15 trees and plants that can cause allergic reactions

If you are one of those people who suffer from pollen allergy, especially in spring, you will be interested to know which plants and trees you should not have at home because they aggravate the symptoms. Read on and we’ll tell you.

15 trees and plants that can cause allergic reactions

Latest update: May 22, 2023

Despite their various benefits for decor, health and harmony, there are some plants that you should not have in your home because they can trigger allergic reactions. She can provoke certain reactions in sensitive people.

Particularly when spring arrives, most plant species, both arboreal and herbaceous, flower strongly. This means an increase in pollen in the environment.

And, that exacerbates allergic reactions if you have them indoors or in the garden. Here are the plants you should take precautions with.

Advantages and disadvantages of plants

Can do indoors plants have a decorative function. In this sense, they bring a touch of naturalness to the atmosphere of the room in which they are located, be it the living room, hallway, bedroom or bathroom.

There are several varieties that are common for such purposes, with or without flowers. Among the most colorful, attractive and decorative are small palms, ferns, aloe vera and orchids.

Except decoration they have other benefits as well. For example, some help purify the air, as well as lower humidity and control dust and airborne particles. Some even believe they attract good luck.

But it’s not all benefits; there are also disadvantages. There are plants that can be dangerous because they are poisonous, such as belladonna, philodendron, dragon tea and hydrangea.

She be able to also Attract insects that are annoying and difficult to control such as ants or bees. And if that wasn’t enough, some of them provoke reactions in sensitive people. This is the case with people who suffer from a pollen allergy.

The incidence of this problem can vary by population: between 8% and up to 40%, depending on the region or time of year. One study found that more than half (52.8%) of patients who showed respiratory symptoms suffered from a pollen allergy.

And upon contact with this allergen, various allergic reactions can occur in the sensitive person:

  • Red eyes.
  • Sneezing fits.
  • Nasal congestion and runny nose.
  • Difficulty breathing.
  • Muscle strain.

Also check out this article:
8 tips for surviving pollen allergies

15 trees and plants that can cause allergic reactions

Allergy to pollen

According to some studies (Spanish link) on this subject these early spring pollen allergy symptoms tend to flare up. They increase in intensity, especially when there is more sun and wind.

However, this is not the only type of reaction that can occur in people with allergies in the presence of certain plant species. Then let’s see which plants you shouldn’t have in your home if you suffer from allergies.

1. The common plane tree

The name sycamore is a common name that refers to several species, including the oriental plantain and the platanus x hispanica. Although they are native to Europe and Asia, you can find them almost everywhere in the worldespecially in parks and gardens.

They can reach large dimensions. Some specimens reach up to 30 meters. Their main feature is a thick trunk, dense crown, palmate leaves and fruits resembling a hedgehog. They live for many years.

Flowering occurs in late winter and continues throughout spring. Research suggests that the fruit’s fluff can cause allergic reactions unrelated to pollinosis.

2. The chestnut tree

Although an abundant species in temperate regions of the Northern Hemisphere, allergic reactions are common chestnut pollen quite rare, as mentioned in studies (Spanish link). However, it can cause sensitization in some people, so be careful.

3. The poplar

The name poplar generally refers to several species of the genus Populus. We know them as poplars. They are not very tall trees, although some can grow up to 25 meters.

In addition, they are common in northern, temperate or cold regions. In particular the pollen of Populus nigra can being an allergenalthough its activity in this regard is quite limited compared to other species.

4. Black alder trees

The alder
The alder is strongly associated with acute flare-ups in people with asthma.

Its scientific name is Alnus glutinosa. It is a species from the Betulaceae-family. It is also common in Europe, Asia and North Africa. It grows up to 20 to 30 meters high.

Although it is being removed from urban environments, it is still common in fields, especially along riverbanks. In the field of allergies, research (Spanish link) shows that 14.4% of asthmatics are sensitive to the pollen of this species.

5. The birch

Common name for Betula pendulumas well as various deciduous trees of the Betulaceae family. Its size varies from 10 to 30 meters.

It has diamond-shaped leaves and whitish bark. It is abundant in much of the Northern Hemisphere, where it forms large forests.

Its pollen is one of the main allergens in countries like Japan, where it is grown uncontrolled. In addition, he is considered responsible for causing cross allergies.

6. The Ash

In a study (Spanish link) in Aguascalientes (Mexico), with allergic patients, determined after a skin test that 44% were sensitive to Fraxinus excelsior. This species is commonly known as es.

7. The holm oak

The holm oak (Quercus ilex) belongs to the fagaceae family. It is found in many parts of the world, especially in temperate climates, both in the north and in the south.

His wood is highly valued. But its pollen is harmful to allergy sufferers. In the spring, in the months of April and May, when it is in full bloom, it causes outbreaks.

Also discover this article:
Allergy to pollen? Try these hypoallergenic flowers

8. Grasses

Cut grass is a grass that relatively often leads to allergic complaints in the population.

So far we have been talking about trees, that is, large plant species. You can have them at home if you have a large garden or yard.

Now we will see that among the plants that you should not have at home if you suffer from allergies, there are also some that are smaller. Such is the case with grasses, to which it is simply grass (Cynodon dactylon) belongs.

We find these grasses in golf courses, parks, avenues, squares or in the house. However, they are not the most recommended for sensitive people as they can affect the airways. The possibility increases when the grass is mowed because the spikes can move and spread more pollen.

9. Parietaria

It is also called glassherb called because it can use almost every crack or space, between walls or sidewalks, to grow. It is a herbaceous plant half a meter high. Its leaves are small, oval and hairy. Flowering can occur all year round, with pollination peaking between April and June.

Studies indicate that species of the genus Parietaria being one of the most common causes of pollination in the Mediterranean region. In particular P. judaica and P. officinalis are considered to cause sensitization.

10. Sunflowers

Within the genus Asteraceae). are some of the most commonly used plants in horticulture, whose flowers are also used in bouquets. But at the same time they have a high allergenic potential.

An example of this is sunflowers. It’s interesting to note that there are people who are allergic to the pollen of their flowersand that there can also be a reaction to eating sunflower seeds, although the latter is not very common.

11. Dahlias

Dahlias also belong to the genus Aster. Because of their attractive colors you often see them in bouquets as decoration. But, they are not suitable for people with allergies. They can the development of various nasal complaints cause.

12. True Jasmine

Jasmine officinalewhose common name jasmine belongs to the genus Olacea. And although it is very beautiful and easy to grow, in pots or in the ground, it belongs to the plants you shouldn’t have in your home if you suffer from allergies.

13. Wild privet

Wild privet (Ligustrum vulgare) is another member of the Oleaceaefamily. It is a shrub that grows up to two meters in height. He can be seen in urban areas, where he planted in squares and avenues, because of its attractiveness and the pleasant scent of its flowers.

It is also common in indoor gardens, because it can grow in the shade. However, it is not suitable for people with allergies and respiratory problems.

14. The olive tree

Olive trees can also cause allergic reactions
Besides the productive olive tree plantations, there are also houses that plant it in their backyards for decoration.

People appreciate Olea europaea very much for its fruits and derivatives. It is however another species to avoid, especially in spring, when it blooms, because pollen production is also high.

15. Lilac

The lilo (Syringa vulgaris) is a relative of the olive tree, with which he has in common that it produces abundant pollen. But because it is a species that can thrive in almost any soil and has very showy flowers, it is very popular in horticulture.

Recommendations to prevent allergic reactions

It is possible that some symptoms of hay fever or allergic rhinitis performance. In that sense it should you, if you are a sensitive person, take some precautions.

For example, if you go outside during this season, and you have to pass through areas where there is an abundance of the above plant species, you must wear a mask or chinstrap. Also keep the windows closed when you go by car.

Of course you have to do not have these plants in your home if you suffer from allergies. If there are, it is recommended to remove them. Of course, it is not always good or possible to do this if it is a tree in the garden (cutting depends on the legislation in each country).

In any case, take precautions such as avoiding exposure in the spring or keeping the doors and windows of your room open. And if you’re going to air the rooms, try to do it early in the morning.

If you finally If you’re considering decorating your home with plants, try to do so with plants that won’t cause reactions, if you or some people at home are allergic. There are several plants that you should not have in your home; however, there are many other options to choose from. Perhaps also interesting for you

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