We know D.C. Get our free newsletter to stay in the know. If you love City Paper , get it every day in our newsletter. Hopefully all of you aspiring growers have been able to get your seeds When you are planning on starting your marijuana plants from seeds, a particularly “good start” will have a very crucial and influential role in the plant's overall outcome. This soil germination method is a low risk, easy method that that take up to 3-10 days. Read our guide to learn how to germinate seeds in soil.
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Hopefully all of you aspiring growers have been able to get your seeds so we can move to the next step: germination.
Take great care handling seed and seedling. Most flower and vegetable seeds are simply planted directly in the soil, but because of the value of cannabis seeds, germinating seeds prior to planting is encouraged. Growers can achieve a much higher survival rate by germinating in a non-soil medium and then transferring the seed to soil once the tap root has emerged from the seed.
Here is one of the simplest and most successful methods: Put a double layer of paper towels on a dinner plate, then thoroughly soak the towels with water and tilt the plate to drain off the excess. Place your seeds on top of the wet towels and cover with another double layer of soaked paper towels. Be sure excess water is drained off—you don’t want the seeds to be swimming.
Cover the plate with an upside-down plate or pot lid. A plastic bag or plastic wrap also works. Don’t make the seal tight—you want to leave some openings to allow air flow.
Keep the germinating seeds away from direct light. For best results, keep them at about 75 degrees Fahrenheit. A radiant heat source, like a heating pad, helps expedite the process. If you’re using a heating pad, be sure to keep the heat setting on low and place a folded hand towel between the heating pad and plate: Direct contact between the plate and heat source can cook your seeds.
Under the right conditions, seeds usually open in one to five days, so check them daily. Do not allow the towels to dry, and add water as needed to maintain moisture. Some seeds can take as long as 10 days to germinate, but if seeds have not opened within 10 days, they are not viable.
When the seeds open, the first thing to emerge is the root. Once the root sprouts it can grow quite fast.
When the root grows to a few millimeters in length, the seed is ready to be transferred to soil. Always take great care not to damage the tap root when handling. The best soil to use for a sprouting baby ganja plant is a “seed starter” or “seedling” mix. These are light neutral blends with very little fertilizer. Heavily fertilized soils will kill seedlings quickly, and cannabis seedlings prefer loose, aerated soil that their roots can easily penetrate. A bag of good starter soil is easily identifiable: When you pick it up, it should feel light and fluffy. Soils that are heavy and compact are not good for seedlings.
Now, on to potting (no pun intended). A healthy seedling will be ready for transplanting into larger container, with richer soil, in about a month. A 16- to 20-ounce container is ideal for a seedling’s first home (many growers use a Solo cup). The container must drain, so punch some holes if needed.
Fill your container with pre-moistened soil and create a hole about a half-inch deep for your seed. The tip of a pencil works well for making the right sized hole. The seed should be about a quarter-inch below the surface.
Place your germinated seed, root down, into the hole and cover lightly. Do not pack the soil on top of the seed; a light protective layer of soil is all that is needed.
Once they sprout in one to three days, new seedlings will need lots of light, and fluorescent grow light works best. Give your baby ganja plants 16 hours of light per day.
It’s very important to have a breeze on your plants immediately. A fan placed at the proper distance and speed should create a breeze just strong enough so your plant “dances,” but not so strong that it’s bent in one direction.
Without a breeze, indoor ganja plants won’t receive the stimulus needed to develop sturdy stems and branches, which the plant will need to bear the weight of big, sugary buds.
The Potanist is written by Bud Baker and Herb Green (yes, those are pseudonyms; yes, they are real people). Reach them at [email protected]
Graphics by Stephanie Rudig
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How Deep to Plant Marijuana Seeds
There are plenty of suggestions and advice out there on how deep to plant marijuana seeds ? How deep should it really be, anyway? Well, professional marijuana growing has observed that the best depth of the dimple to make in the soil or the growing medium is about 1/2 to 3/4 inch and no deeper. One way growers do it is by marking the side of the pot to ensure they don’t go too deep and use the blunt side of a pencil or a pen to poke a hole in the growing medium.
Well, the idea is to position the seed shallow enough so it will not have a hard time sprouting while ensuring that it has still space to grow roots before it would need to totally support its full weight, this way the seedling will have time to develop support from its roots while in its early days. On the other hand, going too deep may restrict one element that is really required for the seed to germinate and grow. Only experience will give you a personal preference, but learning the basics of cannabis seed germination will lead to a successful grow. You will understand later as you read through this article.
How to plant marijuana seeds directly in Soil
1.Germinate your Cannabis seeds
There are 2 common and popular methods for this one and they are the Wet paper towel method and germinating directly in the soil. If you wish to do the latter and opt to go direct, it is recommended to soak your seeds in lukewarm distilled water for no more than 24 hours.
You will notice around the 12th hour that some seeds will sink to the bottom and together with those that will sprout a tiny taproot will be your most viable seeds in that batch. The idea is to fully saturate the seed with water which in turn will trigger the seeds to sprout.
2. Prepare your Pot where to Plant/Transplant your Cannabis Seeds
Fill 2-inch garden pots with your preferred growing medium or potting soil mix. At this point, use a pot that is small enough just to house the seeds, using smaller containers to start is always recommendable. Use potting soil or soilless mix that is loose and airy. They should be most to the touch. Make sure not to overfill your pots.
Alternative option – You can use starter cubes at this step and they are quite inexpensive and simple to use. This option has proven to be very effective when sprouting cannabis seedlings.
3. Make a Hole
Position your seed hole in the middle of the planting surface of your pot, aim around 1/2 inch deep and make sure not to go over 3/4 of an inch.
Tip! – You can use a pencil or a pen to poke a hole for the seeds to lay in and remember not to poke too shallow or too deep as this is crucial in this process.
Premise – Planting too shallow will not allow the plant to develop its roots while planting too deep will make it more difficult for the sprout to push through.
4. Planting/Transplanting your Cannabis Seeds
This step is fairly simple but there should be some things that we have to do correctly.
When dropping your seeds in the hole that you have made on your planting medium, make sure that the taproot is facing downwards or towards the ground.
5. Cover your seeds
Once your seed is well-positioned in the hole, gently push the growing medium over the seed and pat softly.
Tip! – Do not press too hard on the soil as this will disturb its growth.
Alternative Option Tip! – If you are using cubes, just gently pinch the hole shut and do not press on the cube.
The Bottom Line
When you are planning on starting your marijuana plants from seeds, a particularly “good start” will have a very crucial and influential role in the plant’s overall outcome. So, it is important not to over complicate it and let the plant do its thing. What is important on the other hand is us, the grower, must be always prepared to make sure that we can also provide the best environment for our beloved sensimilla.
Soil Germination Method in 8 steps
Amongst the best ways to germinate cannabis seeds, this soil germination method is a low risk, easy method that explains how to germinate your seeds in soil. Germination can take 3-10 days, depending on environmental conditions and variety
Never use soil from your backyard! It can contain pests and moulds that will damage or destroy your seeds, seedlings or plants.
How to germinate seeds in soil
Read here which 8 steps you have to take for this soil germination method.
Step 1: Prepare your soil
Prepare your pots with clean fresh soil. It is often easy to use small pots for this, and transport them to a larger container later.
Step 2: Watering the soil
Make sure your soil is wet, but do not soak it. It needs to be damp but not soaked, otherwise you risk your seeds to rot. In most countries, normal tap water is clean enough to use. Do not add any additives to the water.
Step 3: Placing the seed inside the soil
Make a small dimple in the soil and place the seed 3-5mm deep inside the soil. Don’t bury your seed too deep! When you put your seed too deep inside the soil, it will struggle to reach the surface, and have a high risk of dying before it does.
Step 4: Cover the seed and press gently
Cover the seed with soil and press the soil gently.
Step 5: Cover the pots with kitchen foil
Cover your pot(s) with kitchen foil or microwave foil (with the small holes). The foil will act like a small greenhouse, keeping the inside of your pot warm and moist. Perfect for germination.
Step 6: Poke some holes
When you use normal kitchen foil, poke some holes through the foil. This will avoid the risk of overheating and let air flow true.
Place your setup in a room with stable temperature. 20-25 degrees is ideal. We often advice your living room
Step 7: Wait for germination
All you have to do now is wait. In our experience it often takes about 4-5 days for your seedlings to show. But to calculate for differences in conditions and seeds, we say 3-10 days is a safe estimate. As soon as your seedling has sprouted (first leaves reach the surface) you can remove the foil.
Step 8: Take care of your seedlings
All 5 seeds germinated in 4 days within 24 hours of each other. You can now place them under a grow light, behind your window or outside (during spring / summer of course).
WARNING! Do not place this germination setup outside in direct sunlight, especially during summer. Day and night temperatures vary too much and sunlight will cause the temperature inside your soil to rise to a point where your seed will be damaged or killed by the heat.
17 Comments . Leave new
buongiorno dutch passion ho seguito il vostro tutorial e dopo 4 giorni la germinazione è avvenuta.una domanda vorrei fare,devo aspettare che si aprono i cotiledoni prima di rimuovere la pellicola o posso mettere il vas gia al sole anche se non sono aperti i cotiledoni. grazie e buona domenica
tutto ok germinazione perfeta.
When a seedling is in its first days its best to not place it in direct sunlight. This can be too much for a little seedling. When the seedling starts growing a little bit you can place it in direct sunlight
ok perfect I do this because I saw that it is the best method.I had put it in direct sunlight and it was dying, I managed to save it in time.I have one in germination and I will apply your advice.thank you very much Joe
Once the stem has come through the soil how long till you put it on a larger pot and up the tempreture
It depends a little bit on the pot size you started with.
Additionally, if you grow an autoflower its best to germinate them in the pot they will also flower in. They don’t like to be transplanted a lot.
If you grow feminised seeds than you can put them in a larger pot after 3/4 weeks.
Sweet thank you ,
Hi, Joe answering?? I did an error putting seeds in soil not enough wet and under lamp … I choose Orange punch feminized and autoflowering…Is a good choice for me ad a beginner or could you give me best options? (Medium-high THC and quantity of final result) I also need some good ideas about the soil to use and the power of led lamps (I’ve buyed 2x100watt multiple ranges led lamp for plant grown for about 60cm x 40cm for 4/6 seeds). I have to do another order and I’m trying to do all well. Waiting hopefully for your answer, my best regards, thanks. Heathcliff
Critical Orange Punch is a good strain to start your growing career. Please try to follow the germination steps from this blog and you should be fine Don’t start your light if the seeds have not germinated yet. For your soil I advice you to have a type of soil that has minimum nutrients because seedlings cannot handle too much nutrients, these should be added later :).