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How to Keep a Hydrangea Alive Inside Until Spring

Hydrangeas are easy to grow in containers, but they will not survive a winter in a pot. The potting soil does not provide enough insulation to keep the roots warm. Bringing the pot inside into a sheltered area will keep the roots warm enough to keep the plant alive. Once inside, the dormant hydrangea will require no maintenance aside from keeping the temperatures cool. You can then take the hydrangea back outside for spring.

Things You'll Need

  • Water
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Instructions

    • 1

      Leave the hydrangeas outdoors until the ground becomes frozen. This gives the plants time to become dormant.

    • 2

      Bring the hydrangea into an unheated area of the house, such as the garage. This will provide enough shelter to keep the hydrangea from freezing, but will not be warm enough to make the plant come out of dormancy early, which can kill it.

    • 3

      Water the hydrangea thoroughly once you have it set in the unheated shelter. Water should come out of the bottom drainage holes. Further watering is not necessary during the winter.

    • 4

      Bring the hydrangea back outside once the last frost passes. Water it again with the same amount of water.