Why are flower stems cut on a slant before being placed in water?

In the context of floral decoration, cutting flower stems on a slant is a standard conditioning technique used to ensure proper hydration.

Because the ends of flower stems often seal over while being held in a florist shop or market, they must be recut by the purchaser to allow the plant to absorb water effectively. A clean, slanted cut also makes it easier to impale branches onto mechanical aids like a needlepoint holder.1

While a slanted cut is standard for most flowers, different materials require specific treatments:
* Woody stems: These are often split several inches with pruning shears or crushed with a mallet to improve water intake.1
* Milky stems: Stems from plants like poppies or poinsettias are sealed by placing the tips in boiling water or over a flame for a few seconds to prevent sap loss.1

To maintain the health of your arrangement, always remember to remove any foliage below the water line to prevent bacterial decay and unpleasant odors.1