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In recent years, succulents have surged in popularity, becoming the quintessential houseplants for millennials. These drought‑tolerant plants, native to arid regions of Africa and the Americas, require minimal water and maintenance, making them ideal for budget‑conscious plant enthusiasts.

Building on this trend, a team from South China Agricultural University published a groundbreaking study in August 2025 in the journal Matter, demonstrating how they made the popular succulent Echeveria “Mebina” glow in the dark.

Rather than editing the plant’s genome, the researchers injected the leaves with nanoparticles of strontium aluminate (SrAl2O4), a phosphor commonly used in glow‑in‑the‑dark toys. When exposed to light, SrAl2O4 absorbs photons and then slowly releases them as a low‑intensity glow. The effect requires a co‑dopant, typically europium, to produce a prolonged afterglow that can last several hours.

The team experimented with various species, discovering that the intercellular spaces of Echeveria “Mebina” provide an ideal matrix for distributing and retaining the phosphor particles. As a result, they created plants that emit green, orange, red, blue, and even rainbow hues. After just a few minutes under direct sunlight, the plants can be charged and then glow for up to two hours, with the ability to recharge quickly once the glow fades.

Could plants become our new lightbulbs?

While the concept of living, light‑emitting plants is alluring, practical limitations persist. The plants still depend on direct sunlight for charging, and their afterglow is relatively weak compared to electric bulbs. Moreover, the long‑term effects of introducing inorganic phosphor nanoparticles into plant tissues remain uncertain.

In 2020, researchers genetically engineered tobacco plants to express bioluminescent genes from mushrooms, producing a green glow. However, those attempts required complex genome editing and yielded only a single color. The nanoparticle method bypasses genetic manipulation while offering multiple colors, though the light output remains dimmer than conventional illumination.

Nonetheless, these glowing succulents open a fascinating avenue for research at the intersection of horticulture, nanotechnology, and lighting. As scientists refine the technique and assess safety, we may one day see bioluminescent plants complementing or even replacing traditional lighting in niche settings.