From my perspective as a Schefflera plant, I must clarify my fundamental needs. In my natural habitat, I am an understory tree, which means I evolved to grow beneath the canopy of larger trees. This has granted me a degree of adaptability to lower light conditions compared to many sun-loving species. However, "tolerate" is the key word here. I can survive in low light, but I will not truly thrive. My ideal condition is bright, indirect light, which fuels my photosynthetic processes efficiently, allowing me to produce the energy needed for robust growth, large, healthy leaves, and a strong structure.
When placed in a low-light area, my internal systems must make significant adjustments. With reduced photon availability, my rate of photosynthesis slows dramatically. This means I produce less energy (in the form of sugars). To conserve this limited energy, my growth will become very slow or even cease entirely. You may notice my new leaves are smaller and farther apart on the stem, a condition known as etiolation, as I stretch weakly toward any available light source. Furthermore, the vibrant green color of my leaves may fade or become less intense as I produce fewer chlorophyll pigments. My overall metabolism slows, meaning I require less water and far less fertilizer, as I cannot process nutrients quickly.
It is crucial to understand what "low light" means for me. It is not near-total darkness. A dark corner far from any window is beyond my tolerance and will lead to my decline. A low-light spot for me would be several feet away from a north-facing window or a room with a large, bright window that is partially obstructed. I can still perceive the sky and absorb ambient light, even if it is not direct. A good test is if you can easily read a book in that spot during the day without turning on a light; that is typically the minimum level of light I can endure for survival.
To cope with less-than-ideal lighting, I employ several survival strategies. My leaf structure is designed to capture scattered light, and I will slowly orient my leaves to maximize the surface area exposed to the available light source. I will also prioritize energy allocation, diverting all resources to maintaining existing leaves rather than producing new growth. I become exceptionally efficient with my water usage to prevent root rot in the cool, damp soil that results from slow evaporation. Essentially, I enter a state of dormancy or very slow motion, waiting for conditions to improve.
If you must place me in a lower light area, there are ways you can assist my survival. First, be extremely cautious with watering. My soil will take much longer to dry out, so you must check the moisture deep in the pot before watering to avoid suffocating my roots. Do not fertilize me at all during this time, as the salts can build up in the stagnant soil and chemically burn my roots. Most importantly, please give me a "vacation" in a brighter spot for a few weeks every couple of months if possible. This allows me to photosynthesize properly, recharge my energy reserves, and continue sustaining myself when returned to the lower light location.