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How I sprout seeds in paper towel.

Weasel

New member
Here is how I sprout in paper towel. Most of the details aren't important- only temps and humidity really. A lot of people sprout this way. A lot of people sprout other ways...

First- choose some seeds. I want to sprout seven new strains today. Most of these plants will be going into the auto-watered section of my flowering room. This part of the grow is a DTW (drain to waste) hydro setup where I grow smallish one-off plants to try new strains, mostly just for fun. I don't veg them long enough to get a clone off of them. So if I find something special, I have to either try to reveg it, plant/order more seeds of that strain, or (most often) just wish regretfully that I'd cloned it. So I will be choosing six seeds for this that seem interesting. The DTW area is where I use up weird seeds, mystery seeds, freebies, and stuff I wouldn't get around to growing otherwise.

The main part of my grow is larger plants in sunshine mix, using mostly ten gallon pots. Those strains are the proven keepers, which I clone and reveg and keep going over years.

Because the DTW plants will be all fed from one reservoir- it's very helpful if the selected strains have roughly the same nutrient needs and a similar flowering time.

None of this has anything to do with what you, personally, need to know to sprout seeds in paper towel, lol. It's just me blathering -documenting my process.

Ok-this is what I've chosen (second pic down there somewhere*). The Chocolate Mint is one I've heard enough good things about that I'm going to assume it will be a keeper, and it will be vegged longer and cloned.

The other six, for the DTW, are mostly heavy indica strains. Dark Angel, Afghan, Afghan x Black Dominica, Nicole Kush x Morocco, Strawberry Blue, and a sort of mystery seed from one of my Critical Cheese plants. I'm pretty sure it's a cross of the Cheese and a Thai Stick plant, which means it's definitely not as indica as the rest but wtf I'll throw it in.

I put each seed in a labelled fold of paper towel. In this case I made small 'bags' by taping the folded paper towel together. After the paper towel is moistened the seeds will be unlikely to roll out.
I get a container with a lid, like the tupperware variety. Put a layer of paper towel on the bottom. Dribble just a little water on to the paper towel until it's damp. Not to the point that it's completely soaked or there is any water pooling in the bottom of the container.
I could be using seven separate small labelled containers which in some ways would be smarter and save the risk of mix ups, but I'm feeling lazy.
This is sort of a weird container. I'd usually use one with lower sides (less air space to keep humid). But it's all I see around right now and will work fine.
Put the folded packets in there and sprinkle just a little more water around till they're damp as well. A spray bottle would work well for this.
Seal the lid.
Put it in a warm spot. Somewhere on the warm side of room temp - like 25°C/ 75-80°F (I'm guessing). Ok I'll throw a thermometer in and see what the actual temps are.
I'll report back tomorrow. After 24 hours most should be starting to sprout. By 48 hours the rest should have sprouted unless they are duds or unusually slow.


Almost none of the details of this post matter, except that you want your seeds to be in a warm and humid environment. These are the relevant factors that sprout all seeds. There are too many variations on the theme to list, but temps and RH are what matter.

I don't like sprouting in the pot because I've personally had less success with it, and mainly because I like to know for sure whether or not they sprouted before I plant them. But many people do plant directly, and get perfect success with it.

It took an hour to organize this post. The last pic is of the container after this time. Humid. Could be a little warmer.
Will update tomorrow.

* I do hope that someday on this forum we will be able to embed our photos where we want in our posts, so that texts and pics be viewed in linear fashion like almost all other websites. Or maybe I jus haven't found out how to do that yet. For now it will have to be just text, with a jumble of photos down at the bottom

it was a real wrestling match with the site trying to upload pics and get the post to work, but I understand it's a work in progress and maybe not very iPhone friendly. ;)

Plus - I'm sorry the seeds pic somehow got reduced in quality so it's hard to read the labels. Not sure what happened there.
 

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Thanks insomniaczzz. I'll report back tomorrow, and again the next day. How to sprout seeds is a question that seems to come up over and over, and this is an easy and obvious way. No need to make things complicated and float seeds in water or any of that jazz. If my seeds don't sprout this way I can be sure that they weren't going to sprout anyway.
Could have made the post about 1/20th as long but where's the fun in that.
 
Dude...instead of hitting camera icon...hit the icon left of the A ...the tag looking thing....then follow prompts...ending with hitting medium...

Check it out...you'll see
 
Green 75. Tried it. Thanks!!! I would try to go back and rearrange the original post, but the pics aren't really important anyway for this one so I'll leave it as is.
That's a real relief.
It makes posts surprisingly boring when you can't put pictures in with the text and they're all lumped at the bottom like that.

Mcruderalis- have you ever tested to see if it makes a difference whether you soak them first or just put them straight in the containers? I've never tried soaking seeds - I wonder if it speeds things up or if it's just the same as being in 100% RH.
Sounds like a nice system- especially like the color coding and if I ever make it to a store I'll try and find more small containers cause I'm constantly filling them up with seeds and dope ;)
Truth be told I usually don't bother to take the extra seconds to make little paper towel envelopes and stuff - just toss each seed in its own container sort of tucked into a fold of crumpled paper towel, with the seed package in there as well if it's a single. Slam on the lid and wait a day or two. That's all there is to it.

I killed my share in the early days
 
Thanks. I actually found another tupperware full of different seeds I'd forgotten about just after I took the photo but was too lazy to spread them all out again- that's where I found the Critical Cheese seed ;) I used to have a lot more seeds, most of which I knew I would never grow. The DTW setup has made a big dent in them and it's a ton of fun growing one-off plants like that. Before that I felt the need to document and save different phenos, clone everything before flowering it out, etc. Kind of makes it feel like work and takes the fun out of trying new strains which is why I knew I'd never use up the oddball seeds or the ones that seemed just middle of the road.
Thanks for the thoughts on the peroxide. I haven't had many rotting issues but it seems like it would be an easy precaution to take.
 
Ok here are the seeds after 24 hours (roughly). Scuse the messy jumble.

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Thanks again Green75 for helping me figure out how to insert photos.

So three have sprouted and 4 haven't, which is a little slower than normal but it's a horribly cold winter outside right now and my sprouting spot seems cooler than usual. I moved the container to a warmer spot this morning which brought it up to about 80°, which feels right to me (I've never actually checked my sprouting temps before- I just go by feel.)
The Chocolate Mint is ahead by a mile. That one and the Strawberry Blue are the two I'm most interested in so I'm happy they both sprouted. I'll go plant the three sprouts now. Hopefully the rest will pop soon or I'll have to run around wringing my hands and saying "Well- it usually works".
 
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Ok here are the seeds after 48 hours.
IMG_6296.JPG
Only the Afghan x Black Dominica seeds has sprouted. The rest are staying put and I don't have much hope for them at this point so I will start three replacements. This is the worst germination rate I've had in memory. Granted my memory isn't all that great, but still- this is very unusual.

There is a clear lesson in this. Seeds are very shy. Whatever you do, do not post their germination progress on the internet. They will know. And they will stay within their shells and not come out.
 
Yeah that's generally what I do too Joe. I figure the details aren't really important as long as the basics are covered.
 
Rapid rooter or root riot
just my rec. as it always works if seeds r good.
dont need to complicate the relationship
 
Yeah Tika. I think any method that keeps temps and humidity in the proper range will always work for viable seeds, barring a few special cases like very old seeds that need to be specially treated. I'll just treat these seeds as duds or assume that the process was messed up by the first night in the sprouter when temps were cooler than I would have liked.
I've been sprouting seeds this way for many years with near perfect germination rates. Some of the seeds shown in my first picture are over ten years old and still sprout fine. I keep them in the freezer.
 
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The replacements sprouted as of this morn. I threw in two of the PCxMT because those seeds are several years old and have spent much of their time on the shelf instead of in the freezer where they should have been. I've never tried sprouting this cross before so was expecting possible duds.
This time I didn't make the mistake of letting them know I was going to post their birth on the internet.
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Miraculously, after 4 1/2 days, the Critical Cheese bagseed decides to show. I would have thrown it out already a day or two ago if it wasn't for the fact that I may have put my non-existent forum reputation on the line by making this thread about how to sprout seeds and then they didn't sprout...
The remaining two from the first batch haven't budged so it's 9 out of 11 at this point. I was expecting 100% but that's ok. Got the plants I need for another round.
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