Ask a Question forum: Bamboo palm falling leaves

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Cairo, Egypt
Ramy
May 29, 2018 6:15 AM CST
My bamboo palm leaves are falling massively. Some look wrinkled or shrinked, while others look dry. I use a 9 watts led grow light about 2 meters away, that's because this area of the house doesn't get enough light. I'm wondering whether this is because of too much light or overwatering. I don't water unless the soil surface is dry 2-3 cm deep. Before, it was doing great, but recently I started using the grow light and also started watering more and all this started to happen. The pictures are attached.
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Name: Philip Becker
Fresno California (Zone 8a)
Image
Philipwonel
May 29, 2018 7:35 AM CST
If it was doing fine before !
Why did you increase the water ?
That's the problem.👍👍
Anything i say, could be misrepresented, or wrong.
Cairo, Egypt
Ramy
May 29, 2018 10:01 AM CST
I was watering very scarcely because I'm always worried to overwater but I thought maybe with the led light I should water more often. So are you sure these are signs of overwatering?
Name: Will Creed
NYC
Profess plant consultant & educator
Image
WillC
May 29, 2018 1:42 PM CST
The leaf drop is a generic symptom without a single specific cause. It is likely to be caused by inadequate light or improper watering.

Is the LED the only source of light or are using it to supplement some natural light? If the former, then it is probably not getting enough light.

Allowing the top 2-3 cms. to dry in between waterings is appropriate, but how much water are you adding each time? And how often does it reach that level of dryness?

Be sure to check the space between the two pots for any accumulation of water.

Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at [email protected]
I now have a book available on indoor plant care
Cairo, Egypt
Ramy
May 30, 2018 7:24 AM CST
First I it was in that same corner but I felt it looked lifeless so I thought maybe it wasn't getting enough light. So I put a normal 23 watts flourescent bulb and it improved a lot. It started to look deep green in color and to produce new fronds. Throughout this period I gave it water scarcely. But then I used this new led grow light. It started to look lighter green not deep green as before so I put the bulb farther from the plant. In that same time i started to give it more water because I thought I wasn't giving enough water as it was written on gardening websites. I used to give it water almost once every 2 weeks so I thought it wasn't enough.

But now I don't know whether this is because the light is strong or because I watered it more. It's either of both I'm sure. What do you think? Do the leaves look like they receive strong light?
Name: Philip Becker
Fresno California (Zone 8a)
Image
Philipwonel
May 30, 2018 7:33 AM CST
I'd go back to the 32 W bulb, and the old watering schedule. 👍👍
Anything i say, could be misrepresented, or wrong.
Name: Will Creed
NYC
Profess plant consultant & educator
Image
WillC
May 30, 2018 2:25 PM CST
It's not possible to tell from the leaf photos whether it is a light or watering problem. I suspect the problem is that you were letting it get too dry and after a while, it started to deteriorate. Coincidentally, that deterioration happened about the time you changed the light source and increased the water. It is not likely that those changes CAUSED the problem. However, not knowing the specifics of the LED grow light, it is possible that is part of the problem.

You had success with the fluorescent bulb so I suggest going back to it. More importantly, water thoroughly until some water trickles through the drain holes every week or so or when the top 2-3 cms. are dry.
Will Creed
Horticultural Help, NYC
www.HorticulturalHelp.com
Contact me directly at [email protected]
I now have a book available on indoor plant care

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