[genesis1_]

Ain’t 95 a little toasty?

[madman960]

Water temp should be 75-80. I will have to check. I just find it interesting that they continually sink and float.

[jmystro]

It’s the oxygen from the peroxide that’s ‘lightening’ up the water so the seeds float. They’ll sink right away in tap water.

[dBuds]

That’s not necessarily true at all. I’ve had seeds float in plain water just like I’ve had some sit low in a 2:1 mix of RO and 3% peroxide — it’s not the peroxide making them float, it’s just air trapped in the seed casing. You’re right about one thing though: peroxide boosts oxygen, and that’s great for early root development and faster germination.

[jmystro]

Sorry, I meant they’ll still float with the high oxygen levels even after their shell has cracked open. Of course they’ll sink in tap water once the shell allows moisture in and loses buoyancy.

[stanm]

I push the little f’ers under with my finger if I check and they’re not floating. 😄

[madman960]

These were bag seeds given to me 8 years ago. I am not to worried about them. I am going to plant them all later today and see what happens.

[genesis1_]

Ah yes gamba!

[madman960]

Lol. My favorite game.

[madman960]

I have half a bag of Wakefield bio char + compost + mycorrizal left from transplanting. I plan to try it for a seed starter. I have a 36 cell seed starter thing with a dome and it has the flexible pot out bottoms.

These are way old seeds. I want to see what happens with fresh seeds.

[genesis1_]

I have Dr Who bag seeds which I loved really good strain, and I have Trop Cherry bag seeds. They came from the same place, so chances are they are mixed with each other. I’ll pop em one day

[stanm]

I put each strain in separate solo cups with strain name written on them in a cabinet for 24 hours. I put some hydrogen pyroxide in the water as well.

If they are showing signs of germination I put them in a towel in a plastic bag. If they’re not showing signs of germination they usually will by 48 hours.

I’ll check the paper towels after another 24 until they develop a taproot then plant. The metal cabinet is whatever room temperature is. This works pretty much 100% with purchased seeds but you never know with older bag seeds.

Germination is easy and simple. My space is a garden, not an mf’in science lab so I just do what works.

[madman960]

I understand where you’re coming from. However, I am new and don’t have a proven system. Not everyone has 3d printers. I’m using it as a heating mat. I do things because I can. I like learning things and sharing what I learn. It is the only way I can give back to the community while I learn the ropes. I wish I would have started on the 3d printer straight away. I was not expecting the seeds to start on the bottom, then alternate between sinking and floating. I will enjoy watching for another few hours before I plant all the seeds. I already filled my 36 cell seed starter. I only have bout 20 seeds. I still need to moisten the media before planting.

[stanm]

You’re going to drive yourself mad if you put as much thought into the entire grow as germination.

I think the vast majority of scientific gardeners would cringe at the way I do things. That works for me.

[madman960]

This is just for fun and some knowledge for myself. If these were fresh seeds and not old bag seeds, they probably would have popped by now. I get where you’re coming from and mostly agree with you. Just doing this because I can. My newer seeds should arrive in the next couple days.

[dBuds]

Hydrogen peroxide is a game-changer for germination — extra oxygen boosts cell activity and helps soften the seed shell for faster, more reliable pops. I’ve been using it for over 10 years and it’s never let me down.

Here’s how I do it:

Soak seed for 24 hours in a 2:1 mix of reverse osmosis (RO) water to 3% hydrogen peroxide. Optional: add a drop or two of monosilicic acid (MSA) for extra root energy. pH to 6.2. Keep in the dark at 70-70f.

Paper towel method: After soaking, place the seeds between paper towels soaked in the same mix. Put that on a plate and slide it into a ziplock bag to retain humidity. Keep it in the dark, same temp 70-75f.

Wait: After 24–36 hours, taproots are usually ½ to ¾ inch long — perfect for planting.

Into soil: Pre-warm and pre-hydrate your soil. Temp around 80°F, RH 78–82%, light at ~250 PPFD.

This method gives me a 100% success rate — the trick is consistency and keeping that early environment dialed in.

• This reply was modified 1 week, 1 day ago by  dBuds.

[dBuds]

Also — once you drop the seeds in that water solution for the first day of soaking, don’t touch them. No need to poke, stir, or push them down. Just let them float and ride. They’ll sink when they’re ready (if they do) Everybody seems to overcomplicate one of the most basic steps in growing: germination. It’s a seed — it wants to sprout. Just give it the right environment and stop babysitting it. 😎

[dBuds]

OP, I think you’re talking about The Strain Show — great channel, I dig it, just like I love DGC. That said, both channels (in my opinion) give solid baseline info, but they don’t always dive deep into the why behind things. I watch them both regularly, but half the time I’m filling in the blanks myself. When you start understanding the mechanisms behind how these plants respond — not just what to do, but why it works — that’s when things really start clicking.

[madman960]

Yes, this is the video I watched. I just went a step further and added the heat. Any time I removed the jar from the heat, all the seeds immediately sunk. Put them on the heat, and they would float, then sink, then float again at random. I found it interesting so I made the post. I have all 24 seeds in a propagation tray now. None popped yet but it’s only been about 15 hours. I have the prop tray on the 3d printer at 38C.

[scrog-mcdank]

And I thought I was fancy with my

Paper towels, propagation tray with humidity lid and seedling warmer mat. I am trying to do things these days with less and less steps/time invested (2 kids running around etc) I seriously think I’m gonna just start dropping my beans into soil or coco and not bothering even popping them first.

[madman960]

I have never done this. It is more because I can and have nothing better to do. I have 6 clones going, and waiting for my order of seeds. Was an issue at the supplier but it has been resolved. Should have my seeds by the end of the week. 10 auto Pink Runtz seeds, 5 Willy’s Wonder photo, and 3 White Widow photo. Plan to pop 3 of each. Just going to float them in 1% hydrogen peroxide for 24 hours and straight to soil. I typically just use plain water.

[stanm]

I have popped them in paper towels, used trays with cubes, and planted directly in soil both final pot and solo cups. My first successful germination was in 1971 when I threw a handful of seeds from a bag of brick weed out the back door.

These seeds are pretty resilient. They were made specifically for the purpose of germination. 🙂

[jiimii]

I`ve been using this for a few months and have had 100% success rate. Toss the paper towels and baggies.

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• This reply was modified 1 week, 1 day ago by  jiimii.

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[madman960]

I can just 3d print one similar. I just use my 3d printers as heat mats as I have very good control over temps. I can go from 0C-100C. It is a very nice option.

[stanm]

The purpose made heat mats along with a thermostat and probe work great. I use a tray, dome and T5 to start them in solo cups and keep temp humidity in range. I mentioned this because I’m that guy who would knock something over by accident and ruin my printer. No worries if you’re not as clumsy as I am.