Will putting potted hydrangeas in a unheated garage be effective so they will come new next year? One "bobo", one lace cap and two that bloom pink flowers and have dark green leaves,(not sure which variety it is).
Potted Hydrangeas for Winter
Certified GKH Gardening Expert
It really depends on what your zone and what the hardiness of the plants are. Putting a plant in an unheated garage is the same as keeping it one zone above your own zone. So if you live in Zone 5 and you store the hydrangea in the garage, it would be like leaving it outside in Zone 6. The hydrangea will survive fine if it is able to survive Zone 6 or higher.