Ask a Question forum: Watermelon Peperomia- brown spotting

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May 10, 2017 10:59 AM CST
Good afternoon,

I recently purchased a Watermelon Peperomia from a local Nursery. I immediately repotted into a permanent home. A few days later I noticed brown spotting on the leaves. I know that this plant cannot be placed in direct sunlight and prefers light shaded environments. That is where it is currently. The soil is moist, but not wet. What do you think the spotting is caused from and how can I repair it?

Thumb of 2017-05-10/visitor/2a558d

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Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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May 10, 2017 11:23 AM CST
First I must admit I know next to nothing about Peperomia.
That being said, this past winter I spent some time propagating 108 plants to share and yes, some of the plants developed brown spots. Since I had no clue, I just pulled off the affected leaves and discarded them.

I did a quick bit of research and (I can only guess at this part) it may have been Rhizoctonia leaf spot which is something that happens to some Peperomia varieties.

Here is the wiki page for diseases of Peperomia:

Hopefully an expert will come along with a better answer for you. Thumbs up
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"
Name: Melissa
(Zone 6a)
May 10, 2017 6:24 PM CST
Hi Breaodell
I don't think it's a watermelon peperomia
It might be a variegated peperomia .
I have 3 of Variegata
It looks like it might be newer leave that were maybe damage , and you can just trim those's off , new ones will grow .
I had a lot of damaged leaves on mine as they unfolded .
Now that it's spring & a lot more of sun light , I gave them some fertilizer and they are doing good .
I have mine in afternoon sun , they seem to like it for now
They also like to be on the dry side a little then water them .
They are very susceptible to root rot ... I killed a few by watering them too much.
Hope this helps .

Name: Melissa
(Zone 6a)
May 10, 2017 6:56 PM CST
Here is a photo of my Variegata Peperomia
Thumb of 2017-05-11/Moonbeam/fc9aed

Name: Will Creed
Professional indoor plant consultan
May 13, 2017 11:13 AM CST
It appears that the leaf discoloration is occurring on new leaf growth. That is almost always an indication of a problem with the roots. Unless done knowledgeably and carefully, is very easy to damage tender roothairs when repotting. In addition, if moved to a larger pot and/or new soil is not sufficiently porous, the soil around the roots will not dry out properly and cause root rot.
Will Creed
Horticultural Help, NYC
I now have a book available on indoor plant care

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