How To Start Seeds In RockWool Cubes Indoors

[@urbanagmike]

Thanks for watching. Have any questions or advice you'd like to share, let us know in the comments! Get Your Free Seeding Density PDF (no info required) here: linktr.ee/rocmicro TIME-STAMPS: Intro To Rockwool: 0:14 What You'll Need: 0:55 Step 1 - Presoak Rockwool: 1:26 Step 2 - Plant Seeds 1:49 Step 3 - Cover With Vermiculite: 2:36 Step 4 - Water 2X Daily: 2:58 Do This Maintenance: 3:30 Update At 2-Weeks: 4:26 Step 5 - Results & Transplant: 6:47

[@tialevall9266]

Hello, Michael! Really enjoyed the video! Thanks for the PDF! Have a Blessed day!!!👍🙏❤😊

[@VerticalVictoryGarden]

Spinach used to be my biggest challenge. My trays looked like yours until I started to use cold stratification of a couple days in the fridge. Looking forward ti hear how you solve for your go to method on this crop over time. Nice content on this vid. Thanks for sharing.

[@urbanagmike]

Thanks for the comment and sharing your experience! I’ve heard of this and I’m going to look more into this. The other spinach did far better, I really thought that tray just wasn’t ventilated correctly.

[@BigFern9876]

Ok ok, I’ve subscribed to your channel. “Cold stratification” huh? Couple days in the fridge then what? Help…

[@josiahkulwa34]

Congratulations

[@Gaobdgao]

Can you please experiment red amaranth seeds on rockwool?

[@urbanagmike]

@@Gaobdgao Not a bad suggestion! Maybe I can do this. Thanks for the comment.

[@mslora710]

Hello, when seedlings are ready for planting, how do you get the out of the box?

[@urbanagmike]

You're basically reaching under slowly on the ends, and gently tearing off the squares! I usually do a row at a time. You can see this more in my transplanting video here: kzbin.info/www/bejne/ZqeUfWiqjJJjiJIsi=l2nVjzHF0ZX1YPMa&t=103

[@kat-or2ff]

Hello, can I ask how to get the PDS for the recommended amount of seeds for starting? I have started my first batch and they all pretty much failed and getting ready to start the second would like to see if my seed amount in each Rockwall is accurate. Thank you so much.

[@urbanagmike]

Hey! So sorry to hear that, the free PDF can be found by clicking the link in the description. No info or email needed, just on Google drive. Hope you crush the next round! Any other questions please let me know.

[@PlentyOfColor]

where do you recommend getting rock wool from? I see some can cause poor germination

[@urbanagmike]

I buy through Tower Farm, who's a distributor of a high quality rockwool made by Grodan. You can buy some off tower gardens website! I have a link in my bio. Thanks for watching and the comment.

[@letinaday3933]

❤

[@devonhouse356]

Hey Mike, thanks for the video! For microgreens, wouldn't you use a higher density of seeds (than in your guide)? Thanks in advance!

[@urbanagmike]

@@devonhouse356 Hi Devon. Yes you would use far more seeds, however Microgreens are grown in a standard potting soil like pro mix. These Rockwool sheets are for transplanting into my hydroponic towers. I don’t have any content about how to grow Microgreens yet unfortunately! Thanks for the comment and any other questions happy to help.

[@devonhouse356]

I'm thinking of trying microgreens in the tower garden! How many seeds do you think I should try? 20? 40? 😂

[@urbanagmike]

@@devonhouse356 Lol you know some people have done it in the high density towers. And that’s probably about the right amount!

[@heavenbound78]

hey mike, i didn’t see a propagation mat for the seedlings, is it necessary? great lights

[@urbanagmike]

@@heavenbound78 I do not use them! Never had an issue without one. That's my experience at least! Thanks for the comment. Any other Qs please let me know.

[@talktimewithcynthia5653]

If you don't have vermiculite, can you use dirt?

[@urbanagmike]

@@talktimewithcynthia5653 Yes; but it would need to be very fine dirt and I wouldn’t use much. Some don’t use vermiculite at all actually! Not necessary but should increase germination rates. Thanks for watching and the comment!

[@novafiddler1712]

looks like you didn't plant them deep enough? Also, try soaking your seeds in water/hydrogen peroxide (3%) mix which will soften the outer shell and sterilize the seed, rinse the seeds, then put them in the rockwool.

[@urbanagmike]

Are you talking about the spinach? The other two trays did far better! Definitely open to looking into what you’ve shared, appreciate it. Someone else mentioned cold stratification too.

[@stephanoskritikos8028]

Thank you for your advice. Yes, but you put only water or some other fertiliser into that ?

[@urbanagmike]

I'm using the nutrient water for my Tower Gardens, which uses a docetron to dose it. I'm sure it's a pretty standard mix, any nutrient fertilizer should help the lettuce take root and grow once it germinates!

[@PlentyOfColor]

Why 8 kale seeds?

[@urbanagmike]

@@PlentyOfColor It’s recommended to do 8 because these are going into a hydroponic set up and not all typically germinate. They can handle a higher density when others can’t. Thanks for watching and the comment. Any others Qs let me know!