Planting Weed Seeds Too Deep

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 It's a few weeks before spring, and gardeners everywhere are starting baby plants from seed. Germinating seeds isn't usually a difficult process, and for most veggies the process is quite simple. But what's a gardener to do if they're having problems germinating seeds? The first thing to check is

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.

See also  High Times Weed Seeds

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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  • Join Date: Aug 2018
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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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  • Join Date: Sep 2016
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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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  • Join Date: Sep 2018
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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?

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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.

5 Fatal Mistakes For Germinating Seeds

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It’s a few weeks before spring, and gardeners everywhere are starting baby plants from seed. Germinating seeds isn’t usually a difficult process, and for most veggies, the process is quite simple.

For complete instructions for starting seeds, get the seed starting guide.

But what do you do if your seeds don’t germinate?

When seeds don’t sprout, you should always take time to evaluate what happened. So I thought it would be helpful to talk about the most common reasons you might have seed germination problems.

Some years our germination is a little patchy, and occasionally whole rows of seedlings will not germinate. It is important to keep up with our germination rate to evaluate our technique and seed health.

For us, a minimum acceptable germination rate is when at least 80% of our seeds sprout. But ideally, 100% of our seeds come up, so anything less than 80 or even 90% germination rate, and we start looking at what went wrong.

Learn the 5 fatal mistakes for germinating seeds

When vegetable seeds are not germinating, there are a few common problems that you should look for.

1. You used old seeds

The first thing to consider is whether the seeds were viable in the first place. If your seeds have not sprouted within the appropriate number days (this will depend on your seeds), then you may want to consider using a pen or pencil to gently dig around in your soil and find the seed.

  • If you don’t find the seed, think back. Did youforget to put the seeds into the mix? Don’t laugh! It could happen!
  • If you find the seed, take a good look at it. You may see that it looks just the way it did when you put it in the soil. In this case, the cause for a low germination rate might be that it was an old seed or not properly stored.

If you have some old seeds and are unsure of whether your seeds were viable, you can always sprout a couple of them in a wet paper towel to check prior to planting.

For new seeds or seeds you saved last year:

  • When you saved seed, did you put them away without letting them dry completely? This can cause seeds to rot or mold.
  • Were they exposed to extreme temperatures during storage? For example, if you left seed packs in your car over the summer. High temperatures over 90 can kill the plant inside the seed.
  • Was the parent plant healthy? Seeds can harbor infection from the parent plant that may prevent sprouting, however, this is not usually the case.

2. You didn’t use new or sterilized containers

Disease issues can be a factor in seed germination. Think back to last year and whether you had any disease issues with your seedlings.

  • Most plastic containers can be reused for several years, but they need to be sanitized.

We clean ours by submersing them in bleach water at the beginning of the season.

If you are looking for a bleach alternative, try the environmentally friendly bleach alternatives that use hydrogen peroxide as their active ingredient.

See also  Loud Weed Seeds

Fungal and mold infections are the most common infection from dirty containers. If infection occurs you will notice a fuzzy growth on the top of the planting medium.

  • You may also see that a seed sprouts, but then rots at its base and falls over.

This is called damping off and is caused by a funal infection in your soil. A hydrogen peroxide or colloidal silver solution can help treat fungal disease on your tender plants.

3. Your technique is not right

  • If you started seeds in any mix that includes non-sterilized soil from the yard, your seeds may have been affected by disease organisms in the soil.

In order to use garden soil for starting seeds, you should sift it carefully to remove sticks and clumps. Then bake it on a cookie sheet in the oven at 180 degrees for 30 minutes. That should kill most weeds and pathogens.

You’re better off using a seed starting mix. Seed starting mix is usually a soiless mixture that has a finer grain and is free of clumps, sticks, and pathogens.

  • Did you plant your seeds too deep?

Planting your seeds too deep can cause problems with sprouting. You should also avoid pressing down on top of your seeds after you plant them. If the soil in your container is too compacted, the seeds cannot sprout or form healthy roots.

4. You didn’t provide the correct temperature

The temperature of your soil is of utmost importance in getting a good seed germination.

  • Temperatures that are too high or too low can cause problems germinating seeds.

Given all else is equal, even tray germination requires even temperatures. If temperatures plunge at night, or peak over 100 for a prolonged period, seeds will either remain dormant or die.

  • Did you leave the heat mat too high or too low?

Even when using seed starting heat mats, accidents happen. If you forget to put the temperature probe into the seed tray, the heat mat can overheat and cook the seeds.

Sometimes heat mats get accidentally turn off, or you forget to plug it in.

An alternative to the heat mat is to put them in a sunny south facing window or on top of the refrigerator. You can also use grow lights to provide heat above, and I have even seen people use rope lights to generate warmth.

5. You watered incorrectly

Seeds need to be moderately moist to sprout.

  • Seed germination is highly dependent on watering. Too dry and they won’t get the message to sprout, too wet and they will rot in the dirt.

Very young seedlings are even more tender. Seedlings do best in what we call the “Goldilocks zone.” You know Goldilocks. She likes her porridge not too hot and not too cold, but juuust right.

  • Tender seedling babies can’t tolerate drying out. While young, even a short dry period can mean death after the first wilt.

On the other hand, their tender roots will be the first victim of conditions being too wet. They can’t get the oxygen they need to carry about their business, and it will stunt or kill the seedling.

What other problems have you had germinating seeds?

If you’ve had troubles germinating seeds and this article didn’t answer your question, leave me a comment below. I’m happy to help you work out what’s going on.