Ask a Question forum→Uh-Oh Mother In-Law's Garden Viburnum Needs Some Help

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Name: Dylan Simel
Brooklyn
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dylansimel
Aug 22, 2020 3:36 PM CST
Hey everyone,

My mother in-law is an avid gardener with a lovely garden that grows like crazy year round. She's having a little difficulties with this viburnum below and we wanted to know if there was anything that we could do to help it out!

Some notes for more context.
- The viburnum gets 3/4 day of sun. The house faces west.
- We've had for over a year and the same thing happened at the end of last summer. It did come back in the spring this year though.
- It gets hit with the sprinkler system almost every day
- At the base of the plant (last photo) there is new growth that looks pretty good!

Thumb of 2020-08-22/dylansimel/ef0561

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Any suggestions would be super helpful! Thank you so much!

Also any plant IDs would be great!

Dylan
Name: John
Scott County, KY (Zone 5b)
You can't have too many viburnums..
Region: United States of America Region: Kentucky Farmer Cat Lover Birds Bee Lover
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ViburnumValley
Aug 22, 2020 6:12 PM CST
That is Viburnum plicatum f. tomentosum 'Summer Snowflake', a compact growing repeat blooming Doublefile Viburnum.

This species is highly sensitive to droughty conditions, and will dog-ear droop on hot days - even when irrigated. If adequate moisture is lacking in the root zone during any length of hot weather, you will get those "burned" leaf edges and leaf tips.

You could collect samples of damaged plant parts and submit them to your county's Cooperative Extension Service for diagnostics (plant pathology application form) to see if there is any possible disease evident, but I think that is a cultural problem, not a pathogenic problem.

Sprinkler systems that run every day often don't supply water in appropriate amounts, nor when plants particularly need it. They DO often contribute to fungal pathogen problems, by keeping foliage regularly wet. I'd invest in an inexpensive length of drip hose, to "sweat" water to certain plants that need a good soaking. Turn on when needed.

I grow this plant, and many of its full size relatives. They all can show this behavior during droughty periods.
John
Name: Dylan Simel
Brooklyn
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dylansimel
Aug 25, 2020 8:57 AM CST
Amazing! Thank you so much for your help! Very very useful!
Name: John
Scott County, KY (Zone 5b)
You can't have too many viburnums..
Region: United States of America Region: Kentucky Farmer Cat Lover Birds Bee Lover
Butterflies Enjoys or suffers hot summers Enjoys or suffers cold winters Dog Lover Hummingbirder Lover of wildlife (Raccoon badge)
Image
ViburnumValley
Aug 26, 2020 8:28 PM CST
You are welcome.
John

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