Houseplants forum→brown spots on bird of paradise leaves

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Rioxmas
Oct 12, 2018 7:29 PM CST
Just found brown spots on leaves of my houseplant BOP and its turning yellow...have had it for half year and this is the first time seeing this...Does anyone knows why? Thanks in advance!


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Name: Will Creed
NYC
Prof. plant consultant & educator
Image
WillC
Oct 13, 2018 9:25 AM CST
It is not a pest or disease. A photo that shows the entire plant, including its pot would be helpful.

If it is an older leaf that is discoloring, then it is probably not a problem. If it is a newer leaf, then it may be a watering issue.

How far from the nearest window is it? Was it repotted? What has been your watering routine?
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at wcreed@HorticulturalHelp.com
I now have a book available on indoor plant care

Rioxmas
Oct 17, 2018 11:00 PM CST
WillC said:It is not a pest or disease. A photo that shows the entire plant, including its pot would be helpful.

If it is an older leaf that is discoloring, then it is probably not a problem. If it is a newer leaf, then it may be a watering issue.

How far from the nearest window is it? Was it repotted? What has been your watering routine?


Thanks for replying Will! It's a relatively newer leaf. I placed it 61inch away from the wall that has 3 northeast facing windows. I haven't repotted it since bringing it back home 5 months ago. I water it every 4 days for the past few months. The blue/red light in pic is 50W LED Grow Lights with UV IR I set above it to give it enough light. I also place a humidifier right next to it to give it enough moisture throughout the day(its too dry in Boston).

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Name: Will Creed
NYC
Prof. plant consultant & educator
Image
WillC
Oct 19, 2018 11:13 AM CST
The purple photos are not really helpful. It appears that new taller leaves are fine. If it is just the small sucked growth at the bottom that has your concerned, don't worry about it.

The plant light does not look like it covers enough of the plant. Any reason you opted not to keep it right in front of the window?

Low humidity is not a problem for this plant. The winter air is just as dry in NYC as in Boston!
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at wcreed@HorticulturalHelp.com
I now have a book available on indoor plant care

rigorod13
Apr 26, 2020 9:02 PM CST
Good Evening,

Am new to the forum and am wondering if there was any conclusion from this thread. I bought a giant BOD in December and have it in a western facing window where it gets about 3 hours of sunlight from about 4 pm until 7 pm, this time of year. This limited lighting is due to the overhang from the apartment above me and the fact there is another building across the street which blocks out the final hour or so of sunlight.

My giant BOD has started displaying the yellow with brownish/black spots almost identical to the ones that the original poster shared. Root rot? Overwatering? Too much fertilizer? If need be I can upload pictures.

I would appreciate your help. Thanks.
Name: Will Creed
NYC
Prof. plant consultant & educator
Image
WillC
Apr 27, 2020 6:52 AM CST
@rigorod13 - Welcome! BoP's do best in lots of sunlight so that could be a problem for yours.

Please post a photo of your plant. You may want to start a new thread to get better attention.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at wcreed@HorticulturalHelp.com
I now have a book available on indoor plant care

rigorod13
May 3, 2020 9:53 PM CST
great, i am going to start a new thread!

Genn
Jul 21, 2021 12:04 PM CST
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Hi,
I recently started noticing these brown cluster of spots towards the base of the smallest lower leaves. I have had this plant for about 6 months. The base of the stems are hard so I don't think it's root rot and haven't noticed any pests except for a few tiny flies (I think). Added some fertilizer about a month ago. Mybe related? Need help I hate to see it suffer
Name: Will Creed
NYC
Prof. plant consultant & educator
Image
WillC
Jul 24, 2021 6:42 AM CST
@Genn Welcome! I don't see enough leaf spotting to believe there is a serious problem. Some leaf imperfections are normal and unavoidable. The discoloration and dieback of older, lower leaves are also normal.

How do you determine when it is dry enough to water? How much do you give it? Does that pot have a drain hole? (It does not need the additional humidity.)
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at wcreed@HorticulturalHelp.com
I now have a book available on indoor plant care

Genn
Jul 25, 2021 9:39 AM CST
@WillC, thanks alot for getting back. I figured that if 2 new leaves came out over the last month that the problem isn't so serious. Not sure if I should cut the leave (at base of stem) with the worst discoloration. One leaf in particular. Thoughts?

Regarding watering, I check the soill pretty regularly by sticking a finger 2inches deep. It's hot these days so I notice the soil dries out pretty fast. Watering about a liter every 4 days. It has a drain hole and has an outer pot shell. I haven't given it a good shower soaking though and through yet was wondering if I should. Noted with the humidity. I feel like it the humidifier may have started discoloring the lower leaves.

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Name: Will Creed
NYC
Prof. plant consultant & educator
Image
WillC
Jul 25, 2021 10:27 AM CST
I'm surprised that the soil is drying 2 inches deep after only 4 days. But it seems to be doing pretty well so it may not be a problem. Always water thoroughly enough that a bit of water trickles through the drain holes. No need to shower it as long as the soil is watered properly.

Cut off the discolored lower leaves right where they emerge from the main stem.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at wcreed@HorticulturalHelp.com
I now have a book available on indoor plant care

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