Answer: Usually dried out areas on dracaena leaves indicate overwatering. The problem may have begun when you rooted the plants in water, but it's just showing up now. As long as the new growth looks good, you should be OK. If the new growth develops these spots, then cut back on your watering. Once the plants are well rooted, they can often go for weeks without water, depending on the temperature, size of the pots, etc. Water them only when the soil is dry down 3 or 4 inches. If some of the lower leaves turn bright yellow, that usually indicates underwatering.
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