How to Grow Marijuana Outdoors

and get a huuuge harvest

Growing Marijuana outdoors is a great way to get a big harvest.

It is inexpensive and no special equipment is needed.

Outdoor plants can become big and yield huge harvests.

Here are tips on how to successfully grow Marijuana outdoors.

By the way: While growing Marijuana outdoors is easier in a warm and sunny climate, such surroundings are not absolutely necessary.

I have had great results in cold northern Germany, in my parents garden. That’s where most of the pictures in this site have been taken.

But of course, if you live in Australia or other sunny parts of this world, growing marijuana outdoors becomes a bit easier.

So, how to set up an outdoor grow?

Use an outdoor Cannabis strain

There are strains available that have been breeded especially for outdoor cultivation.

These strains finish earlier. They do not need that much time to get to the flowering stage. Also they might be more resistant to humidity and mould.

Start in Spring

The plant has a lifecycle. It will grow tall in spring and the first half of summer.

Once the summer solstice has passed, the female plants will grow less but put its energy into flowers (smokeable buds).

In Australia and South Africa for example, Spring is in October. In Germany and The USA it is late March.

Find the right spot

Your Plants need at least 4 – 6 hours direct Sunlight per day. The more light, the more weight you’ll get at the end.

The grow spot should be well hidden. And keep in mind that you might need to bring water in case its a dry summer.

A garden can be a great place for growing Marijuana outdoors.

By putting Marijuana Plants into Pots, you can move them around.

Another great spot to grow can be a balcony or a terrace.

Germinate the seeds

A good time to put cannabis seeds into soil is at the beginning of spring. As a rule of thumb, I try to always germinate 2-times the amount of seeds than plants I want to grow. Some may not germinate and or some will be male plants. More on that later.

Germinated Baby Marijuana

To make sure all your cannabis seeds germinate properly, read “How to Germinate Marijuana Seeds“. A healthy start into life will result in a healthy plant.

Baby Marijuana plants are more likely to be eaten by snails and not very resistant against cold and humidity. They should be kept inside, e.g. on a Sunny Window board, for the first 3-4 weeks of their live. I have many people commenting that they put their young plants outside only to have them eaten by something (Horses, Snails, Kangaroos, Dropbears(!)). It happens easily. Plants should be relatively big before putting them outside.

When they have grown to a stable plant …

Put the Plants outside

Plants can be put outside 3-4 weeks after germination. Temperatures outside may not fall lower than 0 deg Celsius or 32 F. Or the plants will die.

Young Marijuana Plant in Pot outside

I find it a good idea to grow in Pots. You can than move the plants around. Either to hide them or to “follow the sun”.

Wherever you put it, in a pot or directly into the ground, make sure you use good quality soil.

Quality soil has a dark, almost black colour. It contains some fertilizers and perlite (little white pearls).

If there is quality soil in your garden already, good!

But if you are unsure, buy good potting mix. That will increase your results. To make it even better, mix some perlite (little clay pebbles) into it.

Marijuana likes light, fluffy soil with loads of ‘food’ in it. Do not apply pressure to the soil. The roots need oxygen to function properly. The perlite helps here.

When using plastic pots, you could drill plenty of little holes into them to let some air in. I very much recommend fabric pots. The bigger the pot, the bigger the plant. 7 gallons is a good size for outdoor plants.

Fill your pot with the same soil as you plant already used in its little “Baby pot”.

If you prefer growing Marijuana outdoors directly in the ground, make sure the area where you put it offers good soil.

It can be a good idea to dig a hole of ca. 60 cm (23 inch) diameter and depth. Than fill it up with quality flower soil and plant the weed into this soil.

Remove any other plants around that could interfere with your Marijuana or grow over it. Cannabis needs as much sun as possible.

Once you’ve done all that …

Let the Plants grow!

The plants now do pretty much all the work.

The more sun they’ll get, the faster they’ll grow.

Water the plants regularly. Do not overwater. Give only as much water as the plant can use and only when the soil has dried up. Touch the soil with the back of your fingers. If it feels cold, there is still water left in the soil.

After 3 – 4 weeks, you want to start using Nutrients. Up to this point, the plants were fed from the nutrition in its soil.

There are different Fertilizers available. Some are made especially for Marijuana.

These are the best to use because the composition is targeted at the needs of cannabis.

But if you want to save some money, Tomato Fertilizer works well, too. But make sure any fertilizer you use can be used for Food Plants.

Stick to the dosage recommendations written on the fertilizer container.

Do not use too much Fertilizer. It will harm or kill your Plant.

If you are like me, you probably watch at your marijuana plants every day.

If the leaves start becoming light-green or yellowish, give some more Fertilizer.

Remove the Males

At some point in time you want to remove the male marijuana plants. They do not deliver those tasty buds. They seem to have lower THC Levels generally.

If they are not removed, they will pollinate the females.

Once the females were pollinated, they put their energy into developing seeds.

The buds won’t grow that much anymore and the possible harvest decreases. Plus its a bit annoying to smoke seeds.

How to spot a male plant?

There is no way of telling before the plant starts budding.

The following is a picture of young male buds. They look a little like ‘balls’.

Male Marijuana

(above: Male Cannabis Bud)

Female Marijuana

(above: Female Buds have white ‘stigmas’)

If you spot a male pull it out and remove it. Its always a little bit sad.

Usually, there is a 50% Male – 50% Female gender ratio.

Once you got only females left, it will take 2 – 4 month until ….


Your plants will be ready for harvest at the age of 3 – 5 Month.

In the last weeks of a plants life, make sure to check the buds for mould. Especially if you grow in humid environments.

Mould looks gray, you can see it when bending the buds and looking into their inner.

You can tell that the plant is ready when it has nice, big buds.

It will not grow that fast anymore and most of the stigmas on the buds will have turned brown.

At his point, you can finally harvest the fruits of your work. Growing Marijuana outdoors can bring huge harvests.

Well and after you dried and manicured your Pot, it will look something like this:


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