What happened to the green coloration, why is it n...

The green color is chlorophyll, and when it fades it means the plant either can’t produce it or is breaking it down. The most common reasons are: Nitrogen deficiency – chlorophyll needs nitrogen. This usually starts on older leaves. Nutrient lockout – nutrients are present but the roots can’t absorb them (often pH or salt related). Root stress – overwatering, poor oxygen, or damaged roots reduce uptake. Natural fade – late in flower the plant intentionally pulls nitrogen from leaves. Light stress – too much intensity can bleach chlorophyll. To narrow it down, look at: Which leaves are affected first (old vs new) Growth stage (veg vs late flower) Whether the yellowing is even or blotchy Chlorophyll loss is a symptom, not the problem itself. Fixing the underlying cause usually stops it from spreading, even though the affected leaf won’t turn green again 🌱

"I didn’t run routes—I created legends."

Chlorophyll degradation? Nitrogen deficiency?

The green coloration, caused by the pigment chlorophyll, is no longer in the leaf because it has been broken down as the leaf ages or in preparation for winter []. The disappearance of green coloration (de-greening) is due to several factors: Chlorophyll Breakdown: As autumn approaches, trees begin the process of senescence (aging). This process involves breaking down chlorophyll molecules into simpler compounds. This allows the tree to recover and store valuable nutrients, such as nitrogen and magnesium, from the leaves before they fall off . Changing Pigments: The green of the chlorophyll usually masks other pigments already present in the leaf, such as yellow and orange carotenoids. Once the green fades, these other colors become visible. New Pigment Production: In some trees, new red or purple pigments (anthocyanins) are produced in the autumn, leading to vibrant fall foliage colors

Combination of reasons. Genetically expressed and brought out through a combo of gentical & environment. Nitrogen deficiency, cold temperatures and UV protection. Helps plants mitigate damage and enhance their tolerance to various abiotic stressors.

It’s called the senescence

The plants are no longer producing new chlorophyll.

Like most plants it's there autumn colours. I find most mine do that.