There are a few common signs that indicate your plant may need more sunlight:
Leggy growth: If your plant starts to grow tall and stretched out with widely spaced leaves, it is a sign that it is reaching for more light.
Pale or faded leaves: If the leaves of your plant appear lighter in color than usual or have a washed-out appearance, it may be a sign of insufficient light.
Leaf drop: When a plant doesn't receive enough light, it may shed its lower leaves. If you notice a significant amount of leaf drop, it could be an indication of inadequate sunlight.
Slow or stunted growth: If your plant's growth seems slow or it is not producing new leaves or stems, it might be lacking the necessary light energy for proper growth.
Lack of flowering: Insufficient light can prevent flowering in plants that typically bloom. If your flowering plant fails to produce blooms, it could be due to insufficient sunlight.
Leaning towards light sources: If you notice that your plant is leaning or bending towards windows or light sources in an attempt to capture more light, it's a clear sign that it needs more sunlight.