Top Questions About Summersweet Shrubs

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Questions About Summersweet Shrubs

Asked by
Anonymous on
September 26, 2011

Q. Clethra Alnifolia Germination

I’m trying to get a pkg. of summersweet clethra to germinate with no success. I have tried 3 inch peat pots and now getting ready to use a plant bed. What is the secret to getting it to sprout?

Answered by
Nikki on
September 27, 2011
Certified Expert
A.

You would probably have better luck with taking softwood cuttings from the plant instead. This article will help: https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-root-cuttings-from-various-shrubs-bushes-and-trees.htm

Here is more information on growing summersweet: https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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Asked by
karynhood on
September 28, 2012

Q. When Do I Plant Clethra Alnifolia Outside?

We just purchased a clethra shrub and are wondering if it should be put in the ground right away. It is currently late September and we live in Maine, zone 5b. Would it be better to keep it indoors until spring? The shrub is 4 feet tall and 21 inches wide.

Answered by
Nikki on
September 29, 2012
Certified Expert
A.

With proper care and protection, fall planting is fine. However, as long as it;s in a container and kept in an unheated area, like a garage or basement, you may be able to overwinter the shrub as it will need to enter dormancy. This article should also help with its care: https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

For additional information on winter protection for plants, these articles should help: https://www.gardeningknowhow.com/plant-problems/environmental/protect-plants-in-freeze.htm
https://www.gardeningknowhow.com/plant-problems/environmental/protecting-plants-winter.htm

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Asked by
pmaclean7 on
July 12, 2015
Zone 4 (Southern MN)

Q. summersweet shrub never blooms

My summersweet shrub is very healthy, but never blooms. Any suggestions? The summersweet has been in my garden for at least 6 years and has never bloomed. It gets dappled shade most of the day with maybe a little direct sun in late afternoon.

Answered by
Downtoearthdigs on
July 13, 2015
Certified Expert
A.

You may want to have a soil test preformed as it does like the soil to be slightly acidic.
Here is a link that should help you pinpoint the issue.

https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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Asked by
Anonymous on
September 3, 2015

Q. Hummingbird Summersweet

Seems like I didn’t water my Clethra alnifolia quite enough during this terribly dry summer. It looks quite burnt. I’ve started to water it every other day now and I’m wondering about the chances of it coming back, if not this year, then next. Should I should fertilize at this point or wait for the spring? Should I snip the dead flowers off or leave them? Or should I just look into buying another plant and take better care next time? Thank you.

Answered by
Downtoearthdigs on
September 4, 2015
Certified Expert
A.

As long as the plant is not already too far gone and if it still has green, pliable branches/stems, then it should be okay, but you must remember to continue with its overall care. I would not fertilize while the plant is under stress, as this could actually do more harm than good. You can, however, cut back any dead growth and simply continue caring for it as usual. If the plant survives winter, you should begin to see new growth come spring, if not sooner.

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Asked by
Marilyn J Dore on
April 28, 2017
Greenwich 12834

Q. summersweet, hummingbird

We have 3 summersweet, hummingbird, plants that were planted in the fall of 2016, along with many other perenials. I am not sure if they have survived the winter. There seems to be some sprouting at the base of the plants, but the branches seem dull colored and brittle. So, how do I tell if they survived?

Answered by
Downtoearthdigs on
May 2, 2017
Certified Expert
A.

This shrub is zoned 3-9.
Check the branches, do the bend or snap off?
Dead branches will snap and break.
After danger of frost has passed, prune the dead parts of the shrub.
If your seeing new growth, the roots most likely survived and your shrub should recover.
Next winter you can add some mulch protection to the plant.
Remember, most reputable garden centers will guarantee a new shrub or tree for one year, so check your receipt if your shrub does not recover.

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Asked by
Carole Newell on
May 18, 2017
30187
Answered by
Downtoearthdigs on
May 19, 2017
Certified Expert
A.

Are you referencing Summersweet shrubs?
This is an article with more information.
https://www.gardeningknowhow.com/ornamental/shrubs/summersweet/summersweet-plant.htm

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Asked by
homerduff109 on
May 5, 2018
honeoye falls ny

Q. sweet shrub

pruned last fall and not showing signs of buds

Answered by
MichiganDot on
May 5, 2018
A.

I'll assume you are talking of flower buds. Depending on where you live, spring is late this year so many plants are 1-2 weeks behind schedule. Fall is not the right time to prune shrubs. For one thing, spring blooming shrubs have already set flower buds; pruning removes them. Pruning is a stimulus to plants to grow right when they should be starting the process of going dormant for winter. New growth after the pruning will not survive cold winters. The best time to prune spring-blooming shrubs is right after they bloom. For summer blooming shrubs, early spring, just as growth is beginning is preferred since most of them bloom on new branches. Hydrangea varieties have differing pruning needs and must be researched by species.

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