I'm new...could use some help -- dividing hydrangeas?

[TElam]

I'm new here and pretty new to gardening all together so forgive me if I ask silly questions....

My mother has beautiful hydrangeas this year and they're getting pretty big. My question is...can they be split and transplanted and if so when should this be done?

I would really appreciate any advice at all.
Thanks!
Tabitha

[rainbowgardener]

You can divide hydrangeas, but wait until fall when it's all done blooming and getting ready to go dormant or do it in the early spring before it starts growing again. Water very thoroughly, dig it up and see if you can pull the roots apart. If it's a big old one, probably not, so divide the root ball with a sharp spade. Replant the pieces and water thoroughly

[TElam]

Thank you very much! Your advice is very helpful!

[luis_pr]

You may also want to consider propagating cuttings or propagating by air layering. These methods are less stressful when used on woody-based plants. If the plant has some sentimental value, consider these before trying to divide.

When diving or transplanting, choose the time carefully. Diving when the plant is dormant may be more successful and the temperatures will have moderated as well. The summer is nasty time to be out and about doing this. Plus the hydrangeas will be asking for water daily due to transplant shock. The Fall (or when your plants go dormant) is a much better time. I would propagate & divide in half only. That way you can have your cake and eat it too. Do not fertilize those plants until next year.