Cannabis grow guide

A place for all those posts related to cannabis cultivation. From seed to flower, you will get all the necessary information for a perfect crop. You will also know how to correctly dry, cure and store your buds, to enjoy these blessings of Nature at their full organoleptic potential.

1. Cannabis grow reports

Growing marijuana with Metrop nutrients

We present you here Metrop nutrients, a complete range of highly concentrated fertilizers for plants that provide excellent results when used with cannabis. We tell you how to use them to get the amazing results that you'll see in this article.

Grow report of Zombie Kush

In this post you have a grow report of Zombie Kush, a cannabis strain developed by the guys at Ripper Seeds that is incredibly easy to grow and provides excellent results, both indoors and outside. Doubtless, a variety worth trying!

Organic grow of Prozack with 280W Phytolite LED panel

In this post you'll see the performance of Prozack from Medical Seeds under a LED lighting system and with solid organic nutrients. You'll also see the spectacular BHO that was made from these plants.
  • Grow report – Karibeña from Kannabia Seed Company In this post we present you a grow report of the Karibeña cannabis strain preformed by the breeders from Kannabia Seed Company, where you can see how they grew this variety and the excellent results [...]
  • Grow report of Fruity Jack / Jack el Frutero If you haven't heard of the Jack el Frutero marijuana strain yet, which was the winner of the 2015 Canary Islands Cup, you will find this growing report truly interesting. Find out everything about [...]

2. Cannabis pests and diseases

Fungus gnats and cannabis plants

On this article you'll learn about fungus gnats, a very common pest in greenhouses and indoor grow rooms. We tell you how to identify, manage and eradicate a pest of these small flying insects and keep your garden clean and lush.

Alternaria in the cannabis crop

In this post we will explain you about Alternaria, a pathogenic fungi that affects both people as to a large number of plants and agricultural crops. To know what it is, how it propagates itself and what you can do to prevent or control its appearance will be of great help to keep this fungus away from your crops and maintain your plants healthy and strong.

Fusarium and cannabis plants

Fusarium can quickly ruin an entire crop, being particularly difficult to treat once it has infected the plants. In this post we explain what exactly is Fusarium, how it grows and what can we do to prevent its appearance.
  • How to combat aphids on marijuana plants On this article we tell you how to identify, treat and eradicate an infestation of aphids on your plants. These sucking insects can quickly ruin your crop if not managed properly, especially if [...]
  • Mealybugs on cannabis plants Mealybugs normally affect plants grown outdoors. They feed by absorbing the sap of the plants, so if they aren’t detected and treated in time they can cause serious problems and compromise the [...]
  • What is Mildew and how to combat it ? In this post we explain everything you need to know about Mildew, from its procreation until how to fight it. Once more, we suggest you to do prevention with ecological products to avoid the [...]
  • Root rot on cannabis plants In this article we tell you about root rot, a disease caused by different root fungi that attacks a large number of plants, causing severe damages in numerous crops. Although it’s almost impossible [...]
  • Introduction to cannabis pests and diseases A brief summary of common pests and diseases that affect cannabis plants. Insects, aphids, molds, viruses...we have lots of potential enemies for our plants, and managing them properly is a key [...]
  • Cannabis viruses Plant viruses may be confused with a number of pests or feeding problems, so proper identification is crucial when dealing with them. In this post we tell you which are the most common types of [...]
  • What is Pythium? In this post we talk about the Pythium fungus and how it affects marijuana plants. We also discuss how to control and eradicate this pathogen which is capable of quickly destroying our favourite [...]
  • How to get rid of Thrips in cannabis plants Thrips are a very common pest in cannabis plants, especially in indoor growing spaces or greenhouses. If you want to know ore about this pest and how to treat your plants to get rid of it, read this [...]
  • How to control Whiteflies on marijuana plants Whiteflies are small flying insects that can ruin any crop if they have favourable reproduction conditions. In this Post we explain a little more about this insect, how to prevent its appearance and [...]
  • What is Botrytis or Gray Mold? What is botrytis or gray mold? Which are the symptoms and how to avoid this fungal attack? Are there any strains especially resistant to botrytis? In this post you'll find all the iformation on this [...]
  • Red Spider Mites Spider mites are one of the worst pests that can attack marijuana plants. It can completely destroy cannabis crops, specially indoors. In this post we explain the environmental conditions that favour [...]
  • Caterpillars on Marijuana Plants In this post we present you one of the most devastating pests for the marijuana plants, the feared caterpillars which destroy the beautiful buds making lose a big part of the harvest to the outdoor [...]
  • Powdery Mildew fungus on marijuana plants Powdery Mildew is a fungus that is increasingly present in marijuana crops. If it isn’t done an appropriate treatment it can be very damaging to our plants because it destroys totally the resin. We [...]

3. Guide for choosing your marijuana strain

High yielding cannabis strains

Which are the most productive cannabis varieties? If we are looking fr yields, should we use feminised or regular seeds? What about automatic strains? Is the Big Bud the highest yielding variety? Here are some examples to help you choose the best genetics in regard with productivity.

Basic nomenclature of cannabis genetics

It is not rare to see novice growers wondering what IBL, BX or S1 mean. While they may seem useless, these acronyms give plenty of information when we know their meaning. In this post we tell you some basic concepts of cannabis genetics so you can fine-tune your choice when purchasing seeds.

Characteristics of Sativa marijuana strains

Cannabis Sativa strains are known for their long flowering periods, tall size and very special effect, happy, creative, cerebral and especially psychedelic. In this post we tell you about Sativa plants, their main features and the different types of effects and flavours that they can produce.
  • Indica marijuana characteristics The main features of Indica marijuana strains are their short size, fast flowering and narcotic effect (medicinal in some cases). Indicas are easier to grow than Sativas, they are shorter and have [...]
  • Marijuana seeds for Indoor growing When starting an indoor cannabis crop, many growers ask themselves: what type of seeds should I grow? In this post we tell you the main advantages and disadvantages of different marijuana genetics [...]

4. Harvesting and Processing

Introduction to cannabis tasting

In this article we will introduce you in the exciting world of marijuana tasting, both organoleptic as psychoactive. From the moment we open the container with the sample until the last exhalation during the tasting, a torrent of sensations perceived by the five senses invade our body. What we will try here is to classify and to note down these sensations evaluating them according to the taste of each one. What better way to pay tribute to the buds of that we have been taking care for months?

How to store marijuana buds

In previous posts we told you when to properly harvest your plants and dry them. Now we'll learn the basics of storing our buds, so we can enjoy first quality marijuana throughout the year. Storing is a key aspect of cannabis cultivation, the time when almost all work is done and we only have to keep our top grade buds with their psychoactive and organoleptic features intact.

Marijuana bud trimmers

In 2001, at the Cannabusiness fair held in Castrop-Rauxel (Germany), the Kermith trimmer machine could be found at one of the stands. Since then, marijuana trimming machines have gradually specialised. Here we present some of the most popular trimmers. Happy harvest!
  • Drying and curing marijuana buds In this post we tell you all the needed steps to properly dry and cure your marijuana harvest. It is nonsense caring about our plants and then forgetting this important [...]
  • When to harvest marijuana plants according to trichome ripeness Here you have a translation of an article from TGA Subcool about the harvest of cannabis plants. Both the effect and taste of marijuana are directly related to its harvesting time. How to know which [...]
  • When to harvest marijuana plants? In this post we will see the 3 main points to consider to harvest our marijuana plants at the optimum time. Seedbank recommendations, pistils colour and trichomes size and colour will help us to [...]

5. History of marijuana strains

Critical Mass by Mr. Nice, a legendary cannabis strain

Since its development before 2000, Mr. Nice Seedbank Critical Mass has become one of the most popular, grown and awarded genetics in Europe, especially in Spain. In this article we take a look at the origins of this strain and review some of the best Critical Mass hybrids found in the market today.

The origins of Haze

Almost everyone knows the Haze marijuana. This sativa cannabis variety has earned its reputation thanks to its psychedelic effect and characteristic very spicy taste much appreciated by the Dutch smokers. This article will explain about the origins of this glorious plant, later used in the creation of the world's best-known varieties.

The Origins of Diesel

The Diesel genetics represented a very important contribution to the cannabis world. The spectacular organoleptic traits of most of its specimens, as well as its strong cerebral effect, make Diesel varieties a real treasure for many growers and breeders, who are constantly amazed by the quality of this strain. In this post we tell you the origins of this genetics, how and where it came in and which were the first hybrids developed from it.
  • The origins of Skunk The Skunk is, probably, the most renowned marijuana genetics worldwide. In this post we tell you the origins of this legendary strain, a true wonder for the cannabis [...]
  • The origins of Northern Lights Northern Lights is one of those legendary strains of which everyone has heard about at some time. Coming from Afghani genetics, it became one of the most used strains to create new varieties. Today, [...]
  • The origins of Blueberry The Blueberry has become one of the most popular cannabis strains around the world. Developed during the 70's in the USA by DJ Short, hundreds of hybrids have been developed from it over the decades, [...]
  • Dutch Passion’s Think Different auto Dutch Passion presents here its new autoflowering strain Think Different, an excellent choice for anyone willing to try automatic genetics. European grower "Tang" tells us his feelings about it, [...]
  • All about Orange Bud from Dutch Passion In this post, Alchimia and Dutch Passion discuss about the Orange Bud variety, a true classic from the 80's that has created its space in many gardens of both beginner and experienced growers. If you [...]
  • Presentation of TGA Subcool’s breeder TGA Subcool is an American seed breeder specialized in strains with strong medicinal potential, which has gained a great reputation amongst growers, conoisseurs and cannabis clubs and dispensaries [...]

6. Indoor marijuana growing

Vapor pressure deficit (VPD) in cannabis cultivation

Temperature and relative humidity play an important role in indoor marijuana cultivation since much of the plant's activity depends on these factors. Incorrect values of these two parameters will result in an invalid VPD (vapor pressure deficit), which will in turn result in poor plant development. In this article we explain how to properly adjust these values so our plants can enjoy a good climate for an amazing development.

The effect of cold on cannabis plants

In this post we show you which methods you can use to avoid the cold in an indoor cannabis crop. There are various modes to keep a stable temperature during the winter so you can choose the resolution that best suits to your indoor or greenhouse crop for personal use.

Growing cannabis in Rockwool

In this post we focus on explain the functioning of a hydroponic crop with rock-wool, pointing out the different steps to follow to get a successful cannabis crop using this substrate. We will highlight previous steps to the crop as it are the reproduction of cuttings, the seed germination in rock-wool or the stabilization of the Ph level of this substrate, etc.
  • How to set up a magnetic ballast In this article we'll show you how to install, step by step, a 250W ETI magnetic ballast. We will see how to make all the necessary connections to have it working without [...]
  • Ballasts for growing cannabis plants Ballasts or power supply units are needed to use HPS or HM bulbs on indoor marijuana crops. In this post we explain the different types of ballasts that can be found on the market, as well as their [...]
  • Electrical conductivity and cannabis The electrical conductivity or EC is the ability of a material or liquid to conduct electric current. In this article we explain you how important it is to control the EC levels for a healthy and [...]
  • Light-Reflectors for growing cannabis indoors Here you have some of the best grow light reflectors for indoor lighting systems, from the simplest models to the most modern and efficient [...]
  • Growing cannabis with Botanicare nutrients In this post we present a grow report of the Bubble OG Kush with Botanicare products, a range of nutrients that has achieved impressive results in this test crop. We encourage you to read this post [...]
  • Basic tips for growing cannabis indoors In this growing diary we tell you the basic tips for successfully growing your own marijuana at home. From the type of substrate to the moment of harvest, you'll learn the most important aspects of [...]
  • Growing regular cannabis seeds indoors In this post we show you a grow report of regular cannabis seeds for those growers who want to use these seeds in their crops. Learn the small differences that exist between growing feminized and [...]
  • Smell control in the cannabis grow room In this post we would like to present some options for keeping the intense smell of cannabis plants under control. From air fresheners to the most efficient ozonizer, we have many options to [...]
  • How to keep cannabis mother plants Mother plants are commonly used as cutting donors. To successfully keep mother plants for long periods of time, we need to know a few basic aspects that will greatly help us to enjoy our favourite [...]
  • Growing cannabis in small spaces Growing marijuana indoors can be a very pleasant and interesting activity. Not having nough space may seem an issue, but in this post we'll tell you how to make a mini cannabis grow using few space [...]
  • How to store cannabis seeds If we have to store cannabis seeds for a long period of time, we should take into account a few parameters that will highly increase both their longevity and germination potential. In this post we [...]
  • pH and marijuana In this post we tell you about pH and how important it is for having healthy and lush cannabis plants. Either in soil or inert substrates, adjusting the pH value is very important for our plants to [...]
  • BioTabs organic marijuana crop in coco In this post we show you a grow report with BioTabs fertilizers, a range of slow-release organic fertilisers that will help indoor and outdoor growers to get top quality buds easily, both in soil and [...]
  • Growing cannabis cuttings Cannabis is an excellent plant for asexual reproduction. It roots very easily and is an ideal plant species to perform propagation by cuttings. We only need a small greenhouse, scissors, rooting [...]
  • Growing marijuana with energy saving lamps In this post we show you the advantages of growing marijuana with energy saving bulbs. In addition to getting a proper supply, there are other very important factors that make this type of culture an [...]
  • Growing marijuana in grow tents In this post we list all the factors you need to consider for growing marijuana in a growing tent. Lighting, ventilation (intraction and extraction), temperature and humidity, watering and [...]
  • Ventilation for marijuana grow rooms The ventilation system is one of the most imortant aspects in every indoor cannabis growing setup. Which extractor do I need for my growing space? Are intractors and interior fans really needed? Do [...]

7. Marijuana growing systems

Aquaponic Cannabis Cultivation

Aquaponics combines fish farming with the cultivation of plants. It has a long history and can be used to grow a large variety of plants including marijuana. Both warm and cold water fish can be used. This article explains the basic concepts of aquaponics and how to set up a system that will maximise yield and quality.

The SOG cannabis growing method

The Sea of Green - SOG - marijuana growing technique highly optimizes the available growing space while allowing us to perform more crops per year than with other systems. In this post we'll tell you a bit about this high-yielding growing method, following all the necessary steps to achieve excellent results.

The SCROG cannabis growing system

The SCROG technique allows us to maximize the yield of our growroom with very few plants by using a single mesh or screen to train their branches. This growing system is specially recommended when growing Sativas, which can grow too much indoors and need some type of training to be grown under optimal conditions.

8. Nutrient deficiencies and excesses in Cannabis

Deficiencies and excesses in Cannabis

This post shows the main deficiencies and excesses of macro and micro-nutrients that can affect our cannabis plants during their cultivation. If you detect deficiencies or excesses in your cannabis plants, you can now learn how to prevent them and treat them in following crops.

Deficiency and excess of Iron in cannabis plants

In this post we explain you about the deficiency and excess of iron in cannabis plants. The best way to control these problems is to know how to avoid them from the beginning. It’s not very common in indoor marijuana crops unless you use an unsuitable substrate or don't have a correct pH value.

Deficiency and excess of magnesium in cannabis plants

In this post we explain how to detect and solve a magnesium deficiency or excess in cannabis plants , either indoors or outdoors.
  • Deficiency and excess of Phosphorus in Cannabis plants In this post we show you how phosphorus excesses and deficiencies affect to cannabis plants. We explain you how to act in case of over-fertilisation or deficiency of this element of great [...]
  • Deficiency and excess of Potassium in cannabis plants In this post we show you how to detect a deficiency or excess of potassium in cannabis plants, so you can have a crop without problems and harvest the best possible [...]
  • Deficiency and excess of Calcium in cannabis plants In this post we show you how to identify calcium deficiency in your plants. This nutrient imbalance is difficult to detect, so you must pay close attention to the development of your marijuana [...]
  • Micronutrients and Marijuana plants In this post we explain you the different micro-elements that the plant needs, as well as their role, so you can identify and correct the possible deficiencies and excesses that marijuana plants can [...]
  • Deficiencies and excesses of nitrogen In this post we will show you how nitrogen acts on the metabolism of cannabis plants, and you will learn a simple way to find out when your plants have deficiencies or excesses of this [...]

9. Outdoor cannabis growing

Growing automatic cannabis plants outdoors in Smartpots

In this article we will show you the diaries of two automatic cannabis strains from Royal Queen Seeds and Samsara Seeds, to test the utility of the Smart Pots. To do this, we will carry out an outdoor crop sowing two seeds, one of each variety, in a smart pot of 18 L. To compare them we will sow other two seeds, using a traditional rigid white lower pot and a Smart Pot of 11 l. Next you will find the entire development process and lots of photos of the all growing phases of plants grown indoors.

Soil Food Web Gardening

Sadly, many times growers don't know what is happening below the ground. Bacteria, fungi, nematodes, protozoa, arthropods, earthworms...all of them are creating a perfect environment for the roots of our plants, and taking profit from it is a wise decision by the farmer. In this post we tell you more about Soil Food Web gardening, a technique which is increasingly used worldwide.

Growing marijuana in plant pots

How to grow marijuana in soil? What kind of soil and fertiliser should we use? What is the micro bacterial life? Which plant pots should we use and how to transplant from one pot to another? Next you’ll find all the answers to these questions and a lot more tips to improve and optimize your soil crops...
  • Off-season marijuana crops outdoors Many areas offer the chance to perform several outdoor crops per year. We don't need to be in Tropical zones and have an almost constant natural photoperiod to do so. By using autoflowering seeds or [...]
  • Growing marijuana on terraces This post shows you, step by step, how to grow marijuana on your terrace or balcony. This way, you can get the best marijuana in the world...yours! We would also like to remind you that organic crops [...]
  • When and how to move marijuana plants outdoors In this post we show you the best way to move your marijuana plants outdoors avoiding the onset of flowering. Many growers, for one reason or another, grow their plants indoors and bring them to [...]
  • Growing marijuana in the ground In-ground marijuana crops give us the opportunity to offer our marijuana plants full freedom for their development. In this post we show you all the necessary steps to optimise the performance and [...]
  • How to hide your marijuana crop In this post we show you a simple technique to hide marijuana plants camouflaging them in trees from gardens, lawns or your private land. In this way we prevent the nosy and curious from spotting our [...]
  • Growing marijuana basing on latitude Growth and flowering of cannabis depends directly on the hours of light to which the marijuana plant is exposed, so it is very important to be aware of the geographical area in the world where each [...]