Not every plant is good: 8 species that can cause allergies

Contact with plants indoors is associated with well-being, improved air quality, and a connection to nature. However, not all species are suitable for all types of residents. Some plants, when grown in internal projects, can trigger respiratory, skin, or eye allergies – especially in more sensitive individuals!

Pollen, sap, strong fragrances, fungi in the soil, and even particles released by leaves are among the main factors associated with household allergies. Knowing these species does not mean completely excluding them but understanding risks, management methods, and safer alternatives for each context.

Plants that require attention in domestic cultivation

1. Fern

Very common in living rooms and balconies, the fern releases a large amount of spores, which can worsen cases of rhinitis, asthma, and other respiratory allergies. In closed projects, the concentration of these particles tends to be higher, making cultivation less advisable for those who already have respiratory sensitivity.

2. Fig tree

Despite its elegant appearance, some species of fig tree, such as the benjamina, have a milky sap that can cause skin irritation and allergic reactions upon direct contact. Additionally, the plant releases particles into the air that, in some cases, are associated with allergic crises, especially when grown in poorly ventilated spaces.

3. Lily

The lilies attract attention for their intense fragrance, which can trigger respiratory allergies, headaches, and eye irritation. In internal projects, the aroma tends to concentrate, increasing discomfort for people sensitive to strong odors.

4. Ivy

Commonly used in green walls and hanging pots, the ivy can cause allergic reactions from skin contact, in addition to releasing substances that cause irritation. Its cultivation in internal projects should be carefully evaluated, especially in homes with children or allergic individuals.

5. Snake plant

Although known for its resilience, the snake plant has a toxic sap that can cause skin irritation and allergies upon contact. The risk increases during pruning or improper handling, making the use of gloves and basic precautions important.

6. Chrysanthemum

Common in arrangements and decorative pots, chrysanthemums can cause skin and respiratory allergies. Pollen and the substances present in the leaves are among the main irritants, especially when the plant is kept in internal projects for long periods.

7. Areca Palm

Although often indicated for interiors, the areca palm can promote the accumulation of dust and mites among its dense leaves. These factors contribute to worsening respiratory allergies, especially in places with insufficient cleaning and ventilation.

8. Violet

The violets usually do not cause direct allergies, but the constantly moist soil can promote the growth of fungi and mold, known triggers of allergies. Care with drainage and watering frequency is essential to avoid this problem.

How to reduce allergy risks at home

However, the presence of plants does not need to be eliminated – even in homes where there are sensitive individuals! Some simple measures help reduce allergy risks, such as prioritizing well-ventilated projects, avoiding an excess of plants in one single space, and maintaining regular cleaning of leaves and soil.

[caption id="68ff91fb823b2d3d97d82a59" width="736" data-alt="Paola Ribeiro - Casa Brisa Deca. CASACOR Rio de Janeiro project 2025." data-caption="" data-credit="Denilson Machado/MCA Estúdio" data-source-id="68f2b8ff98f18c7f5f5e4dea" data-source-name="CASACOR"][/caption>

It is also important to observe individual reactions. Frequent sneezing, itching, eye or skin irritation may indicate sensitivity to a particular species. In these cases, replacing with less allergenic plants, such as zamioculca, calatheas, or peperomias, can be a safer alternative.

CASACOR Publisher is an exclusive content creator, developed by the CASACOR Technology team based on the knowledge base from casacor.com.br. This text was edited by Yeska Coelho.