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-   -   Bibb growing loose heads (http://www.hydroponicsonline.com/forums/showthread.php?t=3303)

Gnomegrown 09-01-2016 04:48 PM

Bibb growing loose heads
 
4 Attachment(s)
Hello all Newb here,
I have a good size vertical setup in my garage, (DWC, 2.5" deep), using LED, Co2, O3 injection, a/c at 68 degrees water at 66 degrees, 75% humidity using chem-grow 8-15-36 mixed per instructions.

PH is a 6.2 with little fluctuation and nuts are at 650+250 source water.

I cant for the life of me get a tight head of Bibb, the leaves are long with a loosely formed head.

Any ideas on what to do? My oakleaf is doing great, bibb is just taking too long to form a dense core.

Gnomegrown 09-01-2016 04:55 PM

1 Attachment(s)
The big picture

Gnomegrown 09-03-2016 10:22 AM

Anyone.....

GpsFrontier 09-13-2016 05:49 AM

Without going through a series of questions I would be willing to bet it's your lighting. I'll bet it doesn't contain the full spectrum of light wavelengths.

shillamus 09-14-2016 02:56 PM

Bibb types such as Buttercrunch form a loose head; you can harvest anytime, but for the classic Bibb rosette, wait until the lettuce is nearly full size (6 to 8 inches in diameter) and cut it at the soil line.

https://bonnieplants.com/growing/growing-lettuce/

GpsFrontier 09-14-2016 09:53 PM

I assume Gnomegrown is already familiar with loose leaf lettuce and is referring to abnormally long leaves and abnormally loose heads.


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