Begonia crispy edges

Crisp margins can follow repeated drying or hot airflow. A begonia that crisps while the mix is wet may have damaged roots, so check moisture below the surface.

Dry root ball

Water evenly as the upper layer begins to dry, before the entire pot shrinks away from its sides. Thin-leaved rex begonias can lose leaf quality quickly during a dry spell.

Moist root ball

Move leaves away from hot glass or heating vents. If stems soften or leaves keep declining, inspect the roots and drainage. Measure room humidity before raising it; moist air is different from keeping leaves continually wet. Existing brown margins will remain.