Drainage Solutions for Pots Without Holes

Drainage holes are essential. If your metal window box lacks them, drill small holes with sharp bits to avoid cracking enamel. Alternatively, use a water meter to monitor moisture, water deeply but infrequently, and space plants 6" apart for root room. Water only when top 2" of soil is dry. Shallow watering encourages surface roots.

Regulating water in non-draining containers is tricky — drilling holes is the best fix.