Indoors
Planter covers without holes sit outside a normal plastic pot. Make sure water does not stand in the base.
Outdoors
Choose ASA or another UV-resistant material. PLA turns brittle over a season of sun and frost.
Watering and drainage
Watering spikes and pot feet are small parts with big effect: better airflow under the pot and less staining on the terrace.
Markers
Plant markers with relief text outlast written labels that fade.