The document discusses conditioning roses and other cut flowers. Conditioning involves treating cut flowers with a solution to prevent bacterial growth. It should be done every 3-4 days to keep flowers hydrated and prolong their longevity, which for roses is typically 3-10 days. Conditioning solutions contain nutrients, acids to lower the water's pH, and antibacterial agents to kill bacteria and prevent stems from clogging. Common household items that can be used instead of commercial floral preservatives include clear sodas and mouthwash.