if this is your case, discover the most allergenic plants to avoid planting them, but also the possible alternatives.


Grasses are among the most allergenic plants. They mainly include cereal plants, but also ornamental ones. They are generally robust and easy to maintain plants. Their pollination takes place by the wind, which is why they release so much pollen into the air.

Alternatives : rush or bulrush in humid places or Sedges to be placed in partial shade.

Credits: lorrichek / iStock

The ericaceous plants

Heather soil is an acid soil. There are rhododendrons, hydrangeas and even magnolias. They are usually colorful flowers with dark leaves. Good news, they are hypoallergenic! You will find all possible shapes and colors.


Most conifers and pines produce a lot of pollen. And yet, they are not all allergens. The one you really need to avoid contact with is cypress. Indeed, cypress is very allergenic and you risk developing several annoying symptoms.

Alternatives : junipers and yews.

Japanese Cypress Opaal
Credits: VICHAILAO / iStock

Hypoallergenic plants

Here are some plants to create your hypoallergenic garden.

Flowers : roses, geraniums, chrysanthemums, wisteria, jasmine and honeysuckle.

In the vegetable garden: most vegetable plants are non-allergenic. Tomatoes, carrots, squash, leeks, asparagus, radishes, potatoes, basil and all aromatic plants can therefore be grown without fear. The only ones to avoid are rhubarb and parsnip, which can sometimes be allergenic.

Also think about arranging your garden with mineral pieces and maintain it in order to avoid weeds and allergenic plants.