Planting Marijuana Seeds Which Way Up

First, you need to place the seeds in a culture medium that has the right humidity and temperature before you start a series of reactions leading to… A step-by-step guide describing the best way to germinate your cannabis seeds. This germination method is ideal for the indoor and outdoor grower.

7 Tips for Germinating Cannabis Seeds from Top Notch Growers

What is the best way to germinate your marijuana seeds?

7 Tips For Germinating Cannabis Seeds

Are you trying to grow Cannabis seeds? Well, here are some useful tips to help them grow and germinate successfully.

1. Don’t Let The Germination Medium Dry Out

First, you need to place the seeds in a culture medium that has the right humidity and temperature before you start a series of reactions leading to germination in a few days. Depending on the substrate you use for germination, make sure it never dries out completely. That’s because the seed will stop absorbing moisture thereby stop germinating.

You need to check every day to make sure the medium is always moist. If you use a heat source to increase the temperature and improve germination, it might cause the substrate to dry up faster. Therefore, you need to check on it regularly to make it moist and avoid drying up. If you are using hydroponic cultivation, you should grow the cannabis seeds in rock wool cubes that must always remain wet or moist.

2. Don’t Leave The Seeds To Germinate For Too Long

Most cannabis growers make this mistake, especially when using kitchen paper or other growing mediums. If you let the seeds germinate until the cotyledons appear then you will have a hard time with transplantation. Eventually, you might end up damaging the root during transplantation.

Remember, if the root is exposed to air and light for too long, it will end up being damaged. Therefore, you need to start transplanting before this happens. Therefore, you can avoid this when the taproots are about 1-2cm in length. It’s easier to transplant at this time and you will not damage the roots. As such, after transplantation, they can grow into the new medium without any limitations.

3. Avoid Direct Germination In Soil

Direct germination in the soil will often result in non-germination. If you do this when the substrate hasn’t been watered previously before sowing the seed but you water afterward, there will be no germination. Once the seed is planted directly into the substrate, there is a risk of burying it too deep. It will make things worse if you irrigate the medium after sowing.

For the best results, use kitchen paper when growing the cannabis seeds. You can also use peat plugs or jiffy pellets for rooting cutting before transplanting them into the soil or a pot once the small seedlings have germinated. Another benefit is that you can grow many seeds in a small space such as a greenhouse. It’s the best way to ensure the best humidity and temperature.

4. The Best Temperature And Humidity For Germination

Cannabis seeds will grow well in a relatively high temperature and humidity. During some seasons of the year, you can use heat sources to keep the temperature at 26 to 28 degrees Celsius. You can rely on heated greenhouses or thermal cables for the best results. Heated greenhouses are ideal because they also provide the best humidity for seed germination.

It’s ideal to keep the germination medium at about 26 to 28 degrees Celsius. The humidity should be maintained at 70% relative humidity. If you go any lower, there will be less successful germination. Higher values will result in fungal or rot problems.

5. Avoid Planting The Seeds Incorrectly

Cannabis seeds are usually oval in shape. They end in a point at one end and form a small crater at the other end usually known as the crown. When planting your seed, whether in a jiffy or a kitchen towel, make sure that it is always supposed to face upwards.

Therefore, the seed should be planted with the tip facing downwards and the crown at the top facing upwards. Once the seeds germinate the crown begins a hinge so the seed and the tip bring out the root. Once you plant the seed incorrectly, the taproot grows upwards while the seedling grows downwards. Make sure you avoid this at all costs since the seedling will not germinate.

6. Planting The Seed At Incorrect Depth

In most cases, you might plant the seed at the wrong depth such that the seedling will never germinate. On the other hand, if you plant the seedling close to the surface, it will germinate but the stem might be too weak. As a result, it might start bending thereby preventing the seedling from developing correctly.

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The best depth is about 2cm if you want to avoid shallow or deep planting. Also, you can cover the lower stem as the seedling starts growing to allow it to gain stability. It should also produce new roots along the length of the stem depending on the depth. It’s a sure way of accelerating the growth of cannabis plants.

7. Avoid Planting Several Seeds In The Same Pot

Yes, it might be tempting to grow several cannabis seeds in the same container but it’s not a good idea. There will be some type of difficulty growing the seedlings correctly in the same container. On the other hand, when they germinate, they will start competing for the little space available to grow roots.

With restricted root growth, the cannabis plants will not grow successfully. They are likely going to be weak and have a large internodal distance. Therefore, it’s always a great idea to use different containers for different plants for the best results. Remember, with very little space, the plants will also start competing for the available light.

If you want to get the most out of each cannabis plant, you need to avoid planting a lot of seeds in the same container. If they are too crowded, they will have very little lateral branching and the growth will be centered on a weak main stem. All these factors will definitely have a negative effect on the final yield of the cannabis buds and impact on the amount you have for smoking or other cannabis uses. Get as many containers as possible to allow strong roots to give the plants enough space for proper root growth and light.

You must be excited to grow your own cannabis plants. However, if you make any of these mistakes with the seedlings, you will not yield anything. Do your research online or get information from other successful cannabis growers if you want to have a successful cannabis crop. Remember, if you don’t follow the temperature and humidity requirements, your crops will end up not being fruitful. With these tips, you can enjoy a great and successful cannabis crop without any hassles.

How to Germinate Cannabis Seeds

Germination is the beginning of your cannabis seeds’ life and is easy to master. At this crucial stage, seeds grow and sprout into young seedlings. The best genetics deserve the best start, and all you need is two plates, some paper towel, and water. Apply the best germination method today and enjoy a great harvest.

1. Germination set-up

Prepare the first plate by lining the inside surface with two to three layers of damp paper towel. Drain excess water from your plate.

Place cannabis seeds on the top surface of the damp paper towel. Approximately three per plate; ensure they are not touching but are evenly spaced apart.

Add only a few layers of damp paper towel on top of the seeds, and let any excess water drain from the plate. Too much water lowers the chance of successful germination.

To complete the set-up, place the remaining plate upside-down and on top of the first plate, resembling pearls inside a clam.

2. Germination

Cannabis seeds need a dark, warm, and humid atmosphere to germinate.

Around 21°C (70°F) is perfect. Check the paper towels every second day and if required, spray with water to keep conditions moist for your seeds.

After a few days, tiny roots will begin to emerge. Congratulations! Your seeds have survived their first stage of life. Don’t worry if some of your seeds have not yet changed, they may just need a little more time as germination can take up to 14 days.

3. Plant of the seeling

Once the roots are a few millimetres long, they are ready to be delicately transferred to a small container filled with your growing medium of choice (rockwool, coco-fibre, or soil).

Make a hole in the growing medium that is 2 – 5 mm deep. Use tweezers or your fingers to transfer germinated seeds gently into the hole (root pointing down) and lightly cover with a fine layer of your medium. Do not pat it down too hard. The stem and the first tiny set of leaves, called cotyledons or ‘seed leaves’, should begin to emerge 24 to 72 hours after the seeds are planted.

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4. Supplying a light source

Seedlings must be exposed to sunlight once they sprout. Ensure this is a gradual process as too much heat causes stress and will stunt growth.

Find a sunny place where you can begin to increase sun exposure, such as a windowsill. Ensure sun exposure is increased by an hour or so a day.

For an indoor plant you can use a fluorescent light (keep normal distance from bulb) or HID lighting (50-80 cm from the bulb).

Take care in the first week or two, as seedlings are still quite delicate and sensitive to the elements. They won’t need a lot of attention until the vegetative stage so avoid overhandling.

Germination is the beginning stage of the growing cycle, and this easy-to-follow guide gives your premium genetic cannabis seeds the best start to life. Whether you are a first-time home grower or a well-seasoned gardener, share your experience or any questions in the comments down below, as well as your tips and tricks!

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Comments

22 thoughts on “How to Germinate Cannabis Seeds”

Hi, Once seeds have sprouted, how long can or should you leave them to grow under 24 hr lights before moving to your outdoor garden?

Good afternoon Ken,

I hope you’re having a great day.
For the vegetation process, a light schedule of 18 hours of light, and 6 hours of darkness is preferred. Many growers get plants acclimatized to outside by placing them in a window, or under direct sunlight for a few hours a day.

Thanks again, and have a great day!

Hello everyone, all these suggestions are wonderful but I think a lot of you make it sound a little overwhelmingly. I’ve been very successfully cultivating for decades and I’ve always just placed my seeds, be it 1 or 100, in between 2 folded sheets of tissue which I’ve made wet with tap water. I then place them on a tray or plate in a warm dark area , such as an airing cupboard and leave for how ever long they take usually, 12 to 24 hours. The ONLY thing I do which takes effort is PH balance the water I germinate them in and I’ve only lost 5 seeds in nearly 40 years .

Good afternoon Paul,

I hope you’re having a good day,
Thanks for sharing your experiences with germination. pH balancing is a great tip You also might be interested in our new Jamaican Pearl Feminized Grow Report

Thanks again, and I hope you continue to enjoy the blog,

I lightly score my seeds by shaking them inside a rolled up piece of sandpaper – sandpaper side on the inside before leaving them in a cup of water for a few hours to hydrate. I then place them between wet (good quality) paper towel per instructions above. I find using an old plastic takeaway container with a heatmat below keeps the humidity high and with good end results.

Good morning Jonny,

Thanks for sharing your methods for germination with us, the heat mat and low-humidity are great tips!

Thanks again, and I hope you continue to enjoy the blog,

I have found out that the best and fastest way is to take a glass of clean/filtered water and place the seed right on top of the water (floating – NOT immersed in it!). If the seed is viable it will sprout in no more than 48 hours. Right after that you plant it in your pot/soil etc and you’re done.

Good morning Mary Jane,

Thanks for your support, and for sharing your experiences with germination!
You might also be interested in our article on The Life cycle of Cannabis: From seed to harvest.

Have a great day!

What happend if they sink I had em sink they came out fine

Are you saying they sprout in the glass of water and don’t “drown”?

Take aluminum foil flatten it out and put on top of your dirt it detects planes and grow it just like a tomato plant

Good morning Tammy,

Thanks for getting in touch with Sensi Seeds, and sharing your germination method with us!

Thanks again, and I hope you continue to enjoy the blog.
With best wishes,

Detects planes? Like magnetic? I’ve always has best success 24-48 hours soaked In water, spring water if possible. Usually do this in a shot glass, once they pop I’ll take a paper towel fold so it’s 2 layers then fold once more so you know where center is. Dump the seed in the middle of the edge and the true center (reason we folded a 2nd time)as well as the water just enough to saturate the paper towel. Do not soak! Carefully with the seed in the middle using sterile tweezers turn so the tap is growing down. This will prevent circling and tangling if doing multiple seeds. Now you can fold the other half so your seed will be “sandwiched” between 2 layers. At this time carefully take a corner and the waters attraction should keep your paper towel from unfolding but just in case be gentle. Holding it from 1 corner you can dangle it over a cub or the original shot glass so any extra water runs off. Now take a standard zip or press n seal sandwhich bag and slide your napkin in Carefully . REMEMBER which way was down! Work the air out making jt flat snd seal. Find a temperate dark area around 70°. A cabinet works we’ll as your going to prop it up with taproot facing downwards. Now just close it up and wait in 24-72 hours checking once a day. In rare cases you could have a 1/2″ tap root in the first 24 hrs some may take 4-5 days. Once the tap is about 1/2″-3/4″ long its ready for transplant into its first small pot. With this paper towel method I typically have 100% success.

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Can you leave your seed to develop longer roots in the germination phase and can this make them better to grow or is a big no no?
Last year, I had 2 seeds that had really long roots with lots of secondary roots coming out when they were planted, one of which died after a couple of weeks and the other grew into a huge plant.
The other two seeds only had a short germinated growth and both died almost immediately after planting so not sure what I can learn from this…lol

Appreciate any thoughts and advice

Unfortunately, legal restrictions mean we can’t answer grow-related questions or give grow advice on this blog. However, other readers of this blog will often answer questions like yours.

Please check out the following articles on our blog which I think you may find of use, and I hope you continue to enjoy the blog!

With best wishes,

How often do you water and how wet should the plant be? Please.
Also if they are outdoor plants do you need to keep them covered with clingfilm for a wee while or do you just hope for the best. Thanks

This article, about how to water cannabis plants, should answer your questions. I can’t help you with the clingfilm one though, as it depends on the climate. Good luck, and happy gardening!

With best wishes,

Just drop the seeds in water, they will sprout , don’t have to use a towel and check it all the time , drop it in the water , let it float then it will sink and the root will grow out ,let the root get 1/4 inch and plant it where it’s going to grow , 8 hours sunlight starting as soon as it is out of the soil. Always grows great , don’t have to transplant from cup to gallon to bigger and bigger , if it’s growing outside put it where it stays , always does just fine.

Good afternoon Graham,

Thank you so much for sharing your experiences with germination.

Thanks again for your comment, and I hope you continue to enjoy the blog.

Have a great day!

I recommend this article to all breeders and cultivators who plans to germinate seeds and to some who don’t know how to germinate seeds, this article has the best and perfect ways on how to do it.

I have large bay windows at my condo which get about 11-12 hours of light per day. They are tinted but warm. I grow other indoor plants there perfectly. Is an ok place for my pot plants?

This sounds like a great place for all kinds of plants! I recommend you have a look at autoflowering varieties, as otherwise light pollution may negatively affect the flowering cycle. Good luck, and happy gardening!

With best wishes,

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