OneHitDone
Well-Known Member
@Stephenj37826 where you at on the lettuce project bro?
All COB Users - Lettuce Grow Challenge!!
- Thread starter OneHitDone
- Start date
OneHitDone
Well-Known Member
Damn, you mean Far Red actually is a thing for plant shaping? 
@Stephenj37826 what ever happened to your lettuce grow attempt?
@Stephenj37826 what ever happened to your lettuce grow attempt?
OneHitDone
Well-Known Member
No need to practice brother, my track record for finishing mold free crops is much better than yours
You gonna be in on the next comp?
PSUAGRO.
Well-Known Member
Mold adds weight, so you're fucked...... going for my second party cup win grower, no one will stand in my way, except Alaska , or puff or mc...... that's itNo need to practice brother, my track record for finishing mold free crops is much better than yours
You gonna be in on the next comp?
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OneHitDone
Well-Known Member
@Stephenj37826 where you at bro?
You ready to get in on this or what?
I see your buddies over at NextLight need to do some work work on their spectrum. Nice rose bud bonsai leaf lettuce heads they have going there
Think your QB's can actually do any better?
You ready to get in on this or what?
I see your buddies over at NextLight need to do some work work on their spectrum. Nice rose bud bonsai leaf lettuce heads they have going there
Think your QB's can actually do any better?
muleface
Well-Known Member
OH SNAP! The gauntlet has been thrown down!!!
Its been WAY too long folks, i need to do some serious catching up on my post reading. What the hell, i will grow some lettuce with my quantum boards.
damn nice lettuce, fantastic grow. What are you using there? Rigid LED strips? (i could look back and see older posts, sorry i am asking)
Its been WAY too long folks, i need to do some serious catching up on my post reading. What the hell, i will grow some lettuce with my quantum boards.
damn nice lettuce, fantastic grow. What are you using there? Rigid LED strips? (i could look back and see older posts, sorry i am asking)
eyderbuddy
Well-Known Member
is there anything like a recommended spectrum when it comes to growing lettuce and greens? like 4000k maybe?@Stephenj37826 where you at bro?
You ready to get in on this or what?
I see your buddies over at NextLight need to do some work work on their spectrum. Nice rose bud bonsai leaf lettuce heads they have going there
Think your QB's can actually do any better?
View attachment 4232804
SSGrower
Well-Known Member
OneHitDone
Well-Known Member
4000K alone in "LED" spectrum leaves much to be desires in leafe shaping - for lettuce at least I can attest first hand.
Even 90 CRI 4K
Far red is a NECESSITY for lettuce...........PERIOD........
muleface
Well-Known Member
I grew a bunch of greens, the first time it wasn't great, but i got much better at it.
I like much higher K lights, maybe 6000k to 6500k. As far as CRI goes, i would not spend the money on high cri lights for lettuce, you can grow lettuce with an incandescent light bulb. It really is pretty easy.
As far as time goes, greens don't require a ton of light, not like say tomatoes. In the pictures I am running at about 18 watts a square foot. I think I ran my lights for about 14 hours a day.
Nutrients is where you will get hit, getting the lettuce to grow isn't the problem. Making it not taste bitter is a different story. I found that lettuce doesn't need a ton of nutrients.
check out
https://hydro-gardens.com/product/lettuce-formula-5lbs-box-8-15-36x5/
this is a dry nutrient someone took the time to formulate. its not very expensive. It works very well.
If you are new to this, please note you will need cal/mag to go with the powered nutrients, also, you cannot mix them together dry. Or for that matter, never mix your cal/mag with anything directly. Always fill up your reservoir with water first, then mix them one at a time in your res. Mixing them together will not kill you, it will however make some of the nutrients inert.
Some plants are better then others when it comes to tip burn. I could never get bibb lettuce to grow very well, it always looked awful.
Attachments
eyderbuddy
Well-Known Member
Hey man, could you talk a bit more about the bitter taste in lettuce?
I tried growing lettuce once, but it was bitter... How did you solve that issue?
budmurr
Member
These are the Cri 3590 top bin 3500k. Currently I have them 21" above the table with a 80 deg lense.
budmurr
Member
I am using Master Blend Nutrients at 700 -800 ppm.
muleface
Well-Known Member
As far as lighting goes, you will see some weird leaf structure with 3500k, they will be thick and hardy but will grow well. I really like masterblend, i use it for all my grows. With things other then lettuce I like to add some other stuff directly to my pots like:
FoxFarm Bushdoctor Microbe Brew
FoxFarm Big Bloom
But with lettuce, i like to back down the nutrients a little. See the attachment for tip burn help.
As far as bitterness goes, you have to keep the plants cool, when you walk into the room think, wow, this is too cold for anything else to grow. I like to run a light breeze over my plants too. If they get too warm they will start to seed (bolt) when they do it gets really bad.
Back down your nutrients, all things said and done, its lettuce, its cheap to grow, if you screw it up, meh. Experiment with nutrient levels, do periodic flushing cycles. maybe run 1 day a week with just ph balanced water (6 ph)
you could also try using something more organic, masterblend is the opposite of organic. The only issue with using something more organic like fox farm big bloom is that it gets pretty nasty in a NFS setup. When i use it, i make a 5 gallon buck of it and water each plant by hand. Really im treating the soil (substrate) and not the plant.