stalky lettuce


I have set up a hydro system to grow lettuce outdoors on my patio here in Florida. My lettuce has been growing very stalky and not forming into nice tight heads. It flops over the sides of my PVC pipes. I have followed suggestions on youtube by MHP gardner which was very helpful but his lettuce grew into well formed heads with a deeper green color. I started with black seeded simpson lettuce but have also added butter crunch in hopes of having better luck getting heads to form but so far they have a lot of stem too. Any ideas on this problem?

Comments for stalky lettuce

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Nov 11, 2013
Lettuce
by: MeMwl

Do you get enough light, it seems you know what you are doing as far as ferts go, I never grew it except in a raft system, and that works great as long as you get real good light, I used shop lights no more than 2 inches from the top, I had to raise them almost daily

Nov 11, 2013
lettuce
by: Anonymous

Well it is outdoors on my lani where it receives about 2 hours direct sun this time of year the rest of the day is indirect sun. most times the direct sun is pretty intense in Florida so after a couple of hours the lettuce gets a bit wilted but recovers as the sun shifts away. I'm unsure if more direct sun wouldn't shrivel the lettuce if it was left in the full sun all day.

Jan 01, 2014
Too much
by: Anonymous

Looks like too much sun and too much fertilizer making the plant bolt. If possible I'd make a tent out of shade cloth and cut back on nitrogen content in the fertilizer. Kelp works really good. It can stimulate a lot of growth without additions of nitrogen because it contains growth hormones and it turns the plant's attention to it's roots.

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