Top Questions About Mop Head Hydrangea

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Questions About Mop Head Hydrangea

Asked by
Anonymous on
March 4, 2011

Q. Wilting Hydrangea

I recently received a beautiful mophead hydrangea with one big flower and several buds. In just a few days, they all wilted down. I have made sure the soil is moist. What can I do? Should I cut off the bloom and buds? It is an indoor plant. Could it be too warm inside for it?

Answered by
Nikki on
March 7, 2011
Certified Expert
A.

It may be overwatered. Check the soil and make sure that it is damp, but not soaked. It should have drainage. Root rot alsomay have set in if it was overwatered in the past. Here is more information on that:
https://www.gardeningknowhow.com/plant-problems/disease/treating-root-rot-gardening-tips-for-housplants.htm

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Asked by
Anonymous on
June 12, 2011

Q. Hydrangea Flower Size

I have an established mop head hydrangea which blooms every year. This year the flowers are smaller than usual. What should I do to ensure large flowers next year?

Answered by
Nikki on
June 13, 2011
Certified Expert
Asked by
Anonymous on
August 13, 2011

Q. Mophead Hydrangea Not Blooming

I have planted (5-years) several plants, which haven’t bloomed since the first year. I have been very careful not to prune or do anything to disturb the buds. I have removed dead, dry, branches before August. I have not covered my plants during the winter season and I live between Zones 5/6, in suburban Pittsburgh, Pa. The leaves on my plants are just beautiful, very healthy looking. These plants are all of the mophead type. Can you please share some advice with me?

Answered by
Nikki on
August 14, 2011
Certified Expert
A.

I would start with adding some fertilizer. Make sure it is a lower nitrogen fertilizer, as too much nitrogen can keep blossoms from occurring. I would also recommend taking steps to winterize your hydrangea (https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-winter-care-how-to-protect-hydrangeas-from-winter-cold-and-wind.htm).

If you have not already read this article, you will also find it helpful: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

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Asked by
Anonymous on
September 8, 2011

Q. Non-Blooming Hydrangeas

I have eight hydrangeas in a variety of locations in our yard. Seven are blue mopheads; the other one is endless summer. Three years ago they blossomed like crazy but have not bloomed since. Three have been in for more than 15 years in a semi-shady spot. The others have been in for 5 years in part sun-part shade. I tried protecting them from wind, etc. with a frame encircled with burlap. No luck. Originally, I pruned them in early fall. Then I tried waiting until late spring and cutting back only what was obviously dead wood. I see other yards where they are obviously neglected but thriving. What’s wrong here?

Answered by
Nikki on
September 9, 2011
Certified Expert
A.

When was the last time you had the soil tested? The soil may be lacking phosphorus, which would cause healthy growth but no blooms. Here are some articles that may help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

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Asked by
Anonymous on
November 2, 2011

Q. Overwintering Mophead Hydrangea

We live in Plymouth, Massachusetts. We have 3 mophead hydrangeas planted in the ground. This is our first winter. What do I need to do to get these ready for winter?

Answered by
Nikki on
November 3, 2011
Certified Expert
Asked by
mariac37 on
March 15, 2012

Q. Are there any types of mophead hydrangea that will take full sun?

I have planted mophead hydrangeas in an area that gets morning sun in the spring. However, in the summer months, the hotter summer sun, even in the morning, burns the leaves and flowers. I have moved this plant once from a very sunny location. Would it kill the plant to relocate it once more?

Answered by
Nikki on
March 16, 2012
Certified Expert
A.

While the further north one live, the more sun these plants can take, it sounds as of yours simply will not thrive in this location. I would go ahead and relocate it once more to a more suitable area, preferably one that has some afternoon shade.

Make sure to get up as much of the root system and surrounding doil as possible to reduce the chance of shock. This article should also help with avoiding transplant shock: https://www.gardeningknowhow.com/plant-problems/environmental/learn-how-to-avoid-and-repair-transplant-shock-in-plants.htm

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Asked by
dadauro on
August 30, 2012

Q. Hydrangea Pruning

I have heard too many ways to care for my hydrangeas. This is the first time in six years I had blooms on one of my 4 bushes. I have Mopheads. I feed yearly with hydrangea food. The “STICKS” are there all winter. Do these need to be cut off in the spring, fall or winter?

Do you leave these alone and not touch them until they fall out? I hear that you should cut those sticks that do not have leaves once the plant has started to bloom leaves. How can I get all my bushes to bloom?

Answered by
Nikki on
August 31, 2012
Certified Expert
A.

Generally, this shrub can be pruned in spring or fall, depending on your location and the type of winter weather you receive. Weak or diseased stems should be pruned to the ground while spent flowers and other stems should be cut to the last bud. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/prune-hydrangea-bushes-hydrangea-pruning-instructions.htm

If you have not already read this article, you will also find it helpful: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm

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