What is an effective way to prevent bacterial growth in a floral arrangement?

Removing foliage below the water level in a floral arrangement is an effective way to prevent bacterial growth. When leaves or other plant materials are submerged in water, they can decay and contribute organic matter that promotes the growth of bacteria. By ensuring that no foliage is below the water line, the risks of decay are minimized, which helps maintain a cleaner environment for the cut flowers. This practice not only aids in extending the life of the arrangement but also maintains the overall freshness and appearance of the flowers.

Fresh flowers are important for quality, but simply using fresh ones doesn't directly prevent bacterial growth as the bacteria can still proliferate due to other factors. Keeping the arrangement in sunlight may cause the water to heat up and encourage bacterial growth rather than prevent it. Adding sugar to the water can provide nutrients that might help flowers bloom but can also inadvertently feed bacteria if not managed properly. Thus, maintaining cleanliness by removing submerged foliage is a straightforward and effective strategy for preventing bacterial issues in floral arrangements.