How to Start Seeds in RockWool

How to Take Plants from Seed to System in Rockwool
Hoochos explores the worlds of Hydroponics, Aquaponics, Permaculture, Homesteading, Fermentation, Technology and DIY Builds to look at the world through a larger lens that can incorporate the best of everything into a rich and rewarding lifestyle.
Through self sufficiency we can reduce consumption and increase our hyperlocal household production.
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If you have personal queries about hydroponics or other matters please join me on Patreon for limited individual support or post in the Hoocho Reddit community or on the Hoocho’s facebook group and there are a lot of friendly helpful likeminded people that may have answers for you.
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Happy Hydroponicing!

[@derekgore1268]

Adding a 1% solution of fresh hydrogen peroxide to your initial water will improve your germination rate. It helps to break down the waxes on the seeds surface to let the moisture in. It will also help to kill any mold spores. Also, pouring a small amount of dry play sand or builders sand over the seeds will aid germination by ensuring the entire seed casing is kept moist. Keep up the entertaining vids Hoocho!

[@tulipsmoran5197]

sprinkling vermiculte is easier and just as effective in maintaining moisture around the seed case.

[@jeremycourt7008]

@@tulipsmoran5197 how is it easier?

[@kernalmustang260]

@@jeremycourt7008 Math hard, sprinkle easy

[@semosesam]

Thanks for putting such a complete guide together. It's really encouraging to see the whole process laid out so simply!

[@MadAcreFarms]

We are extremely new to this! Along with farming and gardening in general! This video is exactly what we needed!! By far your channel has been the best resource for us trying to learn the Hydroponics game!! 💯🌟🔥

[@braveladder1682]

All the time-lapse stuff is so wonderful. It really separates your channel from every other gardening channel on you tube. It must be a PITA but it really is great and very educational.

[@stevenharting]

The time lapses are great and so is the music in them… do you know what band it is?

[@Hoocho]

@@stevenharting King gizzard and the wizard lizard polygondwanaland

[@aminhamidi9006]

Hello, which density is better for plants?​@@Hoocho

[@tonysparapani3077]

Watching your video is a good use of time. I appreciate your content. It's one of the best I have seen on the tube

[@kallibar7514]

Thank you for the comprehensive overview and application of rock wool.

[@insected83]

The Hoocho beats have me in a tance every time

[@mikaelajm1]

Love your content!! To also have another Australian accent schooling me is nice 😂 the familiarity is soothing af- cheers hoocho! Your content is dead brilliant!

[@nickjones4752]

I use a wet toothpick for the smaller seeds. Works like a charm.

[@shepparo]

Thanks for putting in the energy to share your knowledge, this is a very helpful video...

[@jstutzmanman]

Great job Hoocho!

[@jamess1787]

Fyi, not sure if you've ever noticed it. But in your outdoor gardening videos, there is always some type of transcoding artifacting happening. That's to the downunda for some of the best gardening videos the internet has ever offered!

[@Hoocho]

Yeah it's something to do with Davinci Resolve not playing well with the codec, I've tried a lot of things to get rid of it and it still happens, I've invested in premiere, I just need to make the switch.

[@mking3219]

Good thing rockwool bats are at any home improvement shop now I knew about this since I was in construction Keep it up mate! Have a good one

[@Hoocho]

Make sure you contact the manufacturer and make sure they aren't treated with any harmful chemicals and that it is indeed the same material.

[@andrewperry8959]

You can use a strong drinking straw to take a plug out of the Rockpool cube - just twist it to bore in, and remove. Blow the plug out of the straw and then use the other end of the straw, cut at an angle, to easily drop the seed through the straw and into the hole.

[@randomnamehere1345]

Rockwool is basically insulation that's in your walls, you could probably damage your lungs that way

[@Prodaddyadventures]

Very informative. I really enjoyed watching your video.

[@paulwilson3434]

Love ❤️ you for generosity and gift of knowledge thank you. God bless you

[@harrymyhero]

Awesome video!

[@ReySantana_]

Amazing bro.. Thanks for sharing...

[@yvencia1150]

Thank you for sharing😊

[@hanstakani]

Just perfect!

[@Brabo1506]

Really love the channel and appreciate you sharing the knowledge!

[@joannekleehammer9841]

When I tap on the "How to make rockwool grow cubes for .25" link it brought me back to your initial video. Might you share that link again please? Just learning about rockwool. Thank you for such a detailed video.

[@SnakeAndTurtleQigong]

Diggin’ it!

[@wt6270]

Thanks for sharing, Hoocho! Cutting the cube smaller is a really cost-effective way for certain appraches like the NFT and the Dutch Bucket. But I'd imagine the limited water retention capacity makes it less suitable for other 'drier' approaches such as the flood-and-drain, unless there's other media such as coco coir added to surround the main root system. And in this case, it might make more sense to just start off the seedling in a sizable rockwool cube, like those seen in commercial tomato hydroponics.

[@Hoocho]

Flood and drain should provide enough water and nutrients if you're using hydroton without any extra rooting media.

[@plantdaddy109]

@@Hoocho Early on you’d probably need the flood to reach pretty darn high, close to the rockwool in that case, right?

[@DanDannyDanielleBob]

Nice! Have you tried the smart pot wicking seedling setups for automation? Is it possible to do something similar with your float box setup?

[@moniquebowen1597]

Hey, loving the cubes, so good. How do you stop algae growing in your pipe if you just drop those cubes in nft channel. There is a lot of light still getting in there?

[@lifeiseverything9]

I am just thinking of starting to gardening and looking for ideas 💡, thanks please l have a question can those rock blocks be planted on the soil on a pot , due to lack of space? Thanks 👍

[@marcusburnett22]

I’d love to hear about your experience with dropping the cube directly into the nft. I’ve seen netcups, noodles, your pucks, etc. Dropping them directly in seems like a great resource saver and time saver as you don’t have to have an intermediate system for root development when using net cups, nor do you have to transfer fragile seedlings. Any issues with flow? Any issues with less aeration due to fully saturated cubes? Any concerns that saturation of the cube defeats the purpose of n.F.t? Any feedback would be appreciated. Thanks and great work

[@SeamusHarper1234]

Haha, I just stick my zuccini and cucumber seeds into a rockwool cube, they make their own holes ;-) Also, it's so interesting seeing the awesome state that your plants are in and how much your flood deteriorated your garden.. Such a shame. I hope you guys are recovering well!

[@karlotto8925]

You could have a look at Dr. Kratky´s cut envelope seeder too. He made a video about it.

[@Murphyslawfarm]

G'day great video

[@toastiesburned9929]

You don't have to plug the hole with more rockwool. Just fluff the edge of the hole with your poker tool so light can't get in so easily. If you drop them on top, you either have to not let them get light when they germinate, or you have to give the un sprouted seeds light before they're ready. Unless you have a second humidity dome under the light and individually transfer them when they pop

[@Xiao_PP]

nice

[@angiechan516]

Hi Hoocho, how long shall we water the seedling? Thank you.

[@tonyodonnell9655]

Whenever I've used rockwool I've always had 100% failure. They germinate fine, but then it appears they 'drown'. Any ideas?

[@edgardls95]

Try giving them a light dunk, better to feed through the bottom than the top in the early stages

[@WolfWoman24]

​@@edgardls95thank you, I have the same problem as the OP.

[@Holdonjustoneminute]

Late reply but if you still need help, one piece of advice I can give is not to have the rockwool sitting in the bottom of the tray. Use the tray set that comes with individual cells, they are fairly inexpensive and reusable. Also if you’re using a plastic dome cover, remove it after the second set of leaves so that the rockwool can air out and dry up some.

[@chrisklein3093]

I have butter crunch that has grown up at least 1 to 2 inches but still no roots coming through the Rockwool . Should I be worried?

[@davehall3147]

Can you do a system on growing corn seed to growing

[@johnacosta5594]

Where can I get a brick of rock wool like yours

[@akris7752]

We need to adjust the HP for Rockwool method as well???

[@Turtle68427]

Where could I get that tray and humidity dome

[@jeffminton9267]

I just tried Rockwool for winter purslane, and they were so skinny, then died. Do you think I kept the Rockwool too moist that caused them to rot? I kept water in the bottom of the tray. Thanks

[@Shakingstevesallotment]

In uk, rockwall from building causes itchiness, is this the same stuff

[@sevenn7pure]

Do you not worry about the PH levels?

[@TheBaerserka]

if u do this profesional u take ph corrected water and soak the cubes 24 hours in it and u are right u dont need nutientsfor the first days but alot of plant are ok with 1.2 ec even from seed. If u take no nutrients u have the danger that u might be one day to late and it cost u a little time if u have to much nutrients at the start it can be realy bad :D

[@user-om3yk7fs7e]

if i have distilateed water 0PPM wich nutrinets(MINERALS) and how much ppm need buff rockwool and germination start to -first 5 day

[@2ForceCycles]

Jealous of your success! I'm trying buttercrunch and my leaves keep getting shriveled up. I have them 3 or 4 inches from a T5 and the rockwool is damp...

[@MCConfuz]

Who is this amazing music at about 11:00??

[@lucaschraner]

is it really possible to just put the seeds on top of the rockwool instead of bury them?

[@ccclaw13]

How often do you water after the initial soak?

[@topquark35]

I also would like to know, and also he said he would feed the ones in the tray some nutrients. Is it okay to just let them sit in the nutrient solution in the grow tray? until they soak them all up?

[@aphaseelec]

Is the light 100% necessary, can you just use natural sunlight

[@bearez1]

I throw so much Rockwood away at work from waste and useless cut offs. Didn't know you can use it for germination.

[@davidclark3147]

Damn dude you better get a Mask for that rockwool

[@CapricaSoul]

What is the temp you had them in when sprouting?

[@Hoocho]

It's mentioned in the video.

[@sidekick3rida]

I thought most seeds don't need light for germination

[@kennethwalker2496]

Bro your glitching the matrx 😂

[@Gembird75]

Hi! Is these rockwool cubes are simply construction rockwool, or agro rockwool?

[@TomasSandven]

Definitely not rockwool intended for isolation, those are often treated with resins to make them water resistant and more solid. You should probably only use rockwool specifically intended for growing.

[@Philmoon69]

where do you get your seeds please

[@Hoocho]

I save my lettuce seed. Let one go to seed, then dry the seed stalk in a bucket once it’s fluffy.

[@Lilljehook]

Is that safe?

[@hakajiru264]

Tasty baklava sprouts.

[@albadr2008]

Anyone saw sth moving behind the guy 13:23 😂

[@jessierana2059]

my seedlings are falling over after germination, can you let me know why this is happening? thank you

[@Juana4ev]

Your light is too far away from the plant so theyre growing leggy

[@leslieanne447]

Here I am trying to not hate rock wool.....

[@freddysart4005]

I cut my cubes to a 1/3. See what happens.

[@F4Insight-uq6nt]

Grow from proven reliable cuttings form mother plants. Growing crops from seeds is a waste of time and money. Grow the seeds to find the mother plants you want and clone from them. Y'know like Professional Growers do.

[@tisme13]

climate crisis ?? more like economic crisis... get better sponsors to keep things real...

[@sprat3222]

is it ok to have the rockwool sitting in a little water to avoid drying hoocho? or better to spray them when they look dry? im doing 60 tomato plants with this method but dont want to drown them. any advice would be much appreciated =) @Hoocho