Ask a Question forum: Sensation Peace Lily

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Name: Mary
Houston (Zone 9a)
maryg930
Oct 12, 2016 4:46 PM CST
I feel as though something is wrong with my lily, the leaves are lightening and slightly yellowed, listed are its conditions and photos. Any advice?

-Well drained soil, only watered when top dries out
-At north facing window
-In apartment kept around 70 degrees, sometimes faces a draft
-Leaves misted regularly
-Had a minor fungus gnat problem recently that has been treated and cured with Bt
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Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
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plantmanager
Oct 12, 2016 4:55 PM CST
Welcome, Mary! Wow, that is a stunning peace lily! I've never seen one with such beautiful, large leaves! It actually looks pretty good to me, but let me call a houseplant expert to help. @willc.
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Name: Mary
Houston (Zone 9a)
maryg930
Oct 13, 2016 11:07 AM CST
Hey thank you! It's a sensation peace lily apparently they get very big. Here's another photo for @willc to see
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Name: Laurie Basler
Western Washington (Zone 7b)
Houseplants Region: Pacific Northwest Sedums Orchids
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lauriebasler
Oct 13, 2016 6:41 PM CST
Has it been fertilized lately?
Name: Karen
NM , AZ (Zone 7b)
Region: New Mexico Region: Arizona Greenhouse Cactus and Succulents Adeniums Garden Art
Plumerias Hibiscus Houseplants Plant Lover: Loves 'em all! Dog Lover Cat Lover
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plantmanager
Oct 13, 2016 6:43 PM CST
Rolling on the floor laughing Rolling on the floor laughing That is an incredible looking plant. I'm not familiar with any that get that large. Where are you @willc?
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Name: Sally
central Maryland
Seriously addicted to kettle chips.
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sallyg
Oct 13, 2016 9:18 PM CST
Impressive plant! I also want to see what WillC says. How long have you had it? Always at that north window? (on the low end of light)
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Name: Mary
Houston (Zone 9a)
maryg930
Oct 14, 2016 2:51 PM CST
Hey! Yes I've had it about 5 months, in the last month it's had the yellowing and browning problems. It's always been at the north window, it's a floor to ceiling window that has bright but indirect light
Name: Mary
Houston (Zone 9a)
maryg930
Oct 14, 2016 2:51 PM CST
It's also never been fertilized
Name: Will Creed
NYC
Professional interior landscaper
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WillC
Oct 15, 2016 6:49 AM CST
It is nice to be missed! I apologize for not being available sooner. I receive many plant questions every day at wcreed@HorticulturalHelp.com that I give priority to answering.

Mary, I don't see anything in the photos of your Spathiphyllum 'Sensation' that gives me concern. Posted photos are not always accurate in color renderings, but overall your Peace Lily seems to be very healthy. The few discolorations that I see are blemishes caused by having less than perfect conditions at all times. Allowing the soil to become just a bit too dry or staying a bit too wet will cause some mild leaf edge browning and occasionally small leaf spots. Likewise, a bit too much light for part of the day and a bit less than ideal light at other times of day can create these blemishes. You can expect the gradual discoloration and die-back of some older lower leaves as new leaves are added up top. This is normal.

Misting does very little to improve humidity and Peace Lilies do just fine in very low humidity as long as they are watered properly.

Long term, there are some considerations.The location close to a north window is very good. You mentioned that it has well drained soil. I'm not sure how you determined that, but I hope it is not because you repotted it and added or replaced soil with your own potting mix. Perhaps you are referring to the outdated practice of adding "drainage material" to the bottom of the pot. Let me know if you did any repotting or soil replacement and just how you went about it because that can cause a serious problem down the road.

Watering when the top dries out can be very subjective. The presence of fungus gnats is very often a sign of A) Poor soil quality and B) Keeping the soil too wet. It is best to water just as or before the leave start to droop just a bit rather than relying on your sense of touch.

Laurie wisely inquired about fertilizing. Some leaf discoloration can be caused by nutrient deficiency. However, adding fertilizer may not resolve the problem if the soil pH is out of line. This would be the case only if you added your own soil mix or your local tap water is on the hard side. I have posted information on the Houseplants forum titled, "Fertilizing houseplants" that explains this in greater detail.

I hope I haven't overwhelmed you with information. But I know others read this, so I try to anticipate what questions they may have, as well.

Will Creed
Horticultural Help, NYC
[url=www.HorticulturalHelp.com]www.HorticulturalHelp.com[/url]

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