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cannabis seed not sinking

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Lights should remain ON for 16 – 20 hours and OFF for 4 – 8 hours. You are deciding this right now, because changing this light cycle in mid-growth IS stress for the plant – we will control the lights completely. This is the ‘trigger’ for future growth stages. I recommend 18 hours ON, 6 hours OFF once germinated.

Half fill your glass with mineral water. We have taken a single seed (female), and placed it in the water (shot glass). Notice that the seed is initially floating.

Again, leave this covered and warm for at least 24 hours. This will allow the seed to absorb water, and is an excellent indication that the seed can grow.

Germination

At times, I plant more than one seed to a cup. Sometimes I leave them both in the cup, and sometimes I separate them immediately after they break ground.

You can use your local water with one caution. Fill a pitcher with your water 24 hours before using it & leave it open. This allows chlorine and other potentially harmful chemicals to escape into the open air.

Each time you change containers or transplant, it will make the plant stress for a week or so.

The cannabis seed sinks when it absorbs water (24 hours). When you return the next day and uncover your glass, you may notice that the seed sank to the bottom.

One of the most common errors is just leaving them in some damp kitchen paper on a plate, as they’ll dry up before they can root. You need to make sure that the paper isn’t dry, if it’s dry you’ll need to give them a bit more water, some people give them too much water in case they dry out etc. These practices are what cause seeds to dry out or to drown in too much water; it’s not the seed’s fault, but generally the grower’s.

Another big mistake is germinating in a glass of water. The issue with this method is many people don’t take into account the water temperature. If the water’s too cold then the seeds will sit there for days until they eventually rot due to the low temperature in the water. This method’s okay for warm summer months when there’s a decent temperature and the water doesn’t get too cold. This still isn’t the seed’s fault.

One of the biggest mistakes is germinating straight in a jiffy or soil. The issue here is that the seeds will most likely take much more than 48h to germinate, and by then the upper layers of soil will have dried out, and if it doesn’t die off due to that then it will probably die if you try and water it to keep humidity up; in these cases, the seed tends to come to the surface or they can sink even further into the soil. Once again, this is the grower’s fault.

Why didn’t my seeds germinate? This is a question often asked by novice and experienced growers alike. Some people think that it’s because they bought old seeds or badly made seeds, but it’s generally because the germination process isn’t done properly. Cannabis seeds have a 99% germination chance, even after being in a box for up to 5 years.

The only way to be sure that your plants are going to get a chance to grow is to germinate them before putting them in the desired medium. The only way to make sure that they germinate is to make sure that the temperature never goes below 20º and that the paper doesn’t dry. How? By using a simple plastic kitchen container. If you germinate your seeds in a plastic container with some damp kitchen paper and you keep it closed, the water from the paper won’t evaporate and dry out. Even if it takes 10 days it will still germinate. Once the seeds have opened, you’ll need to place them in a properly watered pot because you won’t be able to water again until the seedling pops through the surface, although this should only take one day indoors and maybe 2 outdoors. With this system you can germinate hundreds of seeds in a small Tupperware container. If it’s summer and it’s warm, you can just stick them anywhere out of direct light. If it’s the winter and it’s colder you can place the container on top of your TV or internet box to give it that extra bit of heat. If it’s going to be somewhere where light can get to it, cover the box in tin foil.