Why does your Aloe nobilis have yellow leaves? Diagnose the cause and fix it with our step-by-step guide.
Aloe nobilis is a succulent that stores water in its leaves; excessive soil moisture leads to anaerobic conditions, causing the roots to decay and preventing water uptake, which manifests as yellowing.
A lack of nitrogen prevents the plant from producing chlorophyll, leading to a general yellowing of older leaves as the plant redistributes nutrients to new growth.
While Aloe nobilis can tolerate some shade, prolonged lack of bright light disrupts photosynthesis and can cause the leaves to lose their vibrant green color and turn pale yellow.
Exposure to sudden cold drafts or temperatures below 50°F (10°C) can shock the plant's metabolism, causing the leaves to yellow as a stress response.
Your plant might also be experiencing one of these issues: