Roots will freeze: If the ice cubes are appropriately sized and not in direct contact with roots or stem, this is not a concern.
Ice is too cold: By the time the ice melts, it warms to near room temperature, making it safe for plants.
Precautions
Avoid contact between ice cubes and the stem or roots.
Use well-draining pots to prevent water accumulation and root rot.
Some cold-sensitive plants may not benefit from this method, so research your plant’s needs.
Best Practices by Plant Type
Tropical plants: Use small cubes to maintain steady moisture without excessive cold.
Succulents and cacti: Occasionally use an ice cube to prevent overwatering.
Orchids: Gradual absorption helps them thrive, but fewer cubes are recommended.
