Houseplants forum: I'm already fouling up with my Dumb Cane...

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Los Angeles
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krystenr1
Aug 17, 2017 3:44 PM CST
What have I done that the leaves are yellowing?

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Georgia (Zone 8a)
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Hamwild
Aug 18, 2017 10:38 AM CST
I suspect too wet.
Los Angeles
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krystenr1
Aug 18, 2017 12:14 PM CST
Hamwild said:I suspect too wet.


I haven't watered it at all since I brought it home a week ago, but soil does still feel moist, so the gardening center must have really overdone it. Where is the best area to cut these yellow leaves off from? Right where the stem turns into leaf? Or at the base?
Name: Will Creed
NYC
Professional indoor plant consultan
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WillC
Aug 18, 2017 12:29 PM CST
You haven't had your Dieffenbachia long enough to "foul it up!" Rolling my eyes. It may simply be reacting to its change in environment or something done before you got it. If they watered it properly just before you acquired it, then it might reasonably take more than a week for the soil to dry out again.

I assume you have it within a few feet of an uncovered window. It doesn't need direct sun, but it does need lots of bright indirect light.

Trim off the yellowing leaves. Keep an eye on the new leaf growth because that is its future and a reflection on your care. Don't worry much about the older leaves.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
I now have a book available on indoor plant care
Los Angeles
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krystenr1
Aug 18, 2017 12:50 PM CST
WillC said:You haven't had your Dieffenbachia long enough to "foul it up!" Rolling my eyes. It may simply be reacting to its change in environment or something done before you got it. If they watered it properly just before you acquired it, then it might reasonably take more than a week for the soil to dry out again.

I assume you have it within a few feet of an uncovered window. It doesn't need direct sun, but it does need lots of bright indirect light.

Trim off the yellowing leaves. Keep an eye on the new leaf growth because that is its future and a reflection on your care. Don't worry much about the older leaves.


Thanks Will! I think it maybe needs a little more light than my current window. It's a north-facing window that has a substantial overhang. The room is bright-ish, but perhaps it needs to go into a brighter room.

Where along the stem should I trim these yellow leaves? Right where the stem turns into leaf, or lower down?
Name: Will Creed
NYC
Professional indoor plant consultan
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WillC
Aug 18, 2017 1:51 PM CST
Do improve the light, if you can. Remove the entire leaf and its stem where it attaches to the main stem.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
I now have a book available on indoor plant care
Name: Laurie b
Western Washington (Zone 7b)
Houseplants Region: Pacific Northwest Sedums Orchids Tropicals Region: Mexico
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lauriebasler
Aug 19, 2017 2:33 AM CST
I agree. Another good sign is it seems only the lower leaves are balking at their new home. Older leaves yellowing is what diefs normally do. They shed the older leaves to give more energy to new growth.
Once in a while it seems like we end up with a new plant that is just in soil that stays too soggy too long. In that case, repotting is better for the plant than having it drown. But first I would hold out hope that as Will suggested, better light will take care of the problem.
Name: Lindsey
Ohio (Zone 6a)
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ljones26
Aug 21, 2017 9:35 AM CST
Yeah it is just shedding its older leaves, my plants do it often. Since its just the one and not ALL of them turning yellow, its not an issue. If all of them were turning yellow, it would most likely be from overwatering. Just let the yellow leaf fall off, you'll be good!
Name: tarev
San Joaquin County, CA (Zone 9b)
Always count your blessings in life
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tarev
Aug 21, 2017 9:44 AM CST
Hello krystenr1, it looks like older leaf, so it is natural to die off. I see new leaf growth in other areas, so your plant is adjusting well. At times, plants redirect their energies to new growth, so older leaves are the first to go, as it gives new growth a chance to push out.

It is a low light plant, so north facing window is okay. I hope that container has drain holes, so the water can drain out.

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