When a plant grows long stems with big gaps between the leaves and leans toward the window, it is stretching for light. This is called being leggy, or etiolated.
What is happening
Plants grow toward light. In a dim spot they put their energy into longer stems to reach it, and make small, pale leaves. The fix is more light, not more water or food.
What to do
- Move the plant to the brightest spot you have that is not in harsh midday sun. A spot near an east-facing window or a bright window with a thin curtain works for many plants.
- Turn the pot a quarter turn every week or two so all sides get light and it stops leaning.
- For plants that branch well (such as pothos, coleus or herbs), trim the long stems above a leaf. This encourages fuller growth. Stems you cut off can often be rooted in water to make new plants.
- Don't expect stretched stems to shrink back. New growth in better light will be compact.
- If your home is dark, a small grow light near the plant for several hours a day can help.
When to scan
If the plant is stretching and also has yellow leaves or spots, take a daylight photo and scan it. The answer will also tell you which light your plant prefers, so you can place it well.