Find the pots that miss the rain
Look under roof overhangs, dense evergreen leaves and balcony shelters. These places may keep a container surprisingly dry while the surrounding paving is wet. Mark the pots that need checking independently of rainfall. Large foliage can shed water beyond the rim instead of directing it into the mix. Compare the centre of the root ball with the exposed surface near the edge. A wet rim and a dry centre can exist in the same container.
Inspect on a suitable day
Choose a mild period when the mix is not frozen. Feel below the surface or lift a manageable pot to judge its weight. Avoid interpreting a rigid, frozen root ball as ordinary dry compost. Note how the plant normally spends winter: a dormant deciduous plant and a leafy evergreen have different demands. An inspection reminder is helpful, but the inspection should decide whether you water. Do not apply a summer quantity simply because that is what the watering can usually holds.
Keep the exit route open
Check that drainage holes are not pressed tightly against a flat surface or blocked by debris. Use stable supports where suitable, ensuring the pot cannot rock or fall. Empty water that collects in a cover container. Insulating a pot must not seal its drainage route. If a container repeatedly stays saturated, investigate the mix, exposure and container design; adding another layer of decorative mulch does not address the reason water cannot escape from the root zone.
Notice the warm spells too
A dry, breezy week can change a sheltered pot quickly even in the middle of winter. Recheck after unusually mild weather rather than assuming the calendar guarantees dormancy. When watering is needed, apply it to the mix and allow drainage before returning the pot to its usual arrangement. Keep a brief winter note for containers that behave differently from the rest. Next season, those records can guide a better position or a more manageable choice of container.
A little further reading
Match these general notes to your plant variety, climate and local conditions.
