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marijuana seed germination rockwool

Do not add any nutrients to your Rockwool Cubes. The one on the left got nutrients, the other two did not.

Now, if you can, place them in a tray with a dome on it. This will help create a little humidity in there which seedlings like. This is not mandatory, but it helps. Whichever you choose, take your cubes and put them in a cool dark place, and leave them alone. The temperature should be roughly 68 degrees F, though my house stays at about 72 and they do fine there. I usually place them above my refrigerator and just leave them for a day or two. My lettuce seedlings sprouted with a quickness the last time I tried, and by the 3rdday they had grown so tall that I had to take the plastic dome off of my container because they were bumping up against the ceiling.

Depending on how hot it is (and other factors) you may need to water your cubes 1-4 times a day. Use the Ph adjusted water when doing so (that’s why I had you save the leftovers from step 2). If you already threw that water out, go make another batch of Ph adjusted water and keep it in a separate bottle or container for watering. Note: Do not over water, in fact while some say to water 1-4 times a day, I did it only once a day when I got home after work.

Important: Do not let the PH of the water go below 5. A Ph this low will damage the fibers of the Rockwool Cube

In this lesson, we will learn how to start your own seed with Rockwool Cubes. Below is a detailed guide to success with Rockwool, and a step-by-step video tutorial can be found at the bottom of the page.

They should look like this:

Here is what it should look like:

If you put more than one seed in your cube (just in case one didn’t make it), than you probably have several seeds sprouting up in each cube at the end of

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seedlings in them you would not have to water for about a week maybe longer.

Humboldt14

seedlings in them you would not have to water for about a week maybe longer.

you dont use a humidity dome for starting seeds and second rockwool cubes will not dry out. they retain allot of water, and with

i have a Hydro set up also so i have been starting seedlings in rockwool for years.

The media should be totally damp, but not soaking wet.

If you don’t have precision temperature control where your seeds are germinating and temps are too cool, you could use a seedling heat mat.

The simplest methods that work well are always the best methods.

Don’t Drown Your Cannabis Seeds

Look here for detailed information that helps you germinate marijuana seeds using rockwool cubes.

The rockwool cube, soil, soilless mix, or coco that you germinate marijuana seeds in shouldn’t be soaking wet.

The best depth for planting marijuana seed is 3/8 th to ½ inch below the surface line.

As soon as your seeds germinate, put them under a Hortilux PowerVeg lighting fixture, or some other T-5 or low-power LED, for at least 2-3 weeks until you’re sure your seedlings’ root systems and leaf structures can handle full HID, LED, or sunlight.