Aglaonema brown tips

Stable points on old leaves can be left alone. New tip burn with otherwise firm growth suggests repeated drying, salt buildup, or hot airflow; yellowing and droop add a reason to check roots.

Correct the pattern you find

Water the whole root ball when the upper mix dries and discard runoff. Move leaves away from heat vents and cold glass. If fertilizer deposits crust the mix, reduce feeding and flush at a normal watering only when roots are healthy and drainage is open.

Trim dry points for appearance, leaving a narrow brown margin. Aglaonema replaces leaves slowly, so retain the green parts rather than removing every imperfect leaf.