How to Rehydrate a Hydrangea Flower

Big, round hydrangea flower heads are composed of a mass of small flowers, each with its own stem that connects to the main feeding stem. With so many flowers to support, hydrangeas require a large amount of water to keep them looking fresh. By rehydrating hydrangea flower heads that have become wilted and droopy, you can extend their vase life. For the best results, rehydrate as soon as you cut the hydrangea from your garden or when you receive your hydrangeas from a florist. After your hydrangea has been in the vase for several days, repeat the process to extend the flower's vase life.

Sharp knife
Container
Warm water
Hand sprayer

Instructions

- 1
  Fill a container with 3 to 4 inches of warm water. The water needs to be between 100 and 110 degrees Fahrenheit.
- 2
  Use a sharp knife to recut the bottom of the stem. Cut off 1-1/2 to 2 inches of stem at a 45-degree angle. This will reopen the stem and allow maximum water uptake.
- 3
  Place the recut stems in the container of warm water. Warm water is taken up by a flower stem more quickly than cool or cold water, thus rehydrating the hydrangea more quickly.
- 4
  Set the container with the warm water and hydrangeas in a cool spot out of direct sunlight for one to two hours. After that time, your hydrangea flower heads will be rehydrated and looking fresh again.
- 5
  Spray water, using a hand-sprayer, on the hydrangea flowers every other day while they are in your arrangement. The hydrangea flowers will absorb the moisture just as they would absorb dew in the garden.

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