Which floral care method involves cleaning the lower part of the stem before storage?

The method that involves cleaning the lower part of the stem before storage is sanitation. This practice is essential in floral care as it helps to eliminate any bacteria or residue that could hinder water uptake and shorten the lifespan of the floral arrangement. By ensuring that the stem is clean before it is placed in water or stored, florists can significantly improve the longevity and freshness of the flowers.

Sanitation ensures that the cut ends of the stems are free from dirt or contaminants that can block water passage. It is a preventative measure that contributes to maintaining the overall health of the flowers, enabling them to remain vibrant for a more extended period. This process is foundational in floral handling and underscores the importance of cleanliness in maintaining floral quality before arrangements are made or sold.