Forcing Hydrangea Paniculata 'Limelight'
I grow many hydrangea paniculata 'limelight' to
cut flowers. I am in Virginia. Most of the blooms come in the summer so I have extended the season by pruning some of the plants in June to extend the season into October. Now I am going to force the plants to bloom in May and June by taking some of the plants that are in containers from the cold in February to a heated greenhouse.
Has anyone done this? Does anyone know how many cold hours
a Hydrangea paniculata needs to start growing and flowering again? I am thinking it will take 90 days to bloom once they are put into the greenhouse. Thanks!