How to Grow Marijuana Outdoors (2021 Updated)

Many people are interested in cannabis cultivation but don’t know where to start. Growing weed outdoors is a great way to get started! Outdoor marijuana growing can be done anywhere by following these steps:

Benefits of growing weed outdoors

  1. Cost-effective
  2. Easy to find locations for growing cannabis outdoors in most parts of the world.
  3. More space and sunlight than indoors, which is great for outdoor marijuana plants that grow large!

How to set up your outdoor marijuana grow

Start by choosing the right place to grow your outdoor marijuana plants. It should be somewhere where they’ll have plenty of room, but also get at least six hours of direct sunlight each day.

The climate in your area

will dictate what type of plants you can grow. For example, if it is too cold outside for the marijuana plant to survive, then it’s best to grow them in a greenhouse or another indoor environment with lots of light and warmth!

Choosing the best outdoor cannabis grow site

If you know the climate in your area, you’ll need to think about some things before planting weed.


Weeds need full, direct sunlight for at least 6 hours a day. If you grow your weed in the backyard, make sure it is in a place where it gets full sun every day.

Your cannabis plants should get as much sunlight as possible. The best time is midday when the sun is not too bright. When the season changes, your plants will get less and less light during the day. This will trigger their flowering stage.


Plant some windbreak near your plants if you are in a hot area. This can make the plant grow better.

Privacy and security

Think about what is important to you. Some people want their garden to be private and hidden from others and some people want their plants to be hidden from thieves. You can do that by putting up fences or planting bushes or trees around the garden. There are also laws that say you have to make sure your plants are not visible from the street.

Types of outdoor grow spaces

Some growers plant in containers on balconies or rooftops that are shielded from view. They do this so that thieves and animals can’t see the plants. You should think about how big you want your final plant to be, because outdoor cannabis plants can grow to 10 feet tall or even more, depending on how much you let them go.

Garden plot: Some people will plant cannabis plants in their garden. They will do this with other types of plants, like vegetables.

Balcony: This can be a great spot if it gets good light—ideally, it faces south—and will usually get good wind. However, you may need to cover your balcony from peeping neighbors.

Roof: The sun can be great in this, but you might have wind.

Silt soils

Soil is the top layer of dirt that plants grow in. It has organic matter, clay, and rock particles. Cannabis plants grow best in soil with a lot of organic material in it. And they need good drainage.

Most outdoor weed growers will either grow their weed in a hole in the ground or with pots. This way they can better control the growing medium and nutrients for their plant.

If you want to plant directly into the ground, it is important to get your soil tested. If you do not do this, you will have problems with your plants. You can find a soil test nearby and it is easy and not expensive.

Soil has three basic consistencies, in various ratios:

  • Clay
  • Sand
  • Silt

Soil also varies in:

  • pH level
  • Water retention
  • Texture
  • Nutrient makeup
  • Drainage

Sandy soils

Sandy soil is easy to work. It drains well and gets warm quickly. But it doesn’t hold nutrients well. You need to make sure that you dig a hole for your plant and add things like compost, peat moss, or coco coir to help bind the soil together.

For sandy soil, mulch is a good idea. It will help with water retention and keep the roots cool.


  • Large granular size
  • Low pH


  • Good drainage
  • Prevents compaction
  • Easy to work with
  • High oxygen levels


  • Poor water retention
  • Dries out quickly
  • Nutrients get washed away

Clay soils

Heavy clay soils need to be amended before planting. A few weeks before you plant, dig holes and put in lots of compost, manure or worm castings. Then plants can grow better with good drainage and nutrients.


  • Small granular size
  • High pH


  • Provides minerals
  • Retains water
  • Stabilizes plants


  • Poor drainage
  • Heavy soil
  • Hard to work 

Loam soils

People plant plants in their native soil, which is usually one of three types. But cannabis plants do better when they are planted in soil that contains all three types. This mixture is called loam.

Identifying loamy soil is a simple task, all you need to do is feel it. Loam should be compacted by hand and will form very loosely packed clumps in your hand without cracking apart. You can also identify loam based on how much of the different particles it contains. The best soils for growing marijuana outdoors are those that have received constant humus from decayed plant materials like leaves and twigs.


  • Mixture of sand, silt, and clay
  • Near neutral pH


  • Drainage
  • Water retention
  • Naturally fertile
  • Easy to work
  • Nutrient retention
  • Supports microorganisms
  • High oxygen levels


  • Can be costly

The composition of potting soil is variable and can differ regionally. Beyond texture and color, the soil should smell rich and alive when it is used in gardening.

Buying the right soil for outdoor cannabis grow

If you are a first-time gardener, buy some potting soil for your plants. This soil will give them the nutrients they need to grow. It also has enough nutrients so that you don’t need to add any other fertilizers if used correctly.

You can make this on your own by combining worm castings, bat guano, and other ingredients with soil. You let it sit for a few weeks. It can also be bought from a local nursery or grow shop.

When you are shopping for soil at the garden store, you will have many options. The most basic thing about soil is what type it is. From there, look at nutrients like:

Microorganisms and other things that make the soil better.

  • Perlite
  • Worm castings
  • Bat guano
  • Biochar
  • Peat moss
  • Compost
  • Fish meal
  • Bone meal
  • Glacier rock dust
  • Plant food

Organic nutrients are things in soil that help plants grow. There are different types of organic nutrients. Some soils have a list of all the organic nutrients in them. Other soils offer the base nutrient, but you can add more if you want to fill in gaps.

Growing containers

You need to put your plants in containers if you don’t have good soil. You might not be able to dig holes and add soil. So you should use containers for growing outside instead.

If you don’t have enough space for a garden, you can put them in containers and put those containers on decks, patios, roofs- any place! You can move the container around during the day to take advantage of the sun or shield it from too much heat or wind.

Plants grown in small containers will be smaller than those that are planted in the ground. The size of the pot may determine how big the plant is, but you can still grow large plants if you use good techniques.

What size pot do I need?

There are different sizes of pots for plants. You can put small-to-medium plants in 5-gallon pots. Big plants need 10-gallon pots or bigger. Plants can get hot during the day, which is bad for them. That is why you will want to shade your pot when it’s sunny outside.

Fertilizers and nutrients for outdoor soil

Plants need a lot of nutrients. These are mainly nitrogen, phosphorus, and potassium. You will need to add more if your soil has a different composition than most soils.

When you plant weed outdoors, you need to add some kind of special powder to the soil. This is different from when you plant a weed indoors and don’t need this.

First, use a fertilizer that is inexpensive and can be found easily at a nursery. Some fertilizers release nutrients quickly and are used by the plant very quickly. Other fertilizers take weeks or months to release usable nutrients. When you mix these in with soil amendments, there will be enough nutrients for the whole lifetime of your plants.

We recommend these organic fertilizers:

  • Blood meal or fish meal for nitrogen
  • Bone meal or bat guano for phosphorus
  • Wood ash or kelp meal for potassium
  • Dolomite lime for calcium and magnesium
  • Epsom salts for magnesium and sulfur

There are also commercial soil blends that already have the right mix of ingredients.

You should avoid commercial fertilizers for first-time growers. Do not use a long-release fertilizer. Use these, but you need to know what they do and what your plants need.

We recommend that you do not use nutrients made for growing weeds indoors. They are made of chemical salts that can hurt the soil.

If you want to grow plants in your garden, it is important to make sure that the soil has the right nutrients. You can test your soil so you know what kind of fertilizer and how much you should put in. If you are not sure how much to use, start with a small amount and see if it works for your plants. You can always add more if they do not show enough growth.

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