Planting Weed Seeds Too Deep

Improve your success when planting seeds by avoiding these common seed-starting mistakes and errors such as planting too deep, starting too soon or watering too much. 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

Most Common Seed-Starting Mistakes

Seeds are magic to gardens. Tuck them in soil, add a little water and you are on the way to a beautiful bloom or tasty harvest. Start seeds indoors to jump-start your garden. Whether or not you have experience starting seeds, you will improve your success by avoiding these common errors.

Seed-Starting Mistake #1: Catalog Hypnosis

It is tough to resist the beautiful pictures and glowing words in seed catalogs. Even experienced gardeners struggle to resist the allure. That is the first mistake most seed starters make: ordering too many seeds. A simple secret to success with seed-starting is exercising self-restraint. If you are new to the practice, do not start too many different types of seeds. Stick with simple ones, such as Tomato, Basil, Zinnia or Cosmos.

Seed-Starting Mistake #2: Starting Too Soon

In many regions, sowing seeds gives you a chance to get your hands dirty when it is too cold to garden outdoors. Do not start your seeds too soon. Most plants are ready to shift into the great outdoors in 4-6 weeks. Learn more about perfect timing for seeds.

Seed-Starting Mistake #3: Planting Too Deep

Read seed packets carefully, for detailed information about how deep to plant seeds. The rule of thumb is to plant seeds at a depth equal to two or three times their width. It is better to plant seeds too shallow than too deep. Some seeds, such as certain Lettuces or Snapdragon, need light to germinate and should not be covered at all.

Seed-Starting Mistake #4: Not Labeling Trays

Once you start sowing seeds and get dirt on your fingers, you will not want to stop and make labels. Before planting, prepare labels and add them to containers as soon as the seeds go into soil. Otherwise, it can be tough to tell seedlings apart. Be sure to include sowing date on your labels.

Seed-Starting Mistake #5: Soil Is Not Warm

Seed packets specify the temperature seeds need to germinate – soil temperature, not air temperature. Most seed germinate at 78ºF. You will have sure success if you use a waterproof root-zone heating mat. Once you start germinating seeds in soil, aim to keep soil temperature in the 65-70ºF range.

Seed-Starting Mistake #6: Too Little Light

In the warmest regions of the country, there is enough ambient light in a south-facing window to grow stocky seedlings. In northern areas where winter brings persistent cloud cover, you will need supplemental lights. Purchase or build an illuminated plant stand to start seedlings. For stocky, healthy seedlings, provide 14-16 hours of light daily. Suspend lights 2-3 inches above seedlings.

See also  Weed Seeds Jack Herer

Seed-Starting Mistake #7: Water Woes

How much water do seeds need? For seeds to germinate, you need to keep the growing soil damp but not too wet. Learning how to water seedlings is pivotal for success. Many seed starters cover the container to keep soil moist until seeds germinate. Once seeds sprout, do not miss a watering. Unlike established plants, seedlings do not have an extensive root system they can rely on for vital moisture. At the same time, it is important not to overwater and let seedlings sit in water.

Seed-Starting Mistake #8: Not Enough Pampering

Seedlings are delicate creatures. They need daily attention and lots of tender loving care, especially when they are young. If you cannot monitor seedlings daily, checking on germination, soil moisture, temperature, and lights, you will definitely reduce your chances of success. Seedlings do not survive neglect.

Learn More About Starting Seeds

Not sure you want to start seedlings? Learn why you should consider starting your own seeds.

Seedlings must be prepared for the transition to life in the garden. Learn how to strengthen seedlings before planting.

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
  • Posts: 1670

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.

Comment

  • Join Date: Aug 2018
  • Posts: 33

Comment

  • Join Date: Sep 2018
  • Posts: 155

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.

See also  Stems And Seeds Weed

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.

Comment

  • Join Date: Oct 2018
  • Posts: 23

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.

Comment

  • Join Date: Oct 2018
  • Posts: 23

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?

Comment

  • Join Date: Aug 2018
  • Posts: 33

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

Comment

  • Join Date: Sep 2016
  • Posts: 1475

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.

See also  Best Containers For Weed Seeds When Starting

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!

Comment

  • Join Date: Oct 2018
  • Posts: 23

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.

Comment

  • Join Date: Sep 2018
  • Posts: 155

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.

Comment

  • Join Date: Oct 2018
  • Posts: 23

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.