Germinating marijuana seeds outdoors

When to germinate your seeds for outdoor cultivation?


Sometimes, it is difficult to know what the ideal time is to do so, and getting caught up in the emotion of the moment anticipating the times of germination is a very common mistake. Below, we explain how to establish the best time depending on the area you live in. Practical and simple tips that will allow you to choose the optimal date. Let’s go see.

Germination of plantula cannabis seeds

Tip: Check your anxieties

It is very common to be caught up in the excitement and desire to start planting. It’s normal, it’s all winter waiting for this moment and now that it’s here you can’t wait to get started. And when we talk about outdoor cultivation, this is one of the most common mistakes: planting before time. The spring weather is very unstable and can play tricks on you: it’s important to be careful.

Soon and well they’re not together

According to popular belief, planting first speeds up the process and anticipates the harvest. That’s not true: by anticipating the times you won’t have bigger, better plants or harvest sooner. It is better to check yourself and wait patiently for the best time, when the good weather will stabilize.

In the first phase of the plant, temperature changes can be fatal, because the small size makes it weak and sensitive, and if we do not guarantee the continuity of hours of sun and good weather, it may not grow with the necessary vigor or even die.

In the case of autoflowering varieties, if you hurry you can pay dearly. The life cycle of this type of genetics is very short and a bad start can be terrible. Having only two and a half months of life, if in the first two weeks it is not good weather, the plant will remain blocked and when the sun arrives and manages to regain strength it will be too late.

Germinate outdoor marijuana seeds earth

In both cases, both with automatic seeds and with regulars or feminized, it is advisable to avoid the error of anticipating the times. The difference between one and the other concerns the life cycle: in the case of regular or feminized, having a higher vegetative development time, that is, a longer growth period (about 3 months), the recovery margin is greater and this initial error is not so serious.

Let’s take an example…

Let’s imagine that good weather comes: suddenly, for two or three days, there is a sun that breaks the stones. Put your coat back in the closet and start pulling out your summer clothes, you feel like the sea, outdoor tables… So you get your spirits up and decide to start sprouting your marijuana seeds, because you don’t have to put off until tomorrow what you can do today. And you do. After a week, your little ones are ready to face the world, planted in the pot and outside, which take advantage of the good weather. Big mistake.

It was all a dream, an illusion: the spring season has a habit of making great bad jokes and the following week it rains down. Your plants, which barely took their first steps, are found in a completely flooded substrate, the few roots they had developed are submerged by water, the leaves do not grow, and the plant freezes. In the case of autoflowering plants, when plants come back into force it is already too late, because they have only a month of growth (they begin to bloom from about 25-28). So, the end result will be a disaster. At best, you will have very small plants that will give poor and poor quality production. At worst, they’re going to die.

If you have sown feminized or regular, the growth time triples, and instead of 4 weeks, you need 12. This grants a higher margin, and although at first they suffered, there comes a time when the plant can recover and take a growth shot. In any case, it is always preferable to keep climatological factors in mind and to germinate at the appropriate time. The less stress the plant is subjected to, the better the end result will be.

Keep in mind the climate of your area

The time of germination varies depending on the area. Depending on where you live, we are not talking about the same climatic conditions and, therefore, the date will also change. Despite the great availability of information to guarantee the right date, we advise you not to take it as something academic: observe the weather and make sure it is beautiful. Anyway, here are some guidance date:

  • Mediterranean climate: Generally, temperatures are milder and the germination period is from April 1 to May 30, although usually the ideal time is in early May.
  • Non-Mediterranean climate (continental/Atlantic/mountain): This type of climate can generally be germinated from 1 May to 30 June. Usually, the most suitable time is in early June.

See how the season begins

Each season is different, it can arrive early or late. For example, as mentioned above, as a rule in the Mediterranean climate the ideal time for germination is late April-early May. But it can happen that, depending on the year, the heat arrives early or, on the contrary, the season starts with very cold and summer extends to september-october. You need to pay special attention to this type of variation to adapt the cycle of your cultivation, anticipating or postponing it.

If you’ve just started growing and your knowledge of botany in general and marijuana in particular is scarce, here’s a secret: ask and observe. The same rules apply to the germination of the cannabis plant as apply to the cultivation of vegetables in general. So when you see your neighbor sow, put your seeds to germinate.

See if farmers in your resort are starting to fill the fields with summer vegetable seedlings. In general, they have been cultivating for a lifetime and are experts in observing and understanding weather signals. If you see them at work with tomatoes and peppers, that’s the signal: it’s time. If you don’t know anyone who is dedicated to this activity, you can always go to the nearest nursery.

Preventing Outdoor Parasites

One of the biggest problems in outdoor cultivation are pests and predators, keep in mind these tips to be able to prevent them effectively:

  • Fungi: Mycorrizic fungi found in the soil help kill nematodes, or soil microorganisms that attack the roots of marijuana.
  • Planting of plants: Plant melissa, dieto or basil in order to repel harmful insects.
  • Predatory insects: Insert predatory insects into crops, such as ladybirds and parasitoid wasps in order to protect plants from pests.
  • Barriers: Install some fences to prevent larger animals, such as birds, from entering to eat cannabis seedlings.

Protect a plant from pollination.

With the aim of obtaining excellent resinous and aromatic buds it will be necessary to defend plants from pollination. Pollinated flowers are small, full of seeds and not very powerful. Farmers must be able to prevent male plants from ending up in the growing space.

If regular cannabis seeds are grown, the sex of plants will have to be determined as they mature with the aim of preventing fertilization.


Germinate your seeds when the solar intensity is sufficient and continuous, in short, it is simple: when it will be good weather. But this is not an exact science, you can not rely on a fixed and unwavering calendar. As mentioned above, the key is to observe the climate, be attentive to the signals and try to cope with the whims of mother nature. You need to make sure the good weather has come to stay.

Make sure the place where you develop your cultivation is south-oriented: ideal would be for your plants to receive about 12 hours of sunshine per day. Finally, we recommend using professional horticultural materials.

Now that you know where to start, you have a good foundation to embark on this adventure on the right foot. Good harvest!

🌿The Grace Genetics  Team 🌿

🌿The Grace Genetics Team 🌿

Cannabis in addition to being our job is also our passion, which is why we always strive to offer our readers quality articles that are always up to date on the latest news from the cannabis world.

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