Diagnosis
Diagnose: Dracaena Yellow Leaves
Use these observations to decide what to check next.
Compare the leaf pattern with the pot and recent changes
Stable cultivar markings and gradual loss of an older lower leaf can be normal. New yellowing at several levels, wilting, enlarging spots, or soft cane tissue calls for closer inspection.
Start with root-ball moisture, drainage, both leaf surfaces, and recent sun or cold exposure. Unpotting becomes useful when decline and root-zone evidence justify it, rather than whenever a leaf changes color.