16/03/2026
Plants don’t just produce essential oils for us humans to use and enjoy. They are functional tools evolved over millions of years that provide plants with significant adaptive advantages. Whilst not required for the plants basic survival these aromatic compounds serve several important functions: -
🌿Aiding reproduction
Flowering plants rely on insects and other pollinators to transfer pollen in order to reproduce. Essential oils help attract pollinators to nectar rich flowers, help insects distinguish between species and increase pollination efficiency.
🌿Defending against insects and other predators
Many essential oils are toxic, bitter, or pungent which helps deter insects, fungi, and grazing animals. In some cases, the plant can even increase essential oil production when under attack.
🌿Antimicrobial protection
Essential oils can help protect the plant against fungi, bacteria, and other microbes that can infect and damage plants and weaken growth. They can also help protect and heal damaged plant tissue and support overall plant health.
🌿Environmental protection
Essential oils can help plants be more resilient to heat and other environmental stressors. Not only can they protect the plant against moisture loss, but they can also provide a protective layer on leaf surfaces and help regulate plant temperature.
🌿Protecting against competition
Neighbouring plants compete for sunlight, water, and nutrients. Some plants produce essential oils to prevent or control the growth of competing plants, in order to protect their access to vital resources and increase their chance of survival.
As you can see essential oils are not simply nice fragrances that we can use in diffusers or candles – they are one of nature’s most sophisticated survival systems, constantly changing in their composition to help plants adapt to an ever-changing internal and external environment.
Head to our blog to learn more about essential oils and how they can benefit human health and wellbeing. https://tinyurl.com/yxprh23h