Cannabis Seed Starting Soil

Best Soil Mix For Cannabis Seeds and Starts Any recommendation for a brand of good proven potting soil for starting seeds. I’d prefer a light mixture and sterilized. There are two schools of 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.

Best Soil Mix For Cannabis Seeds and Starts

Any recommendation for a brand of good proven potting soil for starting seeds. I’d prefer a light mixture and sterilized.

There are two schools of thought on soils for starting seeds. Sterile can help assure that the young plants get off to a good start without disease, fungus or pathogen. Unfortunately though, sterile is a condition that’s impossible to sustain. The other route is to start in soil that is rich with beneficial fungus and bacteria. The idea is that the beneficial organisms will colonize the soil and prevent any of the bad guys from getting a foothold. Additionally, nitrogen fixing microbes can be used to enhance soil fertility while safeguarding the soil against harmful bacterial growth.

I am not a microbiologist but the major players in this process are well understood and documented.

Common Bad Fungus: Verticillium, pythium

Bad Bacteria: Too numerous to list

Good Fungus: Trichoderma (invasive), Bacillus Subtilis (found in Serenade spray), bacillus thuringiensis, mycorrhizae fungus particularity Glomus intraradices
Good Bacteria: Some strains of Streptomyces, Azospirillum brasilense (nitrogen fixing)

A good soil is alive and teeming with biology both macro and micro. Healthy soil is hard to find in bags because it can takes years to cultivate. Compost tea is a great product for introducing beneficial soil microorganisms into our growing medium.

My answer to your question:

Pro-Mix HP, Pro-Mix HP +microbes, Happy Frog, Ocean Forest

Any premium potting soil that is available in your area and does not contain too much added fertilizer. Choose a soil that’s finely sifted and does not contain a lot of bark or shredded wood. Buy soils from a garden shop that stores their pallets indoors. Do not buy bagged soil that has been setting outdoors getting weathered.

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Soil Alternates:

These are normally used to starting clones but these soil alternatives also work great for germinating seeds.

If you seeds are very high value, meaning you don’t have many or they were very expensive germinate the seeds before planting. Cover your seeds in moist paper towel or similar medium and allow them just enough time to crack their shell. Remove and plant before the roots emerge and become too delicate to handle. Tap water or distilled water can be used. Microbial products can be added to the water to inoculate the seed, use as directed.

After seeds are germinated plant them into soil or growing medium using delicate gloved hands, chopsticks or tweezers.

If your seeds are plentiful and or you are starting a great number of them I like to use 50 cell divided planters or an appropriate number of 6-packs to fill a standard “no-hole” garden tray. Plant the seeds in the soil and keep warm and moist but not waterlogged.

Cannibals is a very special plant but does not require any special conditions or treatment to thrive, there is no “Right way” to grow it.

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.

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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

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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.

Dutch Passion

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 :).