HYDRANGEA SCALE

Climbing hydrangea on arbor

I was horrified this past weekend to spot an extensive case of hydrangea scale on my climbing hydrangea (hydrangea ssp. petiolaris). It was an accidental discovery as my original mission was to prune it back. As covered in my book, Success with Hydrangeas, climbing hydrangeas flower on old wood so I knew it had to…

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HYDRANGEA PRUNING: BIG LEAF AND MOUNTAIN PLANTS

Big leaf hydrangea Let's Dance® Rhythmic Blue®

It’s finally time to prune your big leaf and mountain hydrangeas. This is in addition to what I wrote in January about hydrangea pruning. At that time I wrote that it was safe to go out and prune your woodland/smooth hydrangeas and your panicle hydrangeas. If you haven’t already done that, get going unless you live…

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TRANSPLANTING HYDRANGEAS 

Hydrangea Macrophylla in full bloom

I am getting lots of questions about transplanting hydrangeas. This post should help answer most of them. Transplanting hydrangeas follows the general rule for transplanting anything: do it in the season opposite of the one in which it performs, i.e., its “off season.” So if something blooms in the fall, transplant and divide it in…

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Hydrangea Care Late Winter

Landscape Hydrangeas

Are you as anxious to get outside as I am? Especially to engage in some late winter hydrangea care? Despite my itchy fingers, I know I am in the HYDRANGEA DANGER ZONE™ (HDZ). Doing the wrong thing at the wrong time can rob me of my flowers for the season if I’m not careful. So…

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HYDRANGEA PRUNING

A collage of hydrangeas from the Shamrock Collection in France

My apologies for being absent for so long. I have been working on a new hydrangea book about pruning to the exclusion of just about everything else. But I am seeing lots of questions in a variety of formats asking about hydrangea pruning. Clearly, it’s time to open the hydrangea pruning discussion for 2021.

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Time to Prepare Hydrangeas for Winter

It happened again – sudden freezing temps hit before my hydrangeas had a chance to harden off. Not a frost, but a solid freeze at 27 F that turned the birdbath turned into a skating rink. So sad to go outside and see what those temps did to my big leaf and mountain hydrangeas. Time…

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Report on 2020 Winter Impact on Hydrangeas

Hydrangea Macrophylla Blue Wave

It’s time to report on 2020 winter impact on my hydrangeas, a little later than I would have liked. I test both new and old introductions to the big leaf (macrophylla) and mountain (serrata) hydrangea families. Invariably, some plants produce few or no flowers. Then I examine why that happened. You can read previous reports…

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HYDRANGEA CARE in JULY: Make your plants thrive

Landscape Hydrangeas

You should be having a fabulous hydrangea year. The relatively mild winter and forgiving spring is giving gardeners in the Northeast a fantastic show. Just about every big leaf hydrangea (macrophylla) is flowering. If your plants aren’t performing, take a minute to read a post I just did  for the National Garden Bureau. In July it’s…

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