What is a common indicator of plant health?

Leaf color is indeed a common indicator of plant health. The coloration of leaves can reveal a lot about the plant's condition. For example, vibrant green leaves generally suggest that a plant is thriving, while yellowing leaves may indicate nutrient deficiencies, such as a lack of nitrogen or iron. Additionally, discoloration can signal the presence of diseases or pests that may be affecting the plant. A plant's response to environmental stresses, such as drought or too much sun, can also be observed through its leaf color.

While other factors like plant height, seed production, and root depth can provide additional insights into a plant's health or its surrounding environment, they tend to be less direct indicators compared to leaf color. Plant height can vary due to genetics or growth conditions, and seed production depends on many factors, including pollination and overall health of the plant. Root depth is primarily influenced by soil type, compaction, and water availability rather than sunlight exposure. Therefore, leaf color stands out as the most immediate and visual indicator of plant health.