peony leaves look infected/diseased

jacqui_ontario(z5 Ont)September 5, 2009

Several of my peony bushes' leaves are discolored with brown patches that start small and spread to the entire leaf. Dryness is not the problem as they have had ample rainfall.

My inclination is to remove the stalks from the garden. These brown dry looking leaves can't be nourishing the plant. What do you think?

Thanks

Thank you for reporting this comment. Undo
duluthinbloomz4

You can always clean dead or decaying foliage off peonies, especially now when we're at the beginning of the end of the growing season. Don't leave the plant debris lying around to over-winter, dispose of it in your trash.

How are your peonies sited? They tolerate light shade but prefer full sun in rich, well drained soil with no competition from nearby shrubs and trees that might have aggressive root systems. Good air circulation around peonies helps keep them healthy too.

    Bookmark   September 8, 2009 at 10:32AM
Thank you for reporting this comment. Undo
jacqui_ontario(z5 Ont)

Thanks Duluthinbloom,
I'll cut back and remove the foliage from the garden.

I have 6 single peonies planted in my main perennial bed and this is the first summer in 25 years that this fungus? has affected 2 of the plants. Both are in full sun. We've had an very wet summer and this bed is crowded with other perennials.
Thanks

    Bookmark   September 9, 2009 at 12:55PM
Thank you for reporting this comment. Undo
duluthinbloomz4

You're welcome.

Cool, wet weather in the spring, followed by lots of summer rain or continuous days of drizzle can cause some peony problems. Can't do much about rainfall, but if you water during any dry spells, best not to wet the leaves. Maybe moving some of the crowding perennials away a little will help the air circulation - that, along with cutting the peonies down in the fall and disposing of all the debris might be about all you can do. That will probably result in the peonies coming up clean and healthy next season.

If it is a fungus, the fungicides aren't terribly effective unless they're used early - so I've read. I'm no expert, but like you, have had peonies for many years. So far no problems, knock on wood.

    Bookmark   September 9, 2009 at 3:46PM
Thank you for reporting this comment. Undo
tulipsmiles(6 South of Boston)

Jacqui Ontario,
I too have the same problem!
Infact, I had it last year too. I am new to gardening and didn't know what to do, so I didn't do anything! (well I actually did cut them down to the ground in the fall as they were just too ugly to look at and I thought they were dead and gone, for sure.)

Anyway to my delight, this Spring, they came back as happy, healthy and pretty as can be. So I thought to my self, hmmmmm... they are doing well and survived what ever that was, I'm going to leave them be.

Here we are, in the fall and they have it again. I bet they have had the brown leaves for a while now, though.
It really looks to be a major infestation, whatever it is. It can't be healthy for my other surrounding plants (roses) either.

I don't want to spray, as I try not to do that. I guess I'll do nothing again, and hope they return happily in Spring?

We had a very wet summer this year, so that might contribute, but even last year, which was very hot and dry, it seemed to be worse. Can it be that this is just how Peonies look at the end of the season??

Good luck and I'll follow and let you know if I learn anything more!

Tulipsmiles

    Bookmark   September 14, 2009 at 8:41PM
Sign Up to comment
More Discussions
Double Pink Fernleaf
I have seen the most beautiful pink double fernleaf,...
KarenPA_6b
I'm So Bored!
Why does this winter feel SSSSOOOO LLLLOOOONNNNNGGGGGG??...
lizbest1
Peonies Zone 9
I've read that tree peonies do better in my zone, however...
MK
New at growing peonies
Hi, I LOVE peonies, but I am new at growing them. After...
dizzylizzy415
Moving my Itoh peonies from IL to TN.
I dug these last November since I knew we might be...
ryseryse_2004
Sponsored Products
nuLOOM Handmade Pino Peonies Black Runner (2'6 x 8')
Overstock.com
Whiter Shade of Pale Faux-Peony Arrangement - WHITE
$335.00 | Horchow
Lacquer Box with Black Round Glass Candle - Kashmiri Spice
$139.00 | FRONTGATE
Modern Indoor/Outdoor Area Rug: Chandra Rugs Thomaspaul Multi 7 ft. 9 in. Round
Home Depot
Mille Nuits Tulip Wall Sconce by Baccarat
$1,050.00 | Lumens
Peony Purple - Satin Dark Gray Shade Ovo Table Lamp
Lamps Plus
© 2015 Houzz Inc. Houzz® The new way to design your home™