Adding a Hydrangea Tree to My Rooftop Garden Which Hydrangeas Survived Winter in Pots

The speaker demonstrates how to plant a \"Little Lime\" panicle hydrangea tree in a container on a Chicago rooftop deck. The video emphasizes selecting cold-hardy varieties for container gardening in Zone 6A, the benefits of self-watering double-walled pots for root protection, and a comparison of which hydrangea types survived the winter.