Marigolds are popular flowering plants known for their bright yellow, orange, and golden colors.
They contain natural compounds called terpenes, including compounds found in their aromatic oils.
Certain marigold varieties and extracts have demonstrated activity against particular insects.
Potential benefits:
- Adds beautiful color to outdoor spaces.
- Attracts some beneficial pollinators.
- Certain varieties may help discourage specific garden pests.
- Easy to grow in containers and flower beds.
How to grow it:
- Choose a sunny location.
- Prepare soil with good drainage.
- Plant seeds or young marigold plants.
- Water regularly while avoiding excessive moisture.
- Remove faded flowers to encourage continued blooming.
Where to place it: Garden borders, balconies, patios, and near vegetable plants.
7. Eucalyptus – A Strong-Scented Aromatic Plant
Eucalyptus is known for its distinctive, refreshing scent.
Its leaves contain aromatic compounds, particularly 1,8-cineole, also known as eucalyptol.
Certain eucalyptus-derived formulations are used in insect-repellent products.
However, the presence of a eucalyptus plant indoors does not provide reliable protection against household pests.
Potential benefits:
- Produces a strong aromatic fragrance.
- Contains compounds studied for insect-repellent applications.
- Provides attractive foliage.
- Can be grown outdoors in suitable climates and conditions.
How to grow it:
- Select an appropriate eucalyptus variety.
- Use a large container with good drainage.
- Provide plenty of sunlight.
- Water according to the plant’s needs.
- Prune carefully to control its growth.
Where to place it: Outdoor patios, gardens, and well-ventilated areas.
Important: Eucalyptus leaves and essential oils can be toxic if swallowed, particularly by pets and children. Avoid placing accessible leaves or concentrated oils where they could be ingested.
8. Catnip – An Interesting Plant With Insect-Repellent Compounds
Catnip is a member of the mint family and is especially famous for its effects on many cats.
However, it also contains a compound called nepetalactone, which has attracted scientific interest because of its insect-repellent properties.
Research has found that certain catnip extracts can repel mosquitoes and other insects under specific conditions.
Potential benefits:
- Contains naturally occurring aromatic compounds.
- Certain extracts demonstrate insect-repellent activity.
- Easy to grow in suitable outdoor conditions.
- Can attract cats and beneficial insects.
How to grow it:
- Choose a pot with drainage holes.
- Use ordinary well-draining potting soil.
- Plant seeds or a young catnip plant.
- Provide sunlight and moderate watering.
- Trim occasionally to encourage healthy growth.
Where to place it: Balconies, gardens, and sunny outdoor areas.
Be aware that catnip may attract cats, and concentrated extracts should not be assumed to be safe for every animal.
Do These Plants Really Keep Mice and Spiders Away?
This is an important question.
Although certain aromatic plants contain compounds that can repel specific insects under laboratory conditions, there is limited evidence that simply placing potted plants around your house will prevent mice, spiders, or all household insects from entering.
Mice are particularly difficult to discourage using plants alone.
They are attracted to accessible food, water, shelter, and places where they can build nests.
Spiders, meanwhile, often enter homes in search of shelter or insects to eat.
For this reason, combining aromatic plants with practical prevention methods is much more effective.
5 Additional Ways to Keep Your Home Free of Unwanted Pests
See more on the next page
