Something as common and essential in modern life can be of great help to living beings on this planet. It’s about urban or artificial light, a tool so essential that it can extend the growing season of plants in urban environments by up to three weeks, compared to rural areas.
A study revealed that rapid urbanization is generating warmer and brighter cities, due to the heat absorbed and radiated by buildings and concrete. These areas are characterized by higher atmospheric temperatures during day and night, due to a 10% increase in the amount of artificial light at night over the last ten years.
This increase in light and temperature largely regulates the growing seasons of plants. An example of this is what happens with city trees sprouting and blooming earlier in spring and changing color later in autumn.
On the other hand, researchers suggest that the effect of artificial light during the growing season could be affected by the transition from high-pressure sodium lamps to LED lighting, to which plants could respond better.
In addition to urban light: how to care for plants in the city
In urban environments, plants face particular challenges such as pollution, excessive heat, and limited space. To ensure proper development, it is essential to place them in locations where they receive the sunlight they need according to their species, avoiding direct sun exposure during critical hours if they cannot tolerate it.
Watering is another key aspect: pots tend to dry out faster than natural soil, so constant monitoring of moisture and an efficient drainage system is recommended to avoid waterlogging. Additionally, urban conditions often require periodic fertilization, as the nutrients available in the substrate are quickly depleted.
It is also important to protect them from pests and diseases, which can easily spread on balconies, terraces, and community gardens. Regular pruning and the use of natural repellents can help keep them healthy. With these basic care tips, urban plants not only survive but also beautify cities and improve air quality.
