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Avatar for Oopsiwetmyplants
Sep 29, 2020 6:59 PM CST
RI,USA zone 6b
Does anyone know what could be causing these spots on my monstera? She is very healthy otherwise. Bought her when she was small in a 12" pot in June and she now sits in a 5gallon pot (14") pot. Soil is equal parts moisture control potting soil, orchid mix, perlite. I water when 3" is dry. I give it a healthy amount of water then will not water again until it's fully dry usually about 1.5-2 weeks. It sits in front of a west facing window so it gets direct sunlight in the later part of the day. I don't regularly fertilize but have used philodendron food and miracle grow all purpose plant food 3 weeks ago. I regularly clean leaves with neem oil extract and mix it with water and dish soap. Could this be bacterial or fungal or sun burn? I don't see signs of pests.
Please help! Thank you so much!







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Last edited by Oopsiwetmyplants Sep 29, 2020 7:48 PM Icon for preview
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Sep 29, 2020 7:02 PM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Ukraine Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
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Hi Oopsiwetmyplants, Welcome!

It looks like your plant did not upload, can you try again. If possible, upload a photo showing the entire plant, one showing the soil and one showing the leaf issues.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Avatar for Oopsiwetmyplants
Sep 29, 2020 7:18 PM CST
RI,USA zone 6b
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Sep 30, 2020 6:00 AM CST
Name: Gina
Florida (Zone 9a)
Tropical plant collector 38 years
Aroids Region: Florida Tropicals
well I cannot diagnose the spots, I quit trying to diagnose issues like that from photos. But the HOLES are fenestrations and are a part of the natural evolution of the leaf of Monstera deliciosa as it begins to reach full maturity. You can expect more of those. The leaf edge of Monstera have pinnation, and the leaf body get fenestration
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Avatar for Oopsiwetmyplants
Sep 30, 2020 7:59 AM CST
RI,USA zone 6b
Thank Gina yes I familiar with the fenestrations of monsteras. They come in all shapes and sizes and along the rib of the leaves. My worry is the spots that start off light then become pin sized holes with yellow rim around them. It's so worrisome because I don't want to lose my plant. Or worse have it spread to the rest. Thanks for the help!
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Sep 30, 2020 9:41 AM CST
Name: Gina
Florida (Zone 9a)
Tropical plant collector 38 years
Aroids Region: Florida Tropicals
Well other people have stated in the past that they believe spots and holes like those may be from droplets of moisture on the leaves being superheated by the sun and making little surface burns on the leaf tissue. Are you misting it a lot and then the sun coming in strongly through the window?
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Sep 30, 2020 9:42 AM CST
Name: Lin Vosbury
Sebastian, Florida (Zone 10a)

Region: United States of America Region: Ukraine Region: Florida Charter ATP Member I was one of the first 300 contributors to the plant database! Million Pollinator Garden Challenge
Birds Butterflies Bee Lover Hummingbirder Container Gardener Houseplants
Your Split-Leaf Philodendron (Monstera deliciosa) is really beautiful and it looks like you have a nice plant collection going on in that room!

Unfortunately, problems often arise when plants are repotted and the roots are disturbed. The yellow leaf spotting could be something as minor as the plant acclimating to it's new pot and soil, or it may be a viral or fungal related issue but I wonder if it may be fertilizer related, especially when you say:

"I don't regularly fertilize but have used philodendron food and miracle grow all purpose plant food 3 weeks ago."

I don't know what philodendron food is but I don't think there is ever a need for two types of fertilizer at the same time and I wonder if possible over fertilization may be the cause of the yellow spots on your Monstera leaves? Shrug!

I'd advise to keep the plant in a location of bright light with no direct sun and to completely flush the soil the next couple of waterings to try and flush out fertilizer salts. I rarely fertilize my container plants but when I do, it's only during the active growing season of summer. I think plants (even those in containers) have a habit of slowing down growth and resting during fall and winter.
~ I'm an old gal who still loves playing in the dirt!
~ Playing in the dirt is my therapy ... and I'm in therapy a lot!


Avatar for Oopsiwetmyplants
Sep 30, 2020 11:34 AM CST
RI,USA zone 6b
Thank Gina yes I familiar with the fenestrations of monsteras. They come in all shapes and sizes and along the rib of the leaves. My worry is the spots that start off light then become pin sized holes with yellow rim around them. It's so worrisome because I don't want to lose my plant. Or worse have it spread to the rest. Thanks for the help!
Avatar for Oopsiwetmyplants
Sep 30, 2020 11:39 AM CST
RI,USA zone 6b
Thanks again Gina! Nope I don't mist this one because the humidity in that room is high enough that it causes droplets to form i bet this might be it. I've read about the droplets and the sun too I'm really hoping that is what it is. I did notice that the monsteras away from the window DO NOT have this at all so I'm really hoping you nailed it with tiny sun burns. Thinking Thank You!
Avatar for Oopsiwetmyplants
Sep 30, 2020 11:43 AM CST
RI,USA zone 6b
Thanks plantladylin!! I read about over fertilizing and chemical build up scortching the leaves! I'm hoping it's that vs a bacterial or fungal disease. In either case the weather has been great here so I'm going to give this monster a deep cleansing shower outside and hope it flushes out the soil. Thanks for noticing the photo bombers in the room. I've been working on my plant collection since March! Grin Smiling Thank You!
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Sep 30, 2020 1:18 PM CST
Name: Gina
Florida (Zone 9a)
Tropical plant collector 38 years
Aroids Region: Florida Tropicals
I am really digging on that woven thingie you have on that Monstera pot. Where did you get that?
Award winning beaded art at ceinwin.deviantart.com!
Avatar for Oopsiwetmyplants
Sep 30, 2020 7:05 PM CST
RI,USA zone 6b
Hi Gina1960 I found that basket at a local Hobby Lobby store on summer clearance. Smiling Thank You!
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Sep 30, 2020 7:31 PM CST
Name: Gina
Florida (Zone 9a)
Tropical plant collector 38 years
Aroids Region: Florida Tropicals
Cool. We have a Hobby Lobby I may go look!
Award winning beaded art at ceinwin.deviantart.com!
Avatar for erniesax
Oct 3, 2020 2:15 PM CST
FLORIDA
go ahead and air layer it now and if disease continues cut it at air layering site and replant..
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