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Banana leaves splitting

Posted by rimb05 (My Page) on
Tue, Jun 19, 07 at 17:09


I've got a Blue Java banana tree growing in a hydroponics system. It's been doing great, and is about 12 feet high. Lately, the new leaves are splitting as they unroll. After an entire leaf unrolls, it looks as if it was split apart by wind, tattered. I'm wondering if this may be due to a nutrient deficiency, or some other cause.

The nutrients I use are General Hydro flora, and my concentration is 1200ppm

I appreciate any insight.

Follow-Up Postings:

RE: Banana leaves splitting

Not that I can help with the ?, but how many leaves have opened like that?

RE: Banana leaves splitting

I know nothing of growing with Hydroponics, but I sure know now, why I like to grow things naturely. I've never seen anything like it, in all the years I have been growing Banana's. I hope someone can answer this question for you!!! Diana55

RE: Banana leaves splitting

I'm in Chicago, so I'm afraid I have no choice but to grow indoors... The banana has 14 leaves total right now, and only the top 3 or 4 leaves have this problem. Other than that, the leaves look healthy, good color, no holes or patches.

RE: Banana leaves splitting

My GUESS would be nutrient deficiency/imbalance.

RE: Banana leaves splitting

That's was my first guess too, but does anyone have an idea of what kind of nutrient deficiency would cause splitting like that?

Thanks again.

RE: Banana leaves splitting

Well, lets start from the beginning... what nutrients are in "General Hydro flora"? I assume you have the basic NPK, but what %? And what about magnesium, iron and all the micronutrients?

Also, I do wonder if light is a basic problem considering you grew it indoors.

Are your leaves thin and fragile in general?

RE: Banana leaves splitting

Don't know what nutrient is wrong at this time, but Hydroponic growing needs careful, vigilent attention.

I think Joe Real has grown bananas hydroponically. Check with him.

RE: Banana leaves splitting

OK, here's what's in the nutrient I'm using:

Available Phosphate (P205) 6.0 %
Soluble Potash (K20) 11.0 %
Magnesium (Mg) 2 %
1.5% Water Soluble Magnesium (Mg)
Combined Sulfur (S) 1.0 %
Total Nitrogen (N) 7.0 %
0.55% Ammoniacal Nitrogen
6.45% Nitrate Nitrogen
Calcium (Ca) 5.0 %
Cobalt (Co) 0.0005 %
Soluble Iron (Fe) 0.1 %
0.1% Chelated Iron (Fe)
Manganese (Mn) 0.05 %
0.05% Chelated Manganese (Mn)
Molybdenum (Mo) 0.0008 %

As far as light, something occured to me. The lamp I'm using (2 1000w HID lamps) hangs from the ceiling a couple of feet from the tree. The leaves that are having this problem also happen to be the ones which have grown higher than my lamp. Could this be the cause? Does low light make the leaves weaker? They look healthy otherwise...

All the leaves, even the ones higher than the lamp do get some light from the windows, but maybe not enough?

RE: Banana leaves splitting

I know it's not what you're asking but, why not try a dwarf variety that maybe gets 6'-8' tall instead of the blue java?

RE: Banana leaves splitting

I had that happen to my ensete maurelli after I potted it up and moved it to a new location.I was told it was called "choking", where the new leaf has to force itself out. It happens when the plant is stressed from change of environment or nutrients. Mine is now fine.

RE: Banana leaves splitting

Thanks, I appreciate all the responses. I'm going to experiment with watering frequency, to see if that helps. It certainly resembles choking symptoms.

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