It's the warm summer days that invite wasps to enter the outdoor space. They linger around furniture, swarm around sugary drinks as they turn family time into an exciting game of dodging and swatting. People who are allergic to stings or are exhausted from the wasps circling all over pets and children. Finding a less invasive method to deter them could be more attractive than dealing with sprays or nests in the future.
One plant that has slowly attracted the attention of gardening enthusiasts is wormwood. It's called Artemisia absinthium. It has silvery leaves and a sharp, herbal smell. The plant has, for a long time, been considered to be a natural control for pests. Though it's not an absolute shield against wasps, many gardeners believe that it makes outdoor areas less appealing to these pests.
One reason could be due to the strong-smelling oils. A study,
Screening of Repellents against Vespid Wasps, revealed that various essential oils extracted from aromatic plants, which included species of the Artemisia family, have shown a distinct repellent against wasps with vespids during tests in the laboratory. Researchers observed that powerful plant volatiles could interfere with the insect's behaviour and movements.
The lingering aroma of the herb is precisely the reason why wormwood is so appealing to many homeowners. The smell is often described as medicinal, earthy and a bit bitter. Some people may enjoy it in moderation; insects appear to be less so.
The reason gardeners are turning towards WormwoodContrary to flowering plants with high maintenance requirements that require continuous maintenance and irrigation, it is actually quite easy to establish. It is a great choice for dry climates, it can stand in poor soil and doesn't require much time once it is established. In the case of busy families, this easy-to-maintain quality is its appeal.
It thrives best in the sun. This makes it the perfect choice for balconies, patios, and sunny areas close to outdoor seating areas. Many gardeners put it next to pathways or porches, which are where wasps typically congregate during the warmer times. Silvery leaves also blend perfectly with modern gardens, which gives it more appeal for people who live there than other beneficial pest control plants.
However, it is recommended that you be careful about where you plant your wormwood. Since wasps are also pollinators, placing wormwood too near fruiting crops or patches of vegetables could hinder beneficial insect activity in the vicinity of those plants. If you depend on pollinators to help you grow tomatoes, cucumbers, berries or other edible plants, you should put wormwood far from edible garden beds.
Another important aspect to consider. Wormwood is a source of compounds which can cause harm if eaten in large quantities. It's not only for insects, but also for pets and human beings. Dogs and families with young children might want to plant it in elevated containers or behind a barrier to stop accidental chewing.

Easy to grow and maintain, wormwood thrives in sunny spots and offers a less invasive alternative to chemical sprays for enjoying outdoor spaces. Image Credit: Wikimedia Commons
A simple routine for cleaningThe reason why wormwood is well-known in the garden of homes is that it requires the least amount of money to return. It prefers soil that is well-drained and will perform better when the soil isn't excessively fertile. Over-dosing on fertiliser can render it floppy and weak instead of healthy and compact.
When it is mature, wormwood can handle dry periods well. However, periodic watering in extreme temperatures can help keep the leaves in good condition and smelling fresh because the leaves have the most scent and are the most important factor to consider for those who are making use of the plant as a part of a natural strategy to deter wasps.
Pruning is also a simple process. It is common for gardeners to trim their plants back so that they are lush and shady instead of being tall and leggy. Deadheading the flowers prior to setting seeds may also aid in limiting spread, particularly in areas that have a lot of wormwood.
In certain regions of the United States, particularly northern and western areas, Wormwood can be considered to be invading because it is easily spread. Planting it in containers is generally the best option for these regions. Containers make it simpler to bring plants closer to patios during the peak wasp season.
Although no plant is able to rid a garden of wasps, wormwood provides something that people love about it as a plant that is natural and is a perfect fit for everyday life outdoors. Instead of completely relying on chemical sprays, a few gardeners are embracing strongly fragranced plants to provide an approach that is more gentle to keep their outdoor areas more inviting throughout the heat of summer.