Choosing the Best Outdoor Grow Location for Your Cannabis Plants

Aspiring gardeners often find themselves stumped when trying to choose the perfect location for growing outdoor plants. With so many different factors to consider, it can be overwhelming to choose the right spot. One of the most critical factors to take into account when growing plants outdoors is the temperature and humidity of the grow location. High or low temperatures, inadequate sunlight, or poor air circulation can all have a negative impact on plant growth and yield. In this article, we will discuss the essential factors to consider when selecting the ideal outdoor grow location to maintain an appropriate temperature and humidity for your plants. We will also explore different tools and strategies that you can use to monitor and regulate the temperature and humidity of your grow site.

Factors to Consider When Choosing an Outdoor Grow Location


Factors To Consider When Choosing An Outdoor Grow Location
When deciding where to set up your outdoor grow operation, there are several important factors that need to be taken into consideration. The success of your plants depends on finding the perfect location that offers the ideal climate, sun exposure, air circulation, soil quality, and proximity to water. Each of these factors plays a significant role in the overall health and yield of your plants. Let’s explore each of these factors in detail to ensure that you choose the right outdoor grow location for your specific needs.

1. Climate

When choosing an outdoor grow location, climate is one of the most important factors to consider. Different strains of plants have different temperature and humidity requirements, so it’s important to choose a location with a climate that is suitable for your specific strain.

Here are some climate-related factors to consider:

  • Temperature: Marijuana plants generally prefer temperatures between 60 and 80 degrees Fahrenheit. However, some strains can handle temperatures up to 90 degrees Fahrenheit, while others need temperatures as low as 50 degrees Fahrenheit. Research the temperature requirements for your specific strain to find a suitable location.
  • Humidity: Humidity levels should generally range between 40% and 60%. Too much humidity can lead to mold and fungus growth, while too little humidity can cause dehydration and nutrient deficiencies in the plants.
  • Precipitation: It’s important to consider the amount of rainfall in your area. If you live in a dry area, you may need to irrigate your plants regularly. If you live in a very wet area, you may need to find a location with good drainage to prevent waterlogging.
  • Wind: Strong winds can cause damage to your plants, so it’s important to find a location that is somewhat sheltered from wind. However, some level of air circulation is still necessary to prevent mold growth.

By carefully considering these climate-related factors, you can choose a suitable outdoor grow location for your marijuana plants.

2. Sun Exposure

One of the most important factors to consider when choosing an outdoor grow location is sun exposure. Cannabis plants require a minimum of six hours of direct sunlight each day to grow and thrive. However, too much direct sunlight can also be harmful, as it can cause the plants to dry out and become dehydrated. When selecting a location for your outdoor grow, it is crucial to ensure that your plants will receive the right amount of sun exposure.

To ensure optimal sun exposure, consider the following factors:

Factor Description
Orientation The orientation of your grow site in relation to the sun can have a significant impact on sun exposure. Aim for a location that faces south or southwest. This will give your plants maximum exposure to the sun throughout the day.
Obstructions Take a walk around your grow site and observe any obstructions that may block the sun’s rays. Buildings, trees, and other structures can all cast shadows that may deprive your plants of sunlight. Make sure to choose a location that is free from obstructions and has open access to sunlight.
Altitude Higher altitude areas may receive more intense sunlight, but be cautious, as it can also lead to harsher temperatures and humidity levels. Consider choosing a location with an ideal altitude balance for your plants.

By considering these factors, you can choose a location that will provide your plants with the right amount of sun exposure for optimal growth and health.

3. Air Circulation

Proper air circulation is another important factor to consider when choosing an outdoor grow location. Plants require a steady supply of fresh air to thrive and grow properly. Here are some factors to consider when evaluating air circulation:

  • Wind Patterns: Evaluate the wind patterns in the area where you plan to grow your plants. If the area is mostly still or stagnant, there may not be enough fresh air circulating around your plants. However, if the area is too windy, it may damage or stress the plants.
  • Obstructions: Look for any obstructions such as buildings, walls, or fences that may block air flow. Plants grown in areas with obstructed air flow may be more susceptible to pests and diseases.
  • Spacing: Proper plant spacing can also help to promote adequate air flow. If plants are overcrowded, it can hinder air circulation and create a humid environment that can promote the growth of mold and other pathogens.
  • Fans: One effective way to improve air circulation is to use fans. Fans create a gentle breeze that helps to strengthen plant stems and promote healthy growth. They also help to minimize stagnant air pockets that can harbor pests and diseases.

By assessing these factors, you can determine if an outdoor grow location is suitable based on air circulation. If necessary, you can make adjustments such as using fans or adjusting plant spacing to maintain good air flow around your plants.

4. Soil Quality

The quality of the soil is an essential factor to consider when choosing an outdoor grow location. The right soil can provide essential nutrients to the plants, help them grow well, and cope with the changing environment. Here are some factors you should consider when assessing the soil quality:

  • Soil Type: Different soil types have different drainage and water retention capabilities, so it is essential to choose soil that is right for the specific plant. For example, plants that require well-draining soil would benefit from sandy or loamy soils, while plants that need moisture would require soil with more clay and organic matter.
  • pH Levels: Soil pH determines the plant’s ability to absorb nutrients. A pH level of 6-7 is optimal for most plants. Before planting, you should test the soil pH and ensure that it is within the ideal range. You can adjust the pH level by adding soil amendments or lime.
  • Nutrient Content: The soil’s nutrient content is one of the critical factors that affect the plant’s growth. You can enhance the soil’s nutrient content by adding organic matter, such as compost or manure, to the soil. Plants require various nutrients such as nitrogen, phosphorus and potassium. Soil test labs can determine nutrient content and suggest adjustments.
  • Drainage: Adequate drainage is necessary for the plant’s growth, preventing waterlogged soil and root rot. You need to ensure that the water doesn’t stand for too long in the soil by choosing a location with proper drainage.
  • Contamination: Before planting, check the soil quality for any contaminants that can affect the plant’s health. Avoid planting in areas exposed to chemicals or heavy metals that can harm the plant and be detrimental to human health.

Ensure that you assess the soil quality before planting and make the necessary adjustments to ensure your plants receive the nutrients they need for optimal growth.

5. Proximity to Water

Access to water is essential for the growth and development of outdoor plants. When choosing a location for outdoor growing, it’s important to consider the proximity to water sources. Here are some things you should keep in mind:

1. Availability of natural water sources: If you can find a location close to a river, stream, or lake, it can be an excellent source of water for your plants. These sources provide fresh water that often contains essential nutrients for the plants.

2. Accessibility to water: Even if there is a natural water source nearby, it’s important to consider how accessible it is. You don’t want to choose a location that requires you to carry water long distances. Make sure it’s easy to get water to your plants to prevent undue stress and reduce the risk of dehydration.

3. Rainfall patterns: The amount of rainfall your chosen location receives will impact the availability of water. If you choose a location that experiences long periods of drought, you’ll need to provide irrigation. Consider the average rainfall for the area and plan accordingly.

4. Quality of water: Water quality is also an important factor to consider. If you plan to use tap water or well water, make sure to test it for pH levels and dissolved solids. High levels of dissolved solids can burn plants and cause nutrient imbalances. Using a water filtration system may be necessary to ensure the best quality water for your plants.

5. Drainage: Finally, you’ll want to choose a location with good drainage. If water pools around the roots of your plants, it can lead to root rot and other problems. Look for a location with well-draining soil and consider adding drainage systems if necessary.

Considering the proximity to water is an essential aspect of choosing a location for outdoor growing. Keep these factors in mind to ensure that your plants have access to the right amount and quality of water they need to thrive.

Tools to Monitor Temperature and Humidity

Tools To Monitor Temperature And Humidity
Maintaining the right temperature and humidity levels can make all the difference in your outdoor grow operation. But how do you know if your plants are in the optimal environment? This is where monitoring tools come in handy. By using thermometers, hygrometers, and temperature and humidity monitors, you can track the conditions of your outdoor grow location and make adjustments as necessary. Let’s take a closer look at each of these tools and how they can help you achieve a successful harvest.

1. Thermometer

A thermometer is a crucial tool for any outdoor grower to accurately measure the temperature in their grow location. This device measures the temperature and displays the result on its screen. It is important to use a thermometer that is designed for outdoor use and can withstand various weather conditions.

Types of Thermometers

There are different types of thermometers available that are suitable for outdoor growing. Some of the most common types are:

Type of Thermometer Description
Mercury Thermometer A glass tube containing mercury that expands or contracts according to temperature changes
Digital Thermometer A device that uses a sensor to measure temperature and displays the result on its screen
Infrared Thermometer A non-contact device that measures temperature by detecting the radiation emitted by an object or surface

It is important to choose a thermometer that is appropriate for your needs and budget. Digital thermometers are more convenient and easier to read than mercury thermometers, but they can be more expensive. Infrared thermometers are also a good option as they allow you to measure the temperature of an object or surface without touching it.

Placement of the Thermometer

To get an accurate reading of the temperature in your grow location, it is important to place the thermometer in the right spot. The thermometer should be placed at plant level, as temperature variations can occur at different heights. It should also be placed in a shaded area to avoid direct sunlight that can affect the temperature reading.

Frequency of Temperature Monitoring

Temperature monitoring should be done regularly to ensure that the plants are growing in the optimal environment. The frequency of monitoring depends on the climate and the stage of plant growth. During the warmer months, temperature should be monitored daily, while during colder months it can be checked every few days.

By using a thermometer to monitor the temperature in your outdoor grow location, you can ensure that your plants are growing in the ideal conditions necessary for healthy and successful growth.

2. Hygrometer

A hygrometer is a device that is used to measure the humidity or moisture content in the air. It is an essential tool for outdoor growers since maintaining the right humidity levels is crucial for the growth and health of plants. Here are some things you should know about hygrometers:

1. Types of Hygrometers: There are two main types of hygrometers: analog and digital. Analog hygrometers use a hair or fiber element to measure humidity levels, while digital hygrometers use electrical sensors. Digital hygrometers are generally more accurate and easier to read, while analog hygrometers have a more classic design and are less expensive.

2. Placement of Hygrometer: It is important to place the hygrometer in a location that accurately reflects the humidity level of the grow area. Avoid placing it in direct sunlight or close to a source of heat. Also, make sure to place it at the same level as the plants, as humidity levels can vary greatly depending on the height.

3. Ideal Humidity Levels: The ideal humidity level for cannabis plants during the vegetative stage is between 50-70%, while during the flowering stage, it should be between 40-50%. Too much humidity can lead to issues such as mold and mildew, while too little humidity can cause plants to dry out and become stressed.

4. Calibration: Hygrometers can become less accurate over time, so it is important to calibrate them periodically. This can be done by placing the hygrometer in a sealed container with a wet sponge for a few hours to see if it reads 100% humidity. If it does not, you can adjust the calibration using a screw or dial on certain models of hygrometers.

5. Maintenance: To keep your hygrometer working properly, make sure to keep it clean and free from dust and debris. You can clean it with a soft cloth or brush and a mild cleaning solution if necessary.

A hygrometer is a valuable tool that can help outdoor growers maintain the ideal humidity levels for their plants. By selecting the right type of hygrometer, placing it correctly, calibrating it periodically, and keeping it clean, you can ensure that your plants are healthy and happy.

3. Temperature and Humidity Monitors

To ensure that your outdoor grow location is maintaining the ideal temperature and humidity for your plants, it is important to use temperature and humidity monitors. These monitors can give you real-time data on the environmental conditions that your plants are experiencing, allowing you to adjust your cultivation practices as needed.

There are several types of temperature and humidity monitors available on the market, and each has its own unique features and advantages. Here is a table comparing some of the most popular options:

Monitor Type Features Advantages
Thermometer and Hygrometer Combo Measures temperature and humidity in one device Simple and affordable
Digital Thermometer and Hygrometer Displays real-time temperature and humidity readings Easy to read and accurate
Wireless Temperature and Humidity Monitor Receives data from remote sensors and displays it on a central monitor Allows you to monitor multiple locations at once
Data Logger Automatically records temperature and humidity readings over time Great for tracking trends and analyzing data
Smartphone App Allows you to monitor temperature and humidity from your phone Convenient and portable

No matter which type of temperature and humidity monitor you choose, make sure to regularly check and record the data. This will help you identify any patterns or changes that may affect your plants’ growth and allow you to make any necessary adjustments to maintain the ideal environmental conditions.

Strategies to Maintain Ideal Temperature and Humidity

Now that you understand the important factors to consider when choosing an outdoor grow location based on climate, sun exposure, air circulation, soil quality, and proximity to water, it’s time to focus on maintaining the ideal temperature and humidity for your plants. This can be a challenging task, but with the right tools and strategies, you can ensure your plants are thriving in their environment. Let’s explore some tips and tricks to maintain the perfect temperature and humidity conditions for your grow site.

1. Select the Right Location

When it comes to selecting the right location for growing marijuana plants outdoors, there are several crucial factors to consider. Here are some steps to help you select the ideal location:

1. Determine the Sun Exposure

Marijuana plants need plenty of sunlight to grow and thrive. It is crucial to choose an area that receives at least six hours of direct sunlight a day. Observe the location throughout the day to determine the areas that experience direct sunlight and shade.

2. Assess the Climate

Climate plays a vital role in the successful growth of marijuana plants. It is crucial to assess the climate in the selected location. Ensure that the location provides an appropriate temperature range for marijuana plants. Ideally, the temperature should range from 60°F to 80°F during the day and 50°F to 70°F at night. The location should also receive adequate rainfall or access to irrigation systems.

3. Check for Air Circulation

Good air circulation is essential for the health of marijuana plants. Proper circulation helps prevent the buildup of excess humidity around the plants, which can attract pests and cause fungal growth. Ensure that the selected location provides a continuous flow of air from different directions.

4. Assess the Soil Quality

The soil in which marijuana plants grow is a crucial factor in their growth and development. It is essential to perform a soil analysis to determine the soil quality. Factors to consider include pH balance, nutrient content, and soil structure. Ensure that the soil is rich in nutrients and has adequate drainage.

5. Ensure Proximity to Water

Marijuana plants need water to thrive. It is imperative to choose a location that is in proximity to a water source. In case of an irrigation system, ensure that the location has convenient access to the system.

By considering these factors, you can select the ideal location for growing marijuana plants outdoors.

2. Use Shade Cloth or Other Coverings

In order to maintain ideal temperature and humidity levels for your outdoor grow, it’s important to take measures that can help protect your plants from the sun’s intense rays. One such measure is utilizing shade cloth or other coverings. These materials can help to reduce the amount of direct sunlight that your plants receive, without completely blocking out all light.

Shade cloth is a popular option for outdoor growers as it allows for a certain amount of light to still reach the plants while also serving as a protective barrier. The cloth can be hung up above the plants or used to cover a structure such as a greenhouse or hoop house. Shade cloth typically comes in different percentages of shade, such as 30%, 50%, and 70%, which refers to the percentage of light that is blocked. Choosing the right percentage shade cloth will depend on your specific location and the needs of your plants.

Other coverings that can be used to protect plants from excessive sun exposure include tarpaulins, plastic sheeting, or netting. These materials can be draped over plants or stretched across a structure to provide shade. Tarps and plastic sheeting are generally more durable than shade cloth, but may not allow for as much air circulation. Netting can be a good option for creating shade while still allowing for air flow, but may not provide as much protection from extreme temperatures.

When using shade cloth or other coverings, it’s important to regularly monitor the temperature and humidity levels to ensure that the plants are not being subjected to heat stress. If necessary, make adjustments to the covering to allow for more air flow or moisture control. As with any growing technique, it’s important to find the right balance for your specific location and plants.

3. Water Your Plants Appropriately

Watering your plants appropriately is crucial for maintaining ideal temperature and humidity levels for successful outdoor growing.

Tip Description
1. Check the Soil Before watering, check the soil moisture level. Stick your finger into the soil about an inch deep to feel for moisture. If the soil is dry, water your plants. If it’s moist, wait a day or two before watering again. Overwatering can lead to root rot and under watering can cause stress to the plants.
2. Watering Time Water your plants early in the morning or late in the afternoon to ensure the water has time to be absorbed before the heat of the day. This will reduce evaporation and help maintain optimal moisture levels. Watering during the heat of the day can lead to water wastage and scorching of the leaves, preventing the plant from absorbing enough moisture.
3. Use the Right Amount of Water It is important to provide enough water to your plants without going overboard. Ensure that the soil is evenly moist, but not completely saturated. The amount of water required will vary depending on the species of the plant, the size of the container, and the weather conditions. A good rule of thumb is to use enough water to thoroughly wet the soil to the root depth, and then allow the top inch of soil to dry before re-watering.
4. Water Directly to the Root Zone When watering your plants, water directly to the root zone, rather than spraying or sprinkling the water onto the leaves. This will prevent the leaves from burning due to the sun’s rays magnifying the water droplets. Watering directly to the root zone will also ensure that the water is absorbed where it is needed most.
5. Consider Drip Irrigation Drip irrigation is a great way to ensure that your plants are getting the water they need without over saturating the soil or wasting water. It delivers moisture straight to the root zone, reducing the risk of water evaporation and ensuring that the plants get the right amount of water they need. Drip irrigation also encourages deep root growth and prevents waterlogging issues that can arise with heavy or frequent watering.

By following these tips, you can ensure that your plants receive the appropriate amount of water to maintain optimal temperature and humidity levels for successful outdoor growing.

4. Use Fans to Increase Air Circulation

Optimizing the air circulation around your plants is crucial, and one of the best ways to do that is by using fans. Fans help move air around your grow location which can help regulate temperature and humidity levels. Consider placing fans in either a diagonal or circular pattern around your plants to ensure air is moving in all directions. Here are some things to consider when utilizing fans to increase air circulation:

  • Size: Depending on the size of your outdoor grow location, you may need multiple fans to effectively circulate air. However, make sure not to use fans that are too large or too powerful, as they can damage your plants.
  • Frequency: Consider how often you need to run your fans, based on the temperature and humidity levels in your grow location. Running fans too much can dry out your plants if the humidity is too low, or make them too cold if the temperature is too high.
  • Placement: Do not place fans too close to your plants, as the wind generated can damage them. Position fans so that they are not pointing directly at your plants, but instead are creating a gentle, circulating breeze in the grow location.
  • Cleaning: Make sure to clean your fans regularly to prevent dust build-up, which can reduce their efficiency in circulating air.

Taking the time to properly position and maintain fans in your outdoor grow location can have a big impact on the health and growth of your plants. Make sure to consider all factors when utilizing fans as part of your overall strategy for maintaining ideal temperature and humidity levels.

5. Adjust Plant Density

One way to control the temperature and humidity in your outdoor grow location is to adjust the plant density. This refers to the number of plants you have in a given area.

Having too many plants in one area can lead to high humidity, as the plants release moisture into the air through a process called transpiration. It can also lead to high temperatures, as the plants compete for resources and create a microclimate.

On the other hand, having too few plants in one area can also be problematic, as the surrounding soil and air can become too dry.

Finding the right balance is key. A general rule of thumb is to have roughly one square meter of growing space for every plant. However, this can vary based on the size of the plant, the climate, and other factors.

Here’s a table to help you determine the ideal plant density based on the size of your plants:

Plant Size Ideal Plant Density
Small (e.g. herbs) 6-8 plants per square meter
Medium (e.g. tomatoes) 3-4 plants per square meter
Large (e.g. pumpkins) 1-2 plants per square meter

Keep in mind that these are just guidelines, and you may need to adjust the plant density based on your specific growing conditions. Monitor the temperature and humidity regularly and make adjustments as needed.

6. Consider Greenhouse Cultivation

Greenhouse cultivation can be a great option for those who want to have more control over the temperature and humidity of their outdoor grow. With a greenhouse, you can create a controlled environment where your plants can thrive.


Advantages Description
Temperature Control You can use heaters or fans to control the temperature in the greenhouse, allowing you to keep the temperature in the ideal range for your plants.
Humidity Control You can use a humidifier in the greenhouse to maintain the ideal level of humidity for your plants. This is especially important during the flowering stage.
Pest Control A greenhouse can help protect your plants from pests like insects and animals. You can also control the environment to discourage pests from entering.
No Weather-related Issues A greenhouse protects your plants from harsh weather conditions like heavy rain, hail, or strong winds, which can damage or even kill your plants.


However, there are also some disadvantages to greenhouse cultivation. One of the biggest concerns is the cost, as greenhouses can be expensive to build, maintain and heat. Additionally, pests and diseases can still be an issue in a greenhouse, and it can be challenging to maintain proper air circulation.

Another thing to keep in mind is that greenhouses can be regulated, and some may require permits and meet regulations in your area. Before investing in a greenhouse, it’s important to research local regulations, obtain any necessary permits and ensure that you have suitable electrical and plumbing systems to operate it.

Greenhouse cultivation can be an excellent choice for those who are willing to make the investment and maintain a controlled environment for their plants. It allows you to control the temperature, humidity, pest and disease levels, and provides protection from harsh weather conditions.


In conclusion, choosing the right outdoor grow location for ideal temperature and humidity is crucial for the success of any gardening project, especially for cannabis cultivation. Several factors such as climate, sun exposure, air circulation, soil quality, and proximity to water should be considered when choosing an ideal spot for growing cannabis.

Moreover, monitoring the temperature and humidity levels is necessary to ensure that the plants receive the appropriate environmental conditions. Using tools such as thermometers, hygrometers, and temperature and humidity monitors can help growers maintain and adjust the temperature and humidity levels as needed.

Implementing strategies such as selecting the right location, using shade cloth or other coverings, watering the plants appropriately, using fans to increase air circulation, adjusting plant density, and considering greenhouse cultivation can also help maintain the ideal temperature and humidity levels for cannabis cultivation. These strategies are essential for ensuring that the plants thrive and produce high-quality yields.

Finally, it is essential to remember that cannabis cultivation requires expertise and attention to detail. Choosing the right outdoor grow location is just one aspect of a successful growing project. By following the steps outlined in this article, growers can ensure that their plants receive the ideal temperature and humidity conditions necessary for optimal growth and maximum yields.

Frequently Asked Questions

1. What is the ideal temperature range for outdoor cannabis cultivation?

Outdoor cannabis plants thrive in temperatures ranging from 65°F to 85°F during the day and 55°F to 75°F at night.

2. What is the ideal humidity range for outdoor cannabis cultivation?

Humidity levels for outdoor cannabis cultivation should be between 40% and 60%. Higher humidity levels can cause mold and mildew, while lower humidity levels can cause stress to the plants.

3. How do I know if my outdoor grow location has enough sun exposure?

Check your outdoor grow location throughout the day for direct sunlight. Ideally, your plants should get at least 6 hours of direct sunlight per day.

4. What can I do to increase air circulation in my outdoor grow location?

Use fans to increase air circulation in your outdoor grow location. You can also strategically place your plants to allow for natural air flow.

5. How often should I water my outdoor cannabis plants?

Water your outdoor cannabis plants when the top 2-3 inches of soil feel dry to the touch. Avoid over-watering, as this can lead to root rot.

6. What is a shade cloth and how does it help maintain temperature and humidity?

A shade cloth is a piece of mesh-like fabric that is hung over your plants to provide shade and regulate temperature and humidity. It can also protect your plants from harsh sunlight.

7. Can I grow cannabis outdoors in colder climates?

Yes, you can grow cannabis outdoors in colder climates. However, you may need to start your plants indoors and transplant them outside once the weather warms up.

8. Are there any natural ways to lower humidity in an outdoor grow location?

Yes, you can lower humidity in your outdoor grow location by using natural desiccants like charcoal or silica gel.

9. How can I check the pH level of my soil?

You can check the pH level of your soil using a pH testing kit, which can be purchased at most gardening stores.

10. Can I grow cannabis outdoors all year round?

It depends on your climate. In some warmer regions, you may be able to grow cannabis outdoors year-round. However, in colder regions, you may need to grow your plants indoors during the winter months.


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