Indoor marijuana growing

Tips and advices for a successful indoor cannabis crop.

Cannabis Re-Vegging

Cannabis Re-Vegging

As we all know, cannabis is an annual plant that goes through different stages during its life cycle; from germination, growth and flowering, to harvest. After harvesting your marijuana buds, you can no longer benefit from the plant or its genetics, unless you remembered to take some cuttings during the vegetative phase.

What happens when you realize too late, during the flowering period, that you should have taken some cuttings from that specimen of unique nature?

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Deep cleaning your grow room or tent

Deep cleaning your grow room or tent

Now that the heat of summer is upon us, and before it ends, many growers will decide to shut down their indoor grow operations until conditions cool down in the autumn. This is partly because their attention shifts towards growing outdoors while the weather is favourable, but it's also because of the increase in ambient temperatures. The hot days, combined with the heat produced by powerful grow lamps, make it a real challenge to maintain the ideal conditions in our indoor garden. With the advent of good quality LED lights and affordable air conditioning these problems are somewhat reduced, but even so, much of Europe still gets far too hot to allow trouble-free indoor cultivation in summer.

So, while your indoor grow area is temporarily out of commission, there's no better opportunity to give your grow tent a thorough deep clean and at the same time double-check that all your equipment is in perfect working order so you're prepared for the much anticipated first crop of the autumn!

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How to optimise your cannabis grow with CO²

How to optimise your cannabis grow with CO²
CO² boosts cannabis growth and vigour

CO², also known as carbon dioxide, occurs naturally in the atmosphere at a ratio of 300/400ppm. Bearing in mind this is the main inorganic component used by cannabis plants to build their tissues, an additional provision of CO² with the right assimilation conditions will result in faster, more robust and productive marijuana plants.

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Overwatering cannabis plants

Overwatering cannabis plants

Water is essential to life; without water, nothing thrives, but like everything else, too much of a good thing can be harmful. Today we’re going to explain how overwatering affects cannabis plants during their life and different stages.

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pH meters and cannabis cultivation

pH meters and cannabis cultivation

The key to successful cannabis growing lies in proper plant nutrition. It's true that every environmental factor should be adequately laid down in order to maximize the outcome of your crop: air exchange, type of lighting, temperature, humidity, etc. However, it would be pointless to choose a complete and balanced range of fertilizers if you are not taking into account the pH of the nutrient solution, or in other words, the acidity or alkalinity level in the feed you are giving to your plants.

To ensure proper nutrient uptake through the plant's root system, each macro and micronutrient in the marijuana feed must be administered with regard to a particular acidity value (pH), otherwise the absorption won't be adequate. This factor is very important to make the most of the fertilizers and to prevent nutrient deficiencies and overfeeding problems, thus obtaining a bountiful harvest.

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How to use plant hormones in cannabis cultivation

How to use plant hormones in cannabis cultivation
Lentil sprouts are a great source of auxins, and in this photo are a perfect example of Phototropism (credit: Russell Neches)

You're probably aware that the hormones we humans produce can have a marked effect on our behaviour, metabolism and physical development, but it's not just us that do this, it's a common trait to almost all other organisms, and even plants synthesize hormones too. Over the course of a plant's life cycle, almost all aspects of its activity, of its growth and its development, are controlled by these organic chemicals that the plants naturally produce for themselves, and which we call phytohormones.

These plant hormones not only regulate the morphology and metabolism of plants but also determine how the plants respond to environmental factors such as stress and physical damage caused by weather conditions, pests or pathogens. In this article, we'll take a look at the most common phytohormones, the effects they have on plants, and some ways that gardeners can harness the huge potential of natural plant hormones to their own benefit.

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How to improve the production of cannabis trichomes

How to improve the production of cannabis trichomes

As most of you already know, cannabis resin is in fact an accumulation of trichomes secreted by the plant, which contains the highly regarded cannabinoids and terpenes that give marijuana its particular and unique aromas, flavours and effects. Coinciding with the steady increase in popularity of extractions and concentrates in recent years, the resin production of a particular strain or plant is a trait that is becoming more valued by growers and extracts producers who refuse to invest time and effort in the cultivation of plants with a small amount of trichomes.

https://www.alchimiaweb.com/blogen/harvest-marijuana-plants-trichome-ripeness/

Of course, this interesting trait has a lot to do with the plant's genetics. Parental crosses that produce a big amount of resin have a much higher probability that their offspring also stand out in this department, so more and more breeders are now using the most resinous strains available in their projects. Nevertheless, and regardless of the resin production "dictated" by the genetics of each strain, you, as a grower, can use a number of tricks that will make your plants produce more trichomes, which ultimately will mean better buds with a more intense aroma and a more powerful effect. Below we explain some of these tricks, as well as others that can help you to increase your production of cannabinoids and terpenes.

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Flushing cannabis plants

Flushing cannabis plants

Flushing your cannabis plants

Cannabis is one of the few plants in the world, together with the vine, which contains a large number of terpenes. When mixed, these terpenes generate new flavours and smells that caress the taste buds like candy. To obtain this type of flavour and enjoy buds of the best quality, you must make sure the plants are nutrient-free at the moment of the harvest.

If the plants have an excess of nutrients in their metabolism, the organoleptic properties of the buds will be ruined by the high amount of salts accumulated in them. When combustion takes place, it will release harmful particles that, aside from leaving a bad and very unpleasant taste in your mouth, could make the joint spark due to the excess of mineral salts.

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Cannabis roots: A complete guide

Cannabis roots: A complete guide

What are the roots?

The roots are the first organ of the plant to come into direct contact with the surrounding growing medium after germination. Most plants have three types of roots: the main tap root and the fibrous roots, which grow into the ground, and are often invisible to the naked eye; and adventitious roots, which can sprout from the aerial parts of the plant, such as the stem, and grow towards the substrate.

The cannabis plant has all three types, but the adventitious roots are less common and only grow in environments with high and steady humidity levels. The ability to produce adventitious roots is what makes cannabis so suitable for propagation via cloning.

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The Photoperiod of cannabis plants grown indoors

The Photoperiod of cannabis plants grown indoors

When we talk about photoperiod, we mean the daily hours of light and darkness that any given living organism receives, while photoperiodism refers to the physiological reaction provoked by the length of day or night, and the way it affects the behaviour and development of these plants and animals.

In botany, each subspecies has its own specific photoperiod, but plants can be classified into three groups: short-day plants, long-day plants and day-neutral plants. Cannabis is a short-day plant (with the exception of Cannabis Ruderalis autoflowering varieties), which means that it needs long nights with over 12 hours of uninterrupted darkness to trigger flowering.

In the plant world, both the light intensity as well as the daily hours of light/darkness determine the biological functions of organisms, such as seed germination, growth, flowering and maturing processes. In this way, the development of plants can be activated or suppressed depending on lighting conditions, meaning that, for example, most plant species are unable to flourish unless they receive a certain number of hours of darkness.

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Light Meters in Cannabis Cultivation

Light Meters in Cannabis Cultivation

A common mistake among many beginner indoor cannabis growers is that of not changing lightbulbs often enough, so while the first few crops are a roaring success, later grows, despite having all the same parameters, don't produce anywhere near the same quantity of buds. Why might this be? On many occasions it's because you are using a grow lamp with far too many hours of use behind it.

High intensity discharge bulbs, such as HPS, HM or CMH/LEC are, with use, gradually diminishing the amount of light emitted, so (although at first glance we may not realise it) after several crops we can find bulbs that are delivering half the lumens than when we first fitted them. In addition, at each phase of its development, the plant will require a maximum and a minimum of lumens to grow and flourish in a normal way.

In this article we will see how to use a light meter to measure how much light is emitted by our lighting systems, as well as the ideal range of light intensity for each phase of our plants development.

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Types of grow lights for indoor cannabis cultivation

Types of grow lights for indoor cannabis cultivation

How do we light our cannabis growing space?

When we decide to set up an indoor cannabis grow for personal use at home, there are many factors to take into account if we want to get the best results, but one of the most important to consider is the type of light and its power consumption.

When deciding on the type of light to use, we must keep in mind that each technology has its different advantages and disadvantages with respect to growing cannabis. Certain types of bulbs will offer the best yield (lumen per watt) but at the same time they are a considerable heat source that can cause problems to many growers, especially those that live in particularly warm climates or are only able to grow cannabis in small spaces.

On the contrary, other types of illumination emit almost no heat at all, although often the high price of this kind of lighting, combined with its lower effectiveness when compared to other systems, combine to make them less popular. They are, however, indispensable to the many indoor growers that can only cultivate cannabis successfully thanks to the low heat emission of these lights.

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Causes of death in plants during the growth period

Causes of death in plants during the growth period

Causes of death in cannabis plants during the growth period

The vegetative growth of cannabis plants can be one of the longest periods of cultivation when growing outdoors - or indoors - where in, for example the countries of southern Europe they enjoy a lengthy spring and summer. During the course of this growth phase, problems can arise that may lead to the death of the plant even before the flowering stage begins.

Let's see what are the most frequent causes of death during the plants' growth period and what we can do to avoid a premature, unhappy ending.

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How to increase sugars in cannabis plants

How to increase sugars in cannabis plants

Carbohydrates or sugars in the cultivation of cannabis

What are carbohydrates?

Carbohydrates are a group of compounds that include sugars, starches and cellulose among many other substances. These are formed by carbon, hydrogen and oxygen.

They are vitally important compounds for both plant and animal life. They perform vital functions so that plants can develop healthily and problem-free in all stages of their life and also serve as a source of food for the animals that feed on plants.

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Humic and fulvic acids for cannabis plants

Humic and fulvic acids for cannabis plants

The use of humic and fulvic acids is becoming increasingly popular among all types of cannabis farmers, who can now take advantage of a healthy, rich and living soil that produces happy plants and therefore abundant harvests. Thanks to this substances, nutrient uptake and management are much more efficient, and root growth is simply spectacular.

Either if you're using organic soil or hydroponic systems, using  humic and fulvic acids is a very easy way to ensure the best possible conditions for the roots of your plants. Indeed, it is especially recommended in hydroponic cultivation since these types of growing media do not contain nutrients nor microbial life. In this way, you get the most out of the nutrient solution that you've carefully prepared for your plants.

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