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starting cannabis seeds in rapid rooters

Rooters/plant plugs are awesome for cuttings, but for Cannabis seeds it only seems like a slight step up from paper towels to me.

They are under 2 23w CFL’s.

Is this going to work?

Okay so I placed my seeds in water until they sank, but I also turned on a heater on the containers to get them hot (no heating pad).. the water got pretty hot for about an hour. Could that have been bad for the seed first off/killed them.


2-3) inches. For this reason, and to prevent the media from drying out very quickly, it is recommended to start seeds in a container at least 3.5-4 inches deep. This way the tap root has sufficient room to stretch out from the outset. The seedlings also wont have to be handled so much. You can use Rooters to germ Cannabis seeds, but you’re going to want to transplant them into a larger container relatively soon after they sprout. Right after they sprout you should see a taproot hanging out of the plug, which isn’t really a good thing.

The seeds cracked so I placed them in damp paper towel in an enclosed tupperware bin. The tails haven’t showed yet (could they be dead) It has been two days.

I placed them in small rapid rooter plugs (dunked them in 6.0ph water then rang them out) and put a small humidity dome over the top.


Also cut off a small piece of the plug and gently placed over the holes.

Finally I have never had to use a dome to germinate Cannabis seeds, and I know at least one of the breeders of a few strains I have grown specifically advise against using a dome, or paper towels. High humidityconstant moisture increases the risk of damping off diseases, various plant pathogens which can kill seedlings and prefer different temperatures. The media just has to be moist for the seed to germinate. Relatively freshhealthy Cannabis seeds (less than a few years old) should germinate easily without the need for soaking.

Starting cannabis seeds in rapid rooters

Make sure to always keep the Rapid Rooter moist but not soaking wet and give plain water.

If you have a root that is curved or bent, don’t try to straighten it out. Open the Rapid Rooter and lay the germinated seed down gently. It will naturally lay on its flattest side. When you slowly close the Rapid Rooter, the bent parts of the root will end up in the “crack” of the Rapid Rooter that you cut to split it open from the side.

1.) Get Cannabis Seeds

Sometimes a “film” from inside the shell gets stuck on the leaves. If that happens, try putting a drop of water on the film a few times a day to soften it. If the seedling doesn’t push it off on its own, hold the stem between your fingers (so it doesn’t pull at the root) and use tweezers to gently tug at the membrane and release the leaves.

Paper Towel Method – Place your seeds inside a folded wet paper towel (Important: use cheap brand!)

2.) Prepare Your Soil or Coco Containers

If seeds sprout, but then stop growing…

Starting cannabis seeds in rapid rooters

I had 14 Tutankhamen seeds and i only got 7 full developments. the others rotted and died.

i develop a tap root first by putting them in a wet paper towel and then into a ziplock back (to hold the moisture in). Once a tap root is developed, i place them root-down carefully into the plugs about 1/4" down. Then i break off a tiny piece from the corner of the plug and gently stuff the hole [you put the seed in] so that no light gets to it. Depending on how strong the seed is from the beginning will determine if it continues it’s life cycle.

afterwards, make sure your plugs stay moist but not soaked all the time.

If you used the starter tray that comes wrapped in the plastic, i might suggest using a hair dryer to the sides of the tray to bring the ‘bow’ out of them so when you use a humidity dome, the moisture doesn’t leak out and takes longer for the seedlings to mature.