Ask a Question forum→Forsythia issue

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Philadelphia, PA (Zone 7a)
dalien14
May 27, 2020 10:55 AM CST
I got 2 forsythia plants last spring. One has grown quite a bit and looks reasonably healthy, the other one is pretty stunted and portions look dry/dead. Both had flowers this year and continue to put out new leaves. The healthier of the 2 also has some areas that don't looks so good. I am pretty confident they are getting enough water.

Twig blight? Something else? Any ideas?




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[Last edited by dalien14 - May 27, 2020 11:05 AM (+)]
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Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Dog Lover Region: Texas Salvias Roses Hibiscus Plumerias
luis_pr
May 27, 2020 12:23 PM CST
I could not clearly tell if the ends show galls or if they brown parts are just dead leaves or dead flowers.
so I am putting a link below with related info. The blight usually occurs closer to the bottom of the plant so maybe it also had some parts zapped by late frosts/freezes around May 9th (winter damage).

https://extension.psu.edu/fors...
Philadelphia, PA (Zone 7a)
dalien14
May 27, 2020 12:49 PM CST
Just went and took another look... I do not see anything that looks like galls, I think all the "lumpy" areas are dead buds/flowers. I also split a couple of the red branches and didn't see anything that looks like a blight (just a little light white fuzz). Frost damage seems possible.

I do still wonder why one of them is so much happier than the other (4' apart). Maybe slightly different soil conditions...?

seems like next step would be to prune off all the dry dead areas and see what happens now that frost danger has passed. Any other ideas out there?
Name: Lyn
Weaverville, California (Zone 8a)
Garden Ideas: Level 1 Garden Sages Celebrating Gardening: 2015
Image
RoseBlush1
May 27, 2020 1:31 PM CST
Forsythias bloom on "old wood", so you prune them after they have finished flowering. The plant will put up new growth after it has been pruned, which it will consider to be "old" growth next season.

Go ahead and prune them ... Smiling
I'd rather weed than dust ... the weeds stay gone longer.
Name: Luis
Hurst, TX, U.S.A. (Zone 8a)
Dog Lover Region: Texas Salvias Roses Hibiscus Plumerias
luis_pr
May 27, 2020 4:16 PM CST
It is surprisingly common to see frost hit one plant and skip the one beside it. It has happened to my hydrangeas when they leaf out too early.

Hope the forsythia looks better by the Fall. Stop all fertilizers by Aug 1st.

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