Scientists have created rechargeable, multicolored, glow-in-the-dark succulent plants

In a groundbreaking development, researchers at South China Agricultural University have created the first multicolored, glow-in-the-dark succulent plants that can be recharged by sunlight, potentially paving the way for eco-friendly lighting solutions. The study, published in the journal Matter on August 27, 2025, involved injecting Echeveria “Mebina” succulents with micron-sized phosphor particles made of strontium aluminate. This method allows the plants to absorb light and emit it in various colors, including blue, green, and red, for up to two hours after a brief exposure to sunlight. Unlike previous approaches that used genetic engineering to achieve bioluminescence, which is limited to green hues, this material-based technique enables a wider spectrum of colors. The researchers developed a protective coating for the particles to prevent harm to the plant tissues, ensuring the method is safe and effective. The choice of succulents was strategic; their cellular structure with large intercellular spaces allows the particles to diffuse easily. Other plants like bok choy and golden pothos did not yield the same results due to their denser tissues. In a practical demonstration, the team built a wall of 56 injected succulents that produced enough light to illuminate text and objects up to 10 centimeters away in the dark. This highlights the potential for decorative or functional lighting in various settings. The glow intensity is comparable to a small night lamp at its peak but diminishes over time. However, the plants can be recharged multiple times by exposure to light sources, making them a renewable option. Despite the innovation, some experts express caution. A biochemist from the University of Cambridge noted that the energy output might not be sufficient for street lighting soon, and the researchers acknowledge that brightness needs improvement and safety assessments are ongoing. Looking forward, the team aims to enhance the luminescence and apply the technique to other plant species. If successful, this could lead to sustainable lighting solutions that reduce carbon footprints and integrate nature with technology. This advancement represents a significant step towards realizing visions of glowing ecosystems, similar to those in science fiction, and could transform how we think about light and sustainability.