What pH range is best for maximizing hydration in flowers?

The ideal pH range for maximizing hydration in flowers is 6.5 to 7.5. This range is considered neutral to slightly acidic, which is optimal for most cut flowers. A pH level within this range helps to maintain the integrity of the plant's cellular structure and promotes better uptake of water and nutrients through the stem.

When the pH is within the specified range, it assists in preventing microbial growth in the water, which can obstruct the vascular system of the flowers and reduce their ability to hydrate effectively. A more acidic environment, such as a pH below 6.0, can sometimes be ideal for specific flower types, but generally, maintaining a neutral pH supports a broader variety of flowers.

In contrast, excessively low pH (1.0 - 3.0) can be harmful, as it may cause damage to the flower tissues. High alkaline pH levels (11.0 - 14.0 or 8.2 - 9.5) can also create an unfavorable environment, affecting nutrient availability and leading to poor hydration and overall health of the flowers. Thus, the range of 6.5 to 7.5 is the most beneficial for hydration in floral arrangements.