Our Grow Guide provides you with the 101 on where to start when growing your own cannabis. Maybe you are a more experienced grower by now so it is time to fine-tune your growing skills.

When you have decided to grow your own cannabis, the first logical step is to figure out which seeds you want to use. When choosing, there is a few things to consider. First of all there’s the choice between regular, autoflowering and feminized seeds; you can read what the difference between the three is right here. Besides that, you have to consider growth conditions; will you grow in- or outdoors? How much space and light is available? What’s the climate like?

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To germinate cannabis seeds, there are a few factors that play a role. Cannabis seeds need humidity and warmth to sprout; a temperature between 20 and 25 degrees Celsius is ideal. Besides that, it is recommended to leave the seeds in peace. Do not forget to check if the chosen surface is humid enough.

In soil

The easiest way to germinate seeds is in a little pot of soil; put the seeds 0,5 to 1 centimeter in the soil and dampen. Cover the pot with transparent plastic so the humidity will be contained. The seeds will sprout within one week; as soon as the leaves are sticking out of the soil, the foil can be removed. After a week or two it is time to move the plant to a bigger pot. Make sure the pot is big enough.

In water

Another method to germinate seeds is in water. Put the cannabis seeds in a glass of lukewarm water and place the glass in a place that does not get colder than 20 degrees Celsius. Within 5 days a white root will appear. When these roots have grown up to 1,5 centimeters, the seeds are ready to be transferred to soil with the roots pointing downwards.

In paper towels or cotton wool

With this method, seeds are placed between 2 wet layers of the chosen material. The water must be boiled before using it to wet the material. Consider that with this method the water wil dampen quickly so it is best to create an environment where condensation can take place. You can do so by placing 2 plates on top of each other with the top one upside down for example. Make sure to check the humidity twice-daily! The material should be humid, not wet!

In plugs

Plugs are squares especially developed to germinate seeds and are available in starterkits. Most of the time these starterkits also offer a seedbooster and a transparent grow box with transparent cap. The plugs need to be placed in the grow box before watering them. Wait a few minutes until the water is absorbed and pour out any excess water. Carefully put the seeds in the plugs at a depth of 0,5 to 1 centimeter. Cover with cap.

After sprouting

As soon as the seeds have sprouted, it is important to move the seeds to the medium that will be used during the growth of the plant. Try not to repot the plant too often and make sure the soil I not too wet. When the roots of a cannabis plant are too wet, this will stagnate growth while it could lead to root rot.

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Growing outdoors

Mother nature provided cannabis plants with the ability to adapt to different climates. Through selective breeding by professional seed suppliers, excellent strains that can survive in colder, Northern and non-tropical climates have been developed. When you are growing weed outdoors with high-quality seeds, you will harvest strong weed with deep flavors.

Timing is very important when planting your seeds. Regular seeds “recognize” when summer ends because the days get shorter and the nights longer, this triggers them to enter the flowering phase. Therefore, planting the seeds should be planned in such a manner that harvest can take place in October or November. This usually does not happen after the last late-spring cold spells that frequently bring May frosts. In Europe this event is described by saying the Ice Saint have gone.
To avoid this problem, some outdoor growers start their germination indoors to give their plants a kickstart and let them acclimatize before being planted outside permanently. Plants do not have to be planted inside first; they can easily be planted outside from the start when using a glass or grow house.
When you are using autoflowering seeds, the plants will enter the flowering stage automatically, no matter the light/darkness ratio. On average harvest will be possible after 8 weeks when using this type of seeds.

There are various ways to germinate your cannabis seeds, you can find more information about that here.

Preparing the grow site is one of the most important things to arrange before you start growing. Ideally, the perfect growth site has sun the entire day, easy access while it is still protected from wind and unwanted animal and human attention. In some cases it will be possible to grow in the privacy of your own garden; if this is not the case, you can choose a secluded site in a forest for example. When choosing for a site like this, it is easy to cover the grow site with branches or thorny plants. You can choose to plant these thorny plants around your cannabis plant(s) yourself as a protection for grazing animals and other unwanted guests.

It can be rewarding to fertilize the soil before planting to make sure the condition of the soil is optimal before growth starts. It is also possible to test the soil and act accordingly. Professional soil test kits are available in garden centers. There is no such thing as the perfect soil; cannabis plants grow well in a whole spectrum of conditions as long as there are enough nutrients, good water drainage and a pH between 5.8 and 6.5.
Instead of putting plants straight in the ground in the garden, you can also put your plants in pots. One of the advantages is that plants are easy to move around; they will need to be watered more often with hot weather. Black pots or warm surfaces should be avoided because this can cause the roots to get too hot.

There are many threats for outdoor growers. First off, there are the threats that can also have a negative influence when growing indoors like drought, overwatering, acidification of your medium, low pH-levels or a surplus or shortage of nutrients.
Another element that can threaten your harvest is bud rot or mould. The bigger and more full the buds are becoming, the more chance there is to get bud rot. Because the buds are getting fatter, less air circulation takes place. Especially when conditions are humid and not too much wind, you have to be alert.
A grow site with some wind can ensure extra air circulation. Make sure to check the buds on a regular basis; as soon as you identify bud rot, treat your plants. Read more about the identification and treatment of mould here. [hyperlink Bedreigingen oogst]
Another factor that can threaten your plants are bugs and snails. In general, cannabis plants won’t suffer from bugs easily. If you do find damage because of bugs or snails, you can choose to use an ecological detergent. It is also advisable to remove the bottom branches of your plants to minimize your risk on insects. If you would like to read more on what bugs and pests can threaten your harvest, click here. [Hyperlink Wietplant ongedierte]

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Growing Indoors

When you want to start growing weed indoors, it is important to think about the layout, ventilation, lights, humidity, temperature and other factors that can influence the growth of your plants.

The room

First, think of what room you will grow your plant(s) in. This can vary from a closet to an entire room. Depending on the size of the room you choose, you can decide how many plants you will grow. Indica strains are perfectly suited to grow indoors because they stay short and bulk, whereas Sativa strains grow tall and slim.


After choosing the room, it’s time to make an estimate of how much light you will need. Then you can choose the grow lights you will use; you can read more on that here.
When you are new to growing, it is important to first acquire the main growing skills like watering and fertilizing. Because even when you don’t use growing lights, you will still be able to produce a good harvest.

What kind of medium will you use? Hydrophonics, soil? To help you decide, we wrote an article where you can read how growing with both mediums works.


After choosing your medium it’s time to get the right fertilizer for your plants; it should be compatible with the kind of medium you chose to use. It is also important to make sure the pH-levels of the water you give to your plants is right.


Which weed do you want to harvest? How much room will there be available? Based on these 2 questions, you can pick which seeds you want. You can also ask yourself what kind of weed you like to smoke, with high THC-levels for example or maybe not. When you chose your seeds it’s time to germinate them.