How to Grow Marijuana Outdoors: A Beginner’s Guide

Although it is possible to purchase high-quality weed from a local dispensary, there are few things more thrilling than outdoor cannabis growing.

Having the ability to choose the right marijuana strain, the ideal location, and the right soil is one thing. Possessing the patience to see the entire project through is quite another.

If you are lucky enough to live in a state where an outdoor grow is permitted and want to grow your own bud, this guide on how to grow marijuana outside will help you every step of the way.

Growing Marijuana Outdoors: The Beginner’s Guide

Just to be clear, growing your own cannabis is a time-consuming process, but is also an extremely rewarding one. This is a guide for a first-time grower who wants to grow quality cannabis without breaking the bank. If this is your first outdoor grow and you miss a single step, you won’t be happy with the outcome.

It is also an outdoor growing guide designed for small-scale cultivation. It is crucial that you check your state’s laws before proceeding. For example, weed is legal for recreational use in Colorado, and you can grow marijuana plants as long as you’re aged 21 or over.

However, all marijuana growing areas must be enclosed, locked, and they can’t be viewed from the outside. In other words, it is tricky to grow cannabis outside and meet all state laws.

Incidentally, Colorado residential properties are allowed to grow a maximum of 12 plants, while medicinal marijuana growers are permitted up to 24.

We are offering this guide with the assumption that it is legal to grow marijuana plants in your state. First and foremost, it is imperative that you have the right climate for optimum growth.

Step #1: Determine the Climate in Which You’re Going to Grow the Marijuana

how to grow marijuana outside

Climate is all-important when growing cannabis, with the primary concern being the amount of available sunlight. While this isn’t a problem in sun-kissed California, not every American state has the same luxury. However, don’t assume that glorious sunny weather is perfect for growing flowers.

When growing cannabis outdoors, you have to realize that, while weed is reasonably adaptable to different weather conditions, it is still vulnerable to temperature extremes.

For example, sustained temperatures of over 86 degrees Fahrenheit can prevent growth, while temperatures below 55 degrees could kill your precious plants.

There’s no doubt that growing marijuana outdoors comes with challenges (which we address later on), but it also has a list of cool benefits:

  • Eco-Friendly: Indoor growing eats up a lot of electricity because it requires so much lighting; not to mention ventilation systems and other equipment. In the state of California, it is estimated that growing weed indoors uses the equivalent of 200 pounds of coal to grow just a single pound. Outdoor growing needs sun, air, water, and minimal equipment to survive.
  • Better Quality Buds: Marijuana that is grown outdoors carries a distinctive flavor and aroma. As long as you choose the right strain, you’ll enjoy every single smoke.
  • Low Cost: Assuming that you have chosen the right location, outdoor growing offers unlimited sun, fresh air, carbon dioxide, and rainwater. Buy the best seeds, take good care of them, and when they sprout, they’ll need minimal maintenance. Once you learn how to handle pests and inclement weather, you’ll be surprised how easy it is to grow weed outdoors.
  • Larger Yields: It is common for outdoor marijuana plants to grow nearly 6 ft tall, and such plants offer 500 grams of dried bud. A harvest from just six plants is usually enough to provide you with a year’s supply of premium cannabis.
  • Legality: As long as you don’t grow in your back garden, it is harder to trace the ownership of outdoor weed. You have the power of deniability if questioned, but hopefully, you are not breaking the law in the first place!

Step #2: Choose the Best Possible Location

how to grow weed outside

As you know, outdoor cannabis plants love basking in the sun, so find a plot that offers at least five hours of sunshine a day. Once again, residents of certain towns and cities will find it easier than most. For example, those who live in San Diego will experience 14 hours of sunlight on the day of the Summer Solstice (June 21).

As we mentioned above, make sure the temperature of your location does not exceed 86 degrees. If your area regularly surpasses this temperature, look for a plot that gets direct sunlight early in the day and filtered sun later in the afternoon. It is also ideal if you can find a place that offers a constant breeze. However, bear in mind that this increases water consumption.

Areas that are subject to high wind will need a wall or hedge to act as a windbreak. Then there is the small matter of privacy and security.

Even if it is legal to grow outdoors in your location, there will always be judgmental individuals and possible thieves. Try and plant your marijuana so that it is hidden behind tall fences or shrubs.

It may also be worth investing in wire cages to keep crooks and animals at bay. While we said that plants often grow over 6 ft tall, there are instances where your marijuana plants could resemble mini-skyscrapers at over 12 ft high, so make sure you plan correctly. Here are some examples of potential grow sites:

  • Balcony: This allows easy access but is also highly visible. Frosted plastic film can conceal your plants and reduce the spread of the scent. As the U.S. is in the northern hemisphere, it is best if your balcony faces south, as it will ensure your plants get the most sunlight during the day.
  • Personal Garden: Again, your plants are highly visible but easily accessible. If you have the right security measures in place, this is the best location.
  • Roof Terrace: Guarantees the maximum amount of sun but strong winds and odors are an issue.
  • A Forest: Streams provide an excellent source of water, or else you can dig a couple of feet into the earth to find groundwater. It is well hidden, but just about anyone could stumble upon your stash. As the soil is also likely to be acidic, it is a good idea to use huge pots filled with premium-quality soil.
  • An Open Field: You will need to camouflage it with other plants that are capable of growing as tall as weed. Look for land where nettles grow because it is a sign that the soil is filled with nitrogen, an essential nutrient for healthy marijuana growth.

It isn’t easy to find the best location. Not only must it offer ideal growing conditions, but it must also be safe from discovery, even when planting legally. If you are adhering to the law, private property is best because you have full access and can control security. Otherwise, you have to risk public property, which increases the chances of discovery.

Here is a quick list of things a great growing location needs:

  • Sunlight: More sunlight equals bigger plants and larger yields.
  • Water: Marijuana plants thrive in most areas as long as they get enough water.
  • Wind: A gentle breeze is perfect because it helps develop robust root systems. Heavy winds can damage or destroy a crop.
  • Soil: We explore soil choice below, but suffice to say, it has to be rich in the right kind of nutrients.
  • Access: While you don’t need to spend as much time tending to outdoor plants as their indoor counterparts, you still have to visit your crop every couple of weeks. This helps you identify if they lack nutrients, need more water, or are infested with pests.
  • Security: If your crop is easy for the general public to access, don’t be surprised if someone comes in and helps themselves. While we urge you NOT to break the law, if you are growing weed in secret, getting caught will lead to a massive fine and possibly jail time.

Step #3: Buy the Best Soil for Your Plants

how to grow marijuana outdoors

We are assuming that you intend to grow your cannabis plants from seed. In this case, you should germinate indoors during the early spring. In a warmer climate, seeds can start to sprout by early April. If you live in cold weather, this process probably won’t happen until May.

Typically, seeds only begin to germinate when exposed to constant temperatures of 65 degrees Fahrenheit. Experts suggest keeping your plants indoors for up to four weeks before bringing them outside when the weather is more suitable.

When choosing the right soil, bear in mind that it is made up primarily of clay, sand, and silt. Your plants require slightly acidic soil with organic matter that has been adequately drained. As a result, you have to research the soil in the ground if you intend on planting your cannabis directly in the earth.

Let’s check out soil types according to their most prevalent component:

  • Clay-Rich Soil: This is heavy, doesn’t hold oxygen particularly well, and drains very slowly. Around four weeks before you start planting, dig the holes for the marijuana and add significant amounts of manure, compost, and any other decomposed organic matter that you can think of. This process improves drainage, offers aeration, and ensures your marijuana plants receive adequate nutrients.
  • Sand-Rich Soil: This is a good option because it drains well and warms quickly. On the downside, it doesn’t hold nutrients very well, and this can be problematic in wetter climates. Dig holes for the plants and add peat moss and compost to bind the soil together. If you live in a warm environment, mulch the soil to prevent the roots from overheating. This process also helps the soil retain water better.
  • Silt-Rich Soil: This is the best soil for growing marijuana plants because it warms rapidly, has excellent drainage, holds moisture and is easy to work. You will find the best silty soil at the bottom of lakes or in prehistoric riverbeds.

If you decide to use the soil in the earth, make sure you have it pH tested. Otherwise, purchase the soil from a garden store. Please remember that even store-bought soil could use added nutrients from compost.

Step #4: Add Some Fertilizer to the Plants

growing marijuana outdoors

For outdoor growers, it is best if you skip commercial fertilizers and focus on organic fertilizers. You should add it to the soil before planting and throughout the growth cycle. Natural options include:

  • Compost
  • Kelp Meal
  • Blood meal
  • Fish meal
  • Worm castings

When you add any of the above to the soil before planting, you won’t have to add as much fertilizer during the growing cycle. After planting your marijuana in premium quality soil, you don’t need to add anything else for a few weeks. It is tempting to make your soil amendments with store-bought fertilizers but remember; they are filled with chemicals. This can significantly impact the flavor and aroma of the finished product.

If you elect to purchase soil from a store, don’t assume that it has a balanced pH level, nor does it mean it will maintain this standard for the duration of the season. Ideally, your soil’s pH will be 7.0, but it is possible for it to change over the course of a couple of months and become too alkaline or acidic.

It is a fact that some store-bought soils are too acidic at the beginning. This means you have to use organic fertilizers after a couple of weeks because the plants are lacking crucial nutrients.

Composting is the way forward because it is cheap and relatively simple. You can also add all sorts of organic matter from fruit clippings to animal manure. Avoid using meat or animal fat as it will attract pests.

Make sure you layer the compost heap and ensure it has proper airflow. Turn the heap every few weeks and test the pH regularly to ensure it is balanced. These days, consumers are turning to super-soil to help fertilize their plants; this is organic pre-fertilized soil which contains all the nutrients your marijuana needs.

Step #5: The Importance of Properly Watering Your Cannabis Plants

growing cannabis outdoors

Obviously, your plants need water, and the benefit of growing outdoors is that your marijuana should be exposed to rainwater. However, in places like California, the hot summer months mean minimal rainfall, so you have to water your plants manually. The main danger is overwatering your cannabis. A good starting point is to assume that a large plant needs 10 gallons of water a day during hot weather.

If you live in a dry and hot climate, it is a good idea to dig beneath your plants and add rocks or clay-rich soil beneath the planting holes as a means of slowing drainage. Some growers believe that adding polymer crystals to the soil helps improve water retention as these crystals absorb water.

Those who live in wetter than average climates need to improve drainage. Marijuana that grows in waterlogged conditions is susceptible to root diseases.

Here are three ways to boost drainage:

  1. Plant your weed in beds or raised mounds.
  2. Dig ditches to ensure that the water flows away from your plants.
  3. Add clay pebbles, perlite, and gravel to the soil.

If you use tap water, test it first as it could have a significant number of dissolved minerals which build up in the soil and impact the pH level. Alternatively, tap water could contain an excessive amount of chlorine which is very bad for the soil. As a result, we recommend filtering the water you use.

Should you decide to use a container garden instead of planting your marijuana straight into the soil, bear in mind that they dry out much faster. Therefore, you may have to water your plants daily. Additional watering is also necessary for warm or windy conditions. To avoid overwatering, add lots of water and wait for the top inch of the soil to be dry before adding more. Invest in a soil moisture meter to make things easier.

Step #6: Select Carefully the Type of Container You Need

Select Carefully the Type of Container You Need


If these are your first cannabis plants, you may not realize that the surrounding soil is unsuitable for growth until you try and use it. If this is the case, you have no choice but to use container gardens. When using natural soil, you have to dig holes and amend the soil regularly. For people with debilitating medical conditions, performing this level of manual labor will prove difficult.

One of the main advantages of container gardens is that you can place them anywhere. As a result, you can grow your weed on a patio or even on a rooftop. Just make sure you move the plants around to make the most out of the available sunlight. Another bonus is the fact you can use store-bought nutrient-rich soil which simplifies the fertilization process.

It is important to note that growing the weed in containers will impact the size of the plant. Container-grown marijuana will be smaller because root growth is restricted. In other words, the size of the container determines the size of the plant.

You will have to learn specialized techniques if you wish to grow a few large plants.

Don’t use a container that is smaller than five gallons and, if you want large plants, try 15+ gallon containers if you can find them. In some locations, there are 100-gallon container bags! If you live in a warm climate, be wary of excessive heat damaging the roots of the plants. It is normal for container-grown pots of soil to exceed 90 degrees on a hot day. Always water the plants generously in the morning to ensure they don’t go thirsty on sweltering afternoons.

Airflow is also critical, so be sure to invest in breathable containers. These enable air to penetrate the root zone quickly and ensure that oxygen gets to the roots. Once marijuana plants breathe in the CO2, the roots use the most with the highest consumption occurring at night.

Step #7: Protect your Cannabis Plants from Pets and Inclement Weather

Outdoor cannabis growers face a significant disadvantage compared to their indoor growing counterparts; they are unable to control the weather, and their plants are susceptible to attack from pests and pets. Rapid changes in the weather can damage or even kill cannabis plants, while animals and aphids are a constant threat.

Protecting Your Marijuana Plant from Pets & Pests

Don’t make the mistake of focusing solely on bothersome insects; larger animals such as rodents, dogs, cats, rabbits, deer, and raccoons can trample or attempt to eat your crop.

While insects damage your plants over a few days or weeks, larger animals can destroy them in a matter of minutes. It should go without saying that you must examine your cannabis plants daily, but you also have to add in some protection.

You should be able to deal with substantial animal threats by surrounding your plants with a high and sturdy wire fence. If you are concerned about birds, you also have to place netting over the plants.

Threats like moles, who push up from the soil beneath your plants, require extra planning. An excellent way to prevent them from causing much damage is by building a fence around 2-3 feet beneath the soil. It is also possible to use household items such as garlic and castor oil, or even urine from predators such as coyotes, to ward off rabbits, gophers and raccoons.

Keeping your cannabis garden safe from pests is a full-time job, unfortunately.

First of all, it is imperative that you keep your marijuana healthy because blooming plants have a natural resistance to specific pests. You can add ladybugs and lacewings, as these predators keep harmful pests at bay while doing no damage themselves.

Pyrethrum is one of the most popular organic insecticide options, and there are homemade remedies such as combining soap with water and misting your plants with it. Garlic is a useful tool for fighting beetles. Check your plants daily for signs of infestation and act immediately if you see any issues. The aforementioned soap and water solution is effective against a mild outbreak.

Another method of fighting pests is through the addition of companion plants. These are plants of a different species to cannabis that you plant near your crop. Companion plants are specially chosen for their ability to repel pests. They include clover, rosemary, basil, and marigold.

Protecting Your Weed from Rain & Wind

High winds are a major problem for cannabis growers as they break branches, damage trichomes and leave your weed vulnerable to disease and infestation. Any type of excess strain like this can over-stress the plants, causing the buds to produce seeds. You do not want this to happen.

If your crop is in a windy spot, create a windbreak such as a wall, although tying perforated plastic sheeting to garden stakes is also useful.

Although rainwater helps your plants grow, too much of it results in mold and mildew; the problem is at its worst during the flowering stage.

If you live in a wet climate, chose a mold-resistant marijuana strain and support it with stakes or cages. Otherwise, the rain will collect on buds and leaves, and your plants will be weighed down. Alternatively, try and predict wet spells and be prepared by adding a makeshift shelter to your crop.

Protecting Your Precious Crop from High Temperatures

It is best if you keep your crop exposed to a temperature between 55 and 86 degrees Fahrenheit for as much of the growing cycle as possible. Marijuana plants can survive outside this range for short periods, but once the temperature goes below 42 degrees F, most varieties of cannabis will be damaged quickly. If excessively cold temperatures are a problem, use protection such as cold frames, hot caps or cloches.

Step #8: Choose the Right Genetics

outdoor cannabis grows

It is essential to pay attention to your climate because it will dictate the kind of marijuana strain you’re able to grow. If you live in an area with a history of cannabis growing, try and find out details about the kinds of strains that have previously been developed. There is also a good possibility that there are strains grown explicitly for that climate.

Picking the Right Marijuana Strains for Your Climate

Whether you like it or not, certain strains don’t grow well in specific climates, so no matter how much care and attention you give your crop, its yield will always be disappointing.

It is important to remember that cannabis plants start flowering as the days get shorter. This is why growing marijuana in northern latitudes is a problem.

Your cannabis will flower, but the trouble is that the process happens too late to get the most from the sun in the late summer.

If you live in southern California, you can grow these strains and not worry about late flowering due to the abundance of sun. If you try and grow them in British Colombia on the other hand, they won’t produce a decent yield because they won’t finish flowering until December. By that time, the lack of light, cold weather, and heavy rainfall will probably have killed the plant.

Cannabis Seeds vs. Clones – Choosing the Best Seeds on the Market

The best genes equals the best weed. When you select marijuana with good genetics, you are rewarded with a bud that smells and tastes gorgeous and is also extremely potent. Indoor growers tend to grow their marijuana from clones, while outdoor growers prefer to grow from seed. You can get quality bud using either method, and they both have their advantages and drawbacks.

If you elect to clone, you need a mother plant which requires at least 16 hours of light a day to ensure it doesn’t flower. It is also possible to buy clones from your local dispensary.

All clones are female plants that have the same traits, and they are known for producing premium quality weed. You must root the clones indoors before they are ‘hardened off’ (the process of moving a plant outdoors for a few hours a day to gradually introduce them to air, cold nights, and sunlight.)

The main downside to using clones is that they produce small yields. If you want a more abundant harvest, you have to grow the clones indoors during the winter and early spring. Also, cloned marijuana plants never develop the thick central root that goes into the ground, stabilizes the plant and consumes groundwater (also known as the taproot). As a result, they are vulnerable to drought and windy conditions.

Plants grown from seed offer larger yields and are tougher in the face of inclement weather conditions. You can plant these seeds in the garden in the spring, even if it is still cold and wet outside. Another option is to begin the growing process indoors, but they have to be hardened off eventually before they are transplanted.

The chief downside to growing from seed is that the outcome is less predictable than it is with clones. If you don’t choose an inbred seed line, you could end up with a different plant to what you might have been expecting. Also, cannabis seeds produce males and females, which means you have to sex your plants when they achieve sexual maturity, a process that involves culling the male plants. You can avoid this issue by purchasing feminized seeds.

One other option for outdoor growing is auto-flowering seeds. As soon as they reach maturity, these plants begin to bloom irrespective of the length of the days. If you live in a temperate climate, you will benefit from two crops every year by using auto-flowering seeds. Simply plant one crop in late winter (or even early spring), and another at the beginning of summer.

Step #9: Cut Your Cannabis Plants Carefully

how to grow cannabis outdoors

Before cannabis harvesting takes place, you have to decide whether you want to use training tools such as screens and ties to ensure the plants grow in a specific shape. You need to prune your plants if you’re concerned about height control; an essential element of low-key growing!

Make sure you trim your plants regularly to help them attain optimum growth. Get rid of unnecessary cannabis cuttings because leaving dead leaves and branches will only attract pests. Pruning also enables you to shape your plant. If you see new shoots that are not growing properly, take a pair of pruning scissors and trim them away to help your plants develop bigger buds.

Typically, your outdoor marijuana plants will begin to transition into the flowering period after the Summer Solstice because the days get longer. The type of strain you’re growing dictates the duration of flowering. For example, most sativa strains will go through the full growth and flowering cycle in a little over three months.

Lastly, make sure female plants are not exposed to males. Otherwise, pollination could occur – a process which decreases the quality of the harvest. If your strain begins flowering during a wet season, excess moisture exposure could prove troublesome. In this instance, find shelter for the plants to prevent mold and mildew growth.

Step #10: Grow, Enjoy, Repeat!

growing mary jane outside

Although it depends on the strain and climate conditions, most cannabis strains are ready for harvest between the end of September and the first week or two of October. Monitor pistil and trichome formation to gain a better idea of when your plants are ready for harvesting.

The growing process can take anywhere from two months to 8+ months, and your plants are ready to be harvested when almost all its pistils turn from white to a reddish-brown color. The plant’s trichomes should also turn white at this stage, although some growers like to wait until they have achieved an amber coloration.

You must be careful not to wait too long to harvest because marijuana plants suffer a decline in health once they have completed the flowering phase.

If the pistils are turning red, harvest immediately! Other signs that it is time to harvest include brown resin on the buds, a broader stem, and if the leaves of the plant begin to turn yellow and die back.

It is impossible to provide a ‘precise’ time to harvest. However, most experts believe that you should harvest an indica strain after eight weeks after flowering. Sativas usually require harvesting ten weeks after flowering. Strains that come from auto-flowering seeds should take ten weeks to grow from seedling to bud.

When harvesting outdoor flowers, make sure you have the requisite tools. When it’s time, bring sealable bags, although we recommend carrying a holdall if you use Ziploc bags for added security. Cut the marijuana plants into lengths that make them easy to transport. In other words, make sure they fit in your bags! Don’t spend too much time at the growth site in case there are prying eyes.

Congratulations! You have successfully grown a healthy and hearty batch of marijuana. We would love to tell you that it’s time to light up and celebrate, but there are a few more key things you have to do first. Most pertinently, curing and drying.

Once you have a succesful harvest under your belt, move onto the next stage with our article on Drying and Curing Cannabis Buds.

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