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10 key parameters for creating optimal conditions for growing cannabis in the open field.

10 key parameters for creating optimal conditions for growing plants in open ground.

Theoretically, hemp is easy to grow, but in reality, growing high-quality marijuana outdoors can be more difficult than it might seem at first glance. However, if you pay a little attention to the key parameters that we will show you here, you will be on the right track.

Genetics

Choosing the right cannabis strain for outdoor cultivation is paramount. Depending on your location and climate, you may be limited in your choices. Growers in warmer climates have a bit more freedom when it comes to choosing, as mild winters and long summers provide ideal conditions for growing cannabis.

However, if you are going to grow cannabis plants in colder climates, when the autumn rains are already in late September, it is best to choose varieties with a short growth cycle, that is, varieties that can be harvested in the second half of September. And if you live in a region where mild weather lasts only 2-3 months, which means a short outdoor season, your best bet is definitely to opt for autoflowering cannabis seeds.

Temperature

It is very important to have a good understanding of the climate in your area. Hemp does indeed adapt well to a variety of growing conditions, but it is sensitive to extreme climatic conditions. If temperatures consistently exceed 86°F, your plants will suffer greatly; whereas sustained temperatures below 50°F can also cause damage and stunting. This means that the best temperature for growth is in the range of 59 to 77°F. Cannabis plants can still survive outside this range, but temperatures below 41°F can quickly damage most cannabis strains. So if you live in an area where frost is quite common in late spring or early fall, try using a greenhouse or other indoor space.

Wind

A constant breeze is great for cannabis plants as it helps strengthen their branches, making them more resistant to the weight of the buds. But if you live in an area where strong winds often blow, consider placing the plants next to some kind of windbreak, such as a wall or large bushes; or you can just place some plastic sheets on garden stakes around the plants. This will prevent branch breakage and general stress. However, trellises are always the best option, especially if the plants are very large. This ensures that the branches are always supported and can easily support their own weight.

Rain

Rain is sometimes helpful when growing outdoors, but growers usually find it a problem. Rain can seriously damage your plants and encourage mold and mildew, especially during the flowering period. You can build a greenhouse with your own hands, or just use some plastic sheets on stakes to create a temporary shelter that you can easily place above your plants when rain is forecast.

Humidity

When you grow outdoors, humidity control is out of your hands. The ideal level of relative humidity (i.e. the amount of water present in the air relative to a certain temperature) differs from one variety to another. Plants grown in warm and tropical regions grow better in high humidity levels than plants from cold or warm regions.

Optimal moisture levels also vary depending on the growing condition. For example, seedlings need higher levels (between 70 and 80%) so that they can focus all their resources on developing a strong root mass. During the vegetative phase, the humidity level should remain high, but slightly lower than at the beginning (60 to 70%), while at the beginning of the flowering phase it should range from 50 to 60%, and during flowering from 40 to 50%. the second half of the flowering phase.

The sun

You should also have a good idea of how the length of the day changes from one season to the next. This is very important so that the plants can smoothly transition from the vegetative phase to the flowering phase. Generally speaking, cannabis plants love the sun, so they should get as much direct sunlight as possible, ideally at noon when the light quality is optimal. As the summer season comes to an end with the arrival of autumn, the plants will receive less and less sunlight during the day, which will trigger the flowering phase. The angle at which the sun's rays hit the planet's surface is also a factor to consider. This angle varies depending on the latitude of the region. For example, southern areas in the northern hemisphere will receive more light, while in the southern hemisphere it would be preferable to grow in a north-facing garden for the same reasons.

Earth

Can be planted directly in the soil or make your own substrate. Cannabis plants require well-drained soil that is rich in organic matter.

Heavy clay soils drain slowly and hold oxygen poorly, so they require the addition of compost, manure, worms, or other decomposed organic matter, which are a good source of nutrients and improve aeration and drainage.
Sandy soils are easy to work with. They drain well and warm up quickly, but retain nutrients poorly, especially in rainy weather. Again, you will need to add compost, peat moss, or coir to fix this problem.
Silty soils are a mixture of the two previous types. This type of soil is commonly found along riverbanks and is an ideal environment for growing cannabis plants: it is easy to work with; retains moisture well; has good drainage capacity; and it is rich in nutrients.

pH

The optimal pH values for cannabis plants range from 6 to 7. However, there are slight differences between them depending on the different phases of evolution: the optimal pH values for the growth phase range from 5.8 to 6.2, while in the flowering phase they can be higher (up to 7). These parameters make it easier to take in nutrients so that plants can develop to their full potential when pH values are above or below these numbers.

Irrigation

Even if you're growing outdoors, you'll probably need to water your plants frequently, especially during the hot summer months, because high temperatures and winds will cause them to evaporate faster. It is best to water in the morning so that the plants have a good supply of water during the day. However, you need to be careful: overwatering is a common mistake among beginner growers. The general rule is to water generously and then wait until the top 5cm of soil is completely dry before watering again.

Plague

Without a shadow of a doubt, plague is one of the biggest problems with outdoor cannabis cultivation. You can always use pesticides to keep insects away, but if you want a truly organic product, your best bet is to plan your grow completely to include companion plants like basil, chamomile, dill, lavender, etc. Some of these plants attract beneficial properties. insects, while others deter predators. In addition, most of them enrich the soil, which in turn promotes growth.

Another alternative is to choose biological pest control methods, i.e. the use of insects that attack and eat harmful insects. It is a natural remedy that is easy to use and prevents the use of chemical pesticides. In order to successfully apply this method, you must know that every species that can attack your cannabis plants must be fought with the corresponding antagonist. For example, you'll need a good army of ladybugs to get rid of an aphid plague, and spiders are a favorite food for lacewings.

Last but not least, please remember: if you are growing outdoors for the first time, there is no doubt that things will not go so smoothly. But don't forget that practice makes perfect! So make sure you don't get discouraged by the challenges ahead.

  • 10 key parameters for creating optimal conditions for growing cannabis in the open field.