Hello, i have three hydrangeas but i don’t know the type and whether, or not, they bloom on old or new wood. Can you help me identify them to know w...
Do i prune my hydrangeas now? #855573
Asked November 20, 2023, 10:58 AM EST
Hello, i have three hydrangeas but i don’t know the type and whether, or not, they bloom on old or new wood. Can you help me identify them to know when and how best to prune? Thank you
Anne Arundel CountyMaryland
These look like Bigleaf Hydrangeas or the Hydrangea macrophyllatype hydrangeas. It is difficult to say if they are the repeat blooming type or not. A lot of the new cultivars of the macrophylla species are reblooming, either way though you can wait for the spring at this point to prune off any old dead wood or to add more shape to the plants. You can wait until the first flush of leaves and blooms come and then prune no more than 1/3 of the plant. In time they should fill out more and you will have more blooms.
No, the macrophylla species is not native. Our 'native' Hydrangea consist of:
Hydrangea arborescens - truly native to Maryland and the many cultivars that are more showy - 'Incrediball' and 'Invincibell' are some and there are many more now. The Incrediball seem to be the only ones of the cultivars that are fragrant and attract pollinators.
This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.