Dracaena yellow leaves

One oldest lower leaf fading while the top remains firm can be normal. Repeated yellowing or pale, weak new leaves calls for a check of the pot and temperature.

Moisture below the surface matters

Remove trapped runoff and let the upper portion of mix dry before watering again. Water the whole root ball when it is ready. Move the plant away from cold drafts and into brighter indirect light if it has been sitting in a dim corner.

Inspect roots if yellowing persists with wilt or a soft cane. Tip burn alone has a different checklist, including water quality; it does not establish root rot.