Help with iceberg lettuce

FastForwardMarch 24, 2013

Im new with hydroponics. I need some advice and opinions about this iceberg lettuce they are a week old i have not taken them outside i have them in my room i water them daily they look thin and long its that normal. I would like to know when should i move them to the hydroponic system (NFT). It gets really hot outside above 90F in full sun 80F to 85F in the shade, if the water its cool enough does it help.At night tempeture is 75F to 70F. Water ph is 6.0 to 6.5 . Do they need full sun? I do not have them under light i took the picture at night.

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cole_robbie(6)

As soon as a seed germinates, it needs light, or else they get "leggy," which is what you have. You need a light fixture if you are starting them indoors, but you can use any kind of fluorescent light. They are cheap. You can screw a spiral cfl bulb into any inexpensive desk lamp and make it a grow light for seedlings. You will also need a small fan to move air in the room. They need a gentle breeze, or that can also make them leggy. I would just yank those and start over.

My best luck with cool weather crops outdoors in hot weather has been under a deck on a concrete pad. They like the shade and the concrete helps keep the roots cool. The small rockwool cube by itself is not great for the hot weather, because it heats up so quickly. If you move them into a system with a lot of mass, like a deep water culture setup, that will help your roots not get too hot.

    Bookmark   March 24, 2013 at 11:51PM
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ethnobotany

*What he said*

You need throw those away and get the next seedlings under full sunlight or an indoor setup. Those will not turn out well with how leggy they're already.

    Bookmark   March 25, 2013 at 6:00PM
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