When do I begin feeding nutrients to seedlings in rockwool cubes
- Thread starter 88WW
- Start date
I didn't not do rockwoll but do grow in a soil-less mix with no nutritional value. I begin feeding from the moment they break ground. Just go easy on the nutes and slowly increase the feed rate every 5 days to a week as they get bigger.
hjayu94
Well-Known Member
Ohh how I wanted to post... "Depends what you're growing them in" hahaha 
Just kidding of course. (Related to other thread conversation)
Looking good so far. Sorry can't offer help with rockwool. Should get lots!
Just kidding of course. (Related to other thread conversation)Looking good so far. Sorry can't offer help with rockwool. Should get lots!
Barney86
Well-Known Member
They'll start turning yellow in 2 or 3 days mate. I'd get feeding them now. Just go easy though. 100-200ppm at pH 5.5-5.7 will keep them happy for the next couple weeks. Keep the cubes moist but not wet and don't let them dry out. Wanna keep em like 30-40% wet if you can. Easiest to use a spray bottle.Half way through day 3 of white widow feminized poping out of the rockwoll 18/6 light cycle.
They all have tiny real leaf already. Is it still too early to feed nutrients?
- Thread starter
- #5
Thanks for the heads up!
Yes have been using a spray bottle only so far.
I have then below 40% saturation.
So this is my first time ever using nutrients.
Using emerald harvest
The manufacturer recommends 2.0ml each for seedlings. Will that be more then 200ppm?
Is it too early for Cal Mag?
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