You can buy quality cannabis seeds, but they die during the first stage, germination. That is, you put them in the substrate, and the seedlings do not come out. In this case, the risk that the money for the purchase is spent for nothing is very high.
That said, don’t forget that some seeds take a little longer to germinate than expected (sometimes it takes a week). In any case, there is no need to rush and dig up the soil, risking spoiling the seed. It is better to wait a little longer. But if the seeds never sprouted, there may be several reasons for this.
Non-compliance with storage conditions. Branded packaging helps to preserve the seeds from moisture, parasites, infections and other negative influences. If it has been opened, it is recommended to plant the seeds as soon as possible. By the way, the rule only works for proven cidbanks and stores. If the grower chose some unproven organization, then no precautions will help here.
Shelf life. If the seeds have not been stored properly, they will fall into disrepair much earlier than the date indicated on the package. Problems with germination will also occur if you have very little time left before the expiry date.
Infection. Sometimes the seeds may already have arrived at the grower infected. All kinds of dubious producers are guilty of this, neglecting the conditions of packaging, storage and transportation. In this case, it is easy for an infection to enter the seeds from the outside. They will look healthy, but they will not be able to germinate. One piece of advice is to buy only from trusted stores and sidbanks.
Deep planting. This is a sin of beginners. If you bury the seed too deep, it simply does not have enough strength to make its way to the light. The optimal depth is 8 mm.
Growing conditions. Most varieties are suitable for growing in the open and closed ground, however, there are some that need strictly specific conditions. Seeds are usually accompanied by recommendations for germination, which growers ignore, for which they pay.
Poor soil quality. Hemp, like other plants, has certain requirements for soil characteristics. The main thing is good drainage and friability. This will allow oxygen to penetrate and avoid unnecessary moisture. If these conditions are not met, the sprout will simply suffocate or rot. The pH level and sterility are also important. In a too acidic or alkaline environment, or in an infected soil, the seeds will not germinate. When growing cannabis in indoors, it’s best to buy the soil mixture from a trusted store and prepare the soil with outdoors – loosen it, fertilize it, etc. (according to the recommendations to the variety).
Soil temperature. For outdor growers, it is especially important to track soil temperature. It is optimal if it does not fall below 8-100 C at night. However, some need warmer conditions or, conversely, there are varieties that can germinate even at 1-30 C.
Too much moisture. The substrate in which seeds are germinated does not require constant watering. Excessive amounts of moisture will only harm (rot, mold, death). You need to moisten only when it is dry. It is better to water with a pipette 1-2 times a day. Depending on the soil and environmental conditions, you can increase the amount to 5-7 times. Excessive watering can lead to another cause of failed sprouted seeds – flushing. Under an abundant stream, they can sink heavily into the soil or be washed into a corner of the container. It will be difficult to germinate in such a case.
Lunar phase. Gardeners around the world use the lunar calendar to plant a wide variety of crops. There is no official scientific confirmation of it, but you can’t argue with the tomatoes at grandma’s bed (they are planted according to this calendar, bloom, turn green and all that). Many growers plant cannabis seeds according to the lunar calendar, too. The theory is that during a new moon, the gravitational effect is minimal, meaning water is not attracted to the moon, but goes deep into the soil, not reaching the seedling. This will require more force from the seedling. The last quarter of a full moon also has a strong effect, at this time it is the opposite and minimal effort is needed for germination. Therefore, if the seeds suddenly do not germinate, perhaps the grower planted them on the wrong day.