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Thread: Seeds in Rockwool, I have no clue.

  1. #1
    Join Date
    Mar 2011

    Default Seeds in Rockwool, I have no clue.

    I recently got some of the smaller rockwool cubes used for seed germination. I stuck the seeds (lettuce) about an inch down and put some solid plant food over them. I then put some water on the rockwool (moistened it) and let them sit.

    After 5 days, most had sprouted.

    I repeated this process this week, and nothing. Not a single one. I am only letting them get 4-5 hours of sunlight a day.

    I know I am probably doing this all wrong. Is rockwool suitable? What variables would you recommend I change / what is a better way to start lettuce?

  2. #2
    Join Date
    Aug 2012


    just rockwool no plant food seedleings dont need it .its to soon to feed them

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