Planted Cannabis Seed Too Deep

Cannabis seeds are very easy to germinate, within a few days after being exposed to water, and warmth, most seeds would have germinated. After a week, if your Hey so I planted about 10 seeds 5 days ago, all were rooted aleast 1/4 or an ich to a 1/2 an inch.. So when I planted these seeds, I planted them all about… Here is my timeline. I germinated three seeds on Dec 9th. They all sprouted in 48hrs and I put them in solo cups. Two are now already out with a set of embryo

Cannabis Seed isn’t Germinating

Cannabis seeds are very easy to germinate, within a few days after being exposed to water, and warmth, most seeds would have germinated. After a week, if your cannabis seed isn’t germinating, there may be problems. There could be a few reasons why your cannabis seed isn’t germinating, in this guide we will discuss why your seed hasn’t germinated, and ways you can get it started. By the end of the guide, you should be able to pop that stubborn seed, and see signs of your plant growing within a week! Good luck!

Contents

Germinating Cannabis seeds

Germinating cannabis seeds is relatively easy, as long as you know what you’re doing. Providing the seed with the optimal conditions will improve your chances of a successful germination, so you waste less seeds. This guide is on what to do when a cannabis seed isn’t germinating. The first thing you can do is make sure you have germinated your cannabis seeds correctly. You can watch this tutorial video from Percys Grow Room. It will tell you everything you need to know about germinating cannabis seeds correctly. If you have used these techniques, and still, you have no success with your seed, then we can move onto other methods. To know what the problem is, it is good to understand possible reasons why a cannabis seed doesn’t germinate.

Why your Cannabis seed isn’t germinating

95% of the time, cannabis seeds will germinate easily, and quickly, just by adding some water, and some warmth. A seed can germinate and show a shoot above ground in just a few days. At the most it should take no longer than a week for a cannabis seed to germinate, and show signs of shoot above the medium, if you do not see a shoot after this long, there may be a problem. There can be a number of reasons why cannabis seed isn’t germinating, let’s explore some of them.

Genetics

Genetics is half the battle towards a good crop. This can’t be stressed enough, though you can get good plants from random genetics, buying good quality seeds from good seed banks will increase your chances of germination, and a quality end product. Some growers may be tempted to use seeds they found in a bag of cannabis they bought from somewhere. These seeds may not germinate at all, they may be infertile, or if it does grow, it could grow into a hermaphrodite cannabis plant. Improve the chances of your seeds germinating by buying good genetics. You won’t regret it!

Age of the seed

Inside of a cannabis seed there are some stored up nutrients. When a seed gets wet, a small amount of water will make its way inside, and this is a signal for the plant to begin germination. These food stores can become less and less nutritious as time goes on, and if cannabis seeds are not stored correctly, these stores can be used up, without the seed germinating at all. Your seed will need this food store to grow a tap root, and push a shoot above the medium, if it is used up, your seed isn’t viable, and it will not germinate.

Thick shell

The Older a seed is, the harder the outer casing will be. So, if you know your seed is old, you should soak it for a little longer before planting it to soften the shell a little. This will make it easier for the tap root to get out and start to grow.

Incorrect storage methods

If a cannabis seed is stored incorrectly, they will lose viability. To keep cannabis seeds viable for longer, they need to be stored correctly. Incorrect storage is a big factor in germination, and could be the reason why your cannabis seed isn’t germinating. Cool temperature between 5 and 10°c and humidity levels no higher than 25% is a great way to store your cannabis seeds. A dark cool place with very few temperature fluctuations is ideal. A refrigerator is perfect, but do not use refrigerator that you use often. Opening and closing the door will change the environment in the fridge. A stable environment is what a cannabis seed needs. If they have been stored incorrectly, they may not germinate at all. Store your seeds in a light proof container, in the back of the fridge, and your seeds could stay viable for years.

Left underwater for too long

Some growers like to soak their cannabis seeds in water before germinating them. This softens the shell, and prepares the seed for planting. If the shell is soft, the tap root will not have to work so hard to push its way outwards. The seed is placed in a glass of water, and usually, the grower waits until the seed sinks before planting. But this can be a problem. A Cannabis seed needs air to breath, and once the seed has fully submerged it cannot get air any more. This can kill a seed, as it can drown. Do not leave your seeds fully submerged for more than a couple of hours. Once they sink move them into paper towels or your chosen medium.

Planted too deep

Don’t plant seeds too deep! A seedling will only have a certain amount of energy it can use. To make its food, it needs light. Whilst a seed is underground, it will get no light, and without it, the plant cannot photosynthesize and make the food it needs to grow. If you plant your seed too deep, it will not have the energy it needs to break through the surface. Plant cannabis seeds about 1/2″ deep (2-3 cm) and this will give them plenty of room to grow a tap root, and then shoot above the surface. Planting your seed to deep may be the reason why your cannabis seed isn’t germinating

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Too much nutrients in the medium

Sometimes, cannabis seed will germinate beneath the medium, and of course, you will not see it. The tap root will grow and come into contact with the medium. If the medium has a lot of food in it, it can severely shock your seedling and it can kill it. When you are germinating cannabis seeds, be light on the nutrients, and if you’re planting into soil, make sure you’re using a potting mix. A potting mix will have less nutrients in it than normal soils, and this can be better for young plant to grow into, before moving them into strong mediums.

What to do when a Cannabis seed isn’t germinating

After you have tried to germinate your cannabis seed, but had no success, you shouldn’t just give up there. There are ways you can still get your cannabis seed to germinate, it may just take a little more work. The main objective is to soften the shell, and provide the tap root with as much help as possible it is emerging from the seed. Sometimes all it takes is a slight break in the shell, and the seed can germinate.

Soak the seed with H²O²

If you’re seeds are old, you may want to do this on the initial soaking, before you try germinate your seeds, but it is also a great method to try and crack stubborn seeds. H²O² will make the water a little more reactive, but only use a few drops in a glass. Hydrogen Peroxide will help soften the shell, making it easier for water to get inside the shell, and for the tap root to emerge.

Add some microbes to the seed

Roots love microbes! If your cannabis seed isn’t germinating, try rolling it in a rooting power and plant it again. When exposed to moisture these powders will begin to grow colonies of friendly bacteria that works in conjunction with the root zone. These can help soften the shell, and produce some nutrients for when the tap root emerges from the seed. If your cannabis seed isn’t germinating, some beneficial bacteria can be very helpful.

Fulvic Acid

Using 2.5ml per cup of water of fulvic acid can also help weaken the shell of your seed and help it germinate. Fulvic acid is an organic acid, that is found in soils, and comes from the decomposition of organic matter. This will help break down the outer shell of your seed, as the organic molecules break down the casing.

Carbonated Water

Carbonate water has CO°2 dissolved into it. This takes it from being still water to being fizzy. The bubbles in carbonated drinks are formed on nucleation sites. This is where the CO²2 can latch onto a place, and turn into a bubble. The bubbles then form and float up through the water. This makes the water more reactive, and can help soften the shell of your seed if it isn’t germinating.

Last resorts

If none of the above techniques have worked for you, there are some last resorts you can turn to if your cannabis seed isn’t germinating. These are harsh, but they can work, you just have to be gentle. The whole idea of these techniques is to either soften or crack the shell, so water can get into the seed, and the tap root can get out. This can be difficult if the seed is old, or has been stored incorrectly, so we have to give it a helping hand sometimes.

Sandpaper

Take some sandpaper, of a very fine grain, and gently scuff at the outer shell of your seed. Now be careful, you’re not trying to removing the whole layer of the seed. Just scuff the surface in a few places, and begin the germination method again. This will weaken areas of the seed, which can now be softened and penetrated by the water. But sometimes this still isn’t enough. You can also use a nail file to scuff the edge of your seed, just make sure its fine grain as you do not want to remove big pieces of shell.

Cracking the shell

The very last case scenario, and your last resort is to actually crack the seed manually. This can be done by holding the seed between your finger and thumb, and using your other hand to pick of a bit of the casing with your thumb nail. By putting a small crack in the seed, you can be sure water will get in, and the germination process should begin. Do not soak the seed for too long, and it may be better to go straight into the medium after you have cracked the seed. Too much water can drown it, and you don’t want to kill your seed after going through all this trouble to germinate it.

Final thoughts on Cannabis seeds that won’t germinate

If your cannabis seed isn’t germinating, then you should just be a little more patient, most of the time, they will pop without any extra help, they just need a couple more days. If you have waited for longer than a week, than you should start using these methods. Buy your seeds from a seed bank with a good reputation, and your seed should germinate first time every time, as long as you germinate them correctly. Thanks for reading! Stay safe, and happy growing More news in Soft Secrets about Preparing your seeds for Spring

What if my seeds are burried too deep?

Hey so I planted about 10 seeds 5 days ago, all were rooted aleast 1/4 or an ich to a 1/2 an inch.. So when I planted these seeds, I planted them all about 1 inch to 1 and a half inch down in the soil. 5 of the seeds are under a 24 hour light in my closet and the other 5 are in sunlight in a window that should get about 12 hours of sunlight. None of them have sprouted out of the ground yet, and I actually dug up 2 and I could not find the seed. wtf. What I am afraid of is that they all have sprouted the leaves but then died because the leaves were sprouted underground. I am not sure if this a possibility, or if plants are smart enough to keep growing till they break ground. So are my plants going to die or will they just not have enough energy to fully sprout. Please give any info possible thanks!

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stuckonsticky
Well-Known Member

The leaf won’t grow and die under there an inch ismt all that deep..i put mine like pencil eraser deep. ..You should make sure the seeds are developed fully before planting..white seeds tend to not grow..immature. .Tiger striped and brown with black spots are what to look for. plant seeds and usually two to seven days and they’re all up. what did you plant em in?
Some people like to put the seeds in a wet paper towel in the dark and once they pop open they get planted

dannyboy602
Well-Known Member

The rule of thumb for planting seeds is: four times the width of the seed. So plant MJ seeds about 1/4″ deep, with no light cuz they don’t need it yet and you run the risk of drying out the soil and killing the little sprout before it even pops up.

soursmoke
Member
Alborosie
Active Member

the best thing to do if you have nice seeds , put them in wet paper towel keep it humid , after 1 week the first leaves will come out and thats the time you put it in soil

Alborosie
Active Member
TheFaintingGoat
Well-Known Member

None of them have sprouted out of the ground yet, and I actually dug up 2 and I could not find the seed. !

OH MAN. Very common rookie mistake. You are not the first to say that, heck, I’ve done it myself. Trust me, those seeds did not disappear. And by digging around, you dry out the soil at the top, and if you shifted the seed to the top, it will never grow because of no moisture, hence you think it’s a bunk seed, or just vanished. Give up to 7 days. And seeds that get planted an inch too deep WILL make their way out. They literally reach out of the soil looking for light. I speak from experience.

What Dannyboy said is true. And most importantly, BE PATIENT. It’s not uncommon to have a seed suddenly show itself over a week later.

dirtysnowball
Well-Known Member

i’ve had a seed pop a month later lol. its shell was too thick and it too a long time to get moistened. if you want the to pop earlier soak the in water for 12-24hrs

beginner.legal.growop
Well-Known Member

Yes I germinated them, I soaked them in water and then put em in paper towels till the root was sprouted about maybe a 1/4 of an inch out, some were a little more, some were a little less. All I know is I buried them way more than a pencil eraser. Like i buried them an inch deep maybe more. a little more than a pencil eraser (considering i used a pencil to make the hole for the seed, hahah. None have sprouted (there are 10) its been 5 full days now.

Luckily when I inspected them I only shifted through 2 of the seeds soil, so I would not mess them all up. I am keeping the soil wet, pretty much when the top layer begins to harden I spray water.

So funny thing is about 20 minutes ago when I checked the little suckers NONE were sprouted AT ALL. and now I go back to add water and wtf. hahah 2 little mofo seeds are NOW popped out of the ground. very happy! I hope the rest come soon!

Izoc666
Well-Known Member

man just be patient !! all seeds have their time to sprout out. i usually throw away if its already past 10 days. but i always mist the top of the soilless to keep moist all the time, till you see sprout.

beginner.legal.growop
Well-Known Member
soursmoke
Member
beginner.legal.growop
Well-Known Member

Will a 250 watt mercury bulb kill it. or no? Because I know mercury bulbs give off a lot more lumens. Its a Mercury or a mercury HID bulb.

soursmoke
Member

Never heard of mercury bulbs.. MH & HPS are the best but you should buy both MH for veg & HPS for flowering
which aint cheap i would go with T-5 lights which are high output lights and work very well i paid 200.00 for my set.

ClosetSafe
Active Member

Mercury vapor is mostly green light. Which is mostly reflected by green plants.

Planted my seed too deep – now what?

Here is my timeline. I germinated three seeds on Dec 9th. They all sprouted in 48hrs and I put them in solo cups. Two are now already out with a set of embryo leaves and first pair ir serrated leaves. The third one is hesitating. I know I planted them one knuckle deep. Maybe the third one was accidentally put deeper, I am not sure. I carefully scraped a little of the top soil and now I can see a tiny portion of the sprout. Gotta say this third seed was slightly sluggish sprouting.

What to do next? Wait with fingers croseed? Soil is nice and moist, temps are around 75deg, rhd around 34.

Thanks for any help.

  • Join Date: Sep 2016
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are all three the same strain? if so might might just be a slower or bad seed. all you can do at this point is wait and see. i wouldn’t abort just yet.

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  • Join Date: Aug 2018
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  • Join Date: Sep 2018
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Here is my timeline. I germinated three seeds on Dec 9th. They all sprouted in 48hrs and I put them in solo cups. Two are now already out with a set of embryo leaves and first pair ir serrated leaves. The third one is hesitating. I know I planted them one knuckle deep. Maybe the third one was accidentally put deeper, I am not sure. I carefully scraped a little of the top soil and now I can see a tiny portion of the sprout. Gotta say this third seed was slightly sluggish sprouting.

What to do next? Wait with fingers croseed? Soil is nice and moist, temps are around 75deg, rhd around 34.

Thanks for any help.

I just germinated some beans on Dec 1, started with a 6 hour soak, then placed in the paper towel method suggested by Nebula. They took 2 to 3 days after being placed in the towel for 80% germination success.

The seeds germinated about 1/4 to 1/2 inch, you know when the tap root starts to grow out. This is when they were placed in the rapid rooter plug. The plug has about a 1/2 inch hole and I just dropped it in and covered it with a pinch, it then took about 2 days to grow out.

Note it may take a bit longer if you put the seed in upside down and it has to turn around.

The actual time line was from Dec 1 to Dec 6 when they where popping up. Your mileage may differ.

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  • Join Date: Oct 2018
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Of course I won’t be tossing it out just yet. It is just this my first actual grow and I sometimes get a little impatient and I am constantly thinking that maybe each day I will be witnessing some radical changes.

Yes, I opted for two different strains – 2 seeds of Northern Lights and 1 seed of Aurora Indica. Both from Nirvana seeds. The AI was slower to sprout, plus the seeds are almost 30% bigger than NL’s. It might also be an unfortunate pick and this AI is a slow grower.

Both NL’s are out catching light now. Waiting for the AI. Gotta say one of the NL’s was really a champ, from seed to seedling in 5 days! The other one is 2 days behind.

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  • Join Date: Oct 2018
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Oh yes, I immediately put the dome over them. Luckily I keep solo cups on my propagators base to keep things neat. Spray-misted the dome heavily. Vents open or not? How long should I leave the dome on? Until second, maybe third set of leaves?

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can you get a small hygrometer under the dome to monitor RH? adjust the vents to maintain around 70-80%

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I’m going to break ranks here, as you already have a root-

It needs to search out water and keeping it too moist – is just setting it up to dampen off.
A tap root has the ability to provide what your seedling needs and spraying/doming will hinder this.

I provide about a teaspooon of water once a seed breaks ground and then let it dry out around the stalk (about 4-5 days). Then I water the dripline.

I spray clones to keep alive until roots grow into the soil, but never spray seeds, except to remove helmet after a couple of days topside.

It’s all bullshit – until you smoke it!

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  • Join Date: Oct 2018
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Removed the dome.

My substrate is coco. New to coco too, so I am just keeping it somehow moist. One day before planting germinated seeds I moistened each container and drained them overnight. Yesterday they seemed a little dry on top and I watered some more, but no runoff. It was like the amount of a shot glass for each plant, only pouring water in circumference and not actually in the middle of the pot.

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Hey getrag _ I watered the seedling with a mild solution of 202 EC and Ph of 6.0 from the very beginning. I buffered the Coco prior to planting but I only water the rapid rooter plug for two days with a few cc of solution, then I soaked the surrounding Coco on day 3 and have been watering with run off each time on a every other day. They are now moving to 3 gallon smart pot and have four nodes on about day 10 after they broke ground.

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  • Join Date: Oct 2018
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My Aurora Indica is still struggling. I narrowed it down to one possible cause – when I germinated the seeds, this AI was a bit slower and was only showing a tip out of the shell, but not the whole tail. It looks like I have planted it in reverse and it had to turn around. I dug it out carefully and the end of the root with new shoots was actually hook-shaped so it was trying to grow in itself. I carefully repotted it and tried to keep it straight.

See picture for the state she is in for 4 days now. The other two are alive and strong. Growing 1/4 inch in height every day, the leaves are also bigger every day, a second set will soon follow.

What is my best option?

1. Leave as is and toss it if it doesn’t grow. Then I am down to two plants altogether.
2. Plant a new seed and try to catch up. The other two broke the surface on 13th december (germinated 9th dec). Is that too much of a gap? Maybe I stunt the two NL’s for a bit later in veg by topping or FIM-ing?

I don’t know if I two plants can yield as much as two. Keep in mind this is a complete rookie indoor grow. Never did this before, only outdoor.