Photo courtesy of Homegrown Cannabis Co.

Guides | 06.22.2023

Hot Or Cold? Finding The Sweet Spot For Optimal Cannabis Growth Temperature

Finding the balance to maximize cannabis yield through temperature control.

Growing medical or recreational cannabis requires a lot of control and precision. So temperature control is an important issue, whether you are growing indoors or outdoors.

Whether you are new or experienced in the world of cannabis cultivation, it is normal to ask yourself a question: What is the ideal temperature for optimal plant growth?

Growers have one goal and that is to produce the best cannabis, in all aspects. To grow large, high-quality buds, with the right concentration of cannabinoids and terpenes, all while avoiding mold, disease, and growth stagnation.

To achieve these goals, it is often necessary to consider different factors, for example, the seeds used in the cultivation. Our reliable choice is Homegrown Cannabis Co.

A brand that has an incredible range of cannabis seeds, from feminized, regular, autoflowering, and fast flowering, to high CBD and high THC seeds.

If you already have quality seeds, another factor to take into account is the temperature, but how do you know which one is ideal for your crop?

Warm & Cozy

Did you know that our beloved cannabis plants also like to take a nice sunbath? Yes, ladies and gentlemen, warm temperatures have their charms in the growing world.

During the vegetative stage, cannabis plants are most comfortable in a temperature range of 21 to 29°C. While during the flowering stage, the sweet spot is between 18 and 26°C.

As the plant absorbs the sun’s rays, its metabolic processes are awakened, allowing for vigorous growth and top-quality resin production. But don’t go to extremes, excessive heat can lead to stress and dehydration in our beloved plants. So, let’s find the perfect balance between a warm embrace and a refreshing breeze.

Cool As A Lettuce

Photo courtesy of Homegrown Cannabis Co.

Now, let’s change course and enter the world of cold temperatures. Who said cannabis doesn’t do well in the cold?

It turns out that some strains become more vibrant and full of life when offered a cool, relaxing environment.

Low temperatures can help improve flavor profiles, promote intense leaf colors, and increase trichome production. However, let’s remember that our green friends are sensitive, and extreme cold can slow their growth and affect their health. So, once again, we must find the optimal point for them to shine and thrive.

Sweet Harmony: Find the Middle Ground

Now that we’ve explored the extremes, it’s time to find the perfect balance in growing temperatures. Just as in life, sometimes it’s necessary to find a middle ground that meets the needs of our plants.

Cannabis likes comfortable temperatures. For most crops, the ideal temperature ranges from 18-26°C (65-80°F). Keeping the temperature within this range helps maximize plant growth and development and contributes to large, healthy buds.

There are many types of temperature controllers that growers can use to control their environment. The most common are heating, ventilation, and air conditioning systems, heat pumps, and heating pipes that carry hot or cold water.

Temperature control is one of the most basic aspects of growing in controlled environments. It is also affected by other parameters, such as lighting and humidity.

Maintaining a moderate temperature in the right range will allow for healthy growth and lush bud production. It’s all about finding the perfect harmony!

Solutions For Temperature Problems

Photo courtesy of Homegrown Cannabis Co.

Whether your plants are getting hot like the Sahara or freezing like Leo in Titanic, don’t worry, there are solutions to every problem!

Too Hot

  • Air Conditioner: A great way to cool the environment and maintain satisfactory temperatures.
  • Swamp Cooler: In addition to cooling the air, it increases the humidity in the room, perfect for hot, dry climates.
  • CFL bulbs: These lights don’t generate much heat, making them an ideal choice if you have limited space and need a discreet operation. Plus, you can place plants within inches of the lights without worrying about excessive heat.
  • Light Cycle: If it’s too hot during the day, a smart strategy is to schedule the light cycle during the hottest hours. For example, turn lights on for 12 hours during the night and off for 12 hours during the day, especially during the flowering stage.
  • CO2 enrichment: At higher temperatures, around 30-35°C, you can consider adding additional CO2 to the air to stimulate growth – this can increase yields by up to 20%! However, be aware that this technique is expensive and not recommended for beginners. To use it, you need to have complete control of the environment in the grow room.

Too Cold

  • Heaters: If the temperature is too cold, you can use a heater that emits warm air. However, make sure it does not blow directly on the plants.
  • MH/HPS lights: Instead of CFL lights, you can consider using MH (metal halide) or HPS (high-pressure sodium) lights that generate more heat. This will help maintain a proper temperature in the grow space.
  • Light Heat: If you want to increase the temperature, you can remove the cover of air-cooled lamps to allow them to generate more heat. However, you must be careful with the temperature increase, as it can rise up to 6°C.
  • Heating Blankets: Place heating blankets under the plants to provide additional heat to the roots. This option is best suited for smaller growing operations.
  • Insulation: Use insulation systems to keep heat inside the grow room and prevent cold from entering from outside.

Extra Tip

A key to successful crops is growing quality seeds from Homegrown Cannabis Co. Quality seeds are critical in cultivation because they guarantee consistent and reliable results. Sour Diesel autoflower and Critical Kush feminized seeds from Homegrown Cannabis Co. are examples of quality seeds that offer exceptional benefits.

Sour Diesel autoflower is an improved version of a legendary East Coast strain. It is an easy-to-grow hybrid with high THC levels. It has a robust, spicy, and earthy flavor that makes it an excellent choice for those looking for a little bit of everything. These autoflowering seeds grow on predominantly sativa weed, known as Sour D, and offer uplifting and potent effects. In addition, autoflowering seeds allow for multiple harvests in one season, making them an ideal choice for gardeners with limited space.

On the other hand, Critical Kush feminized seeds are also an excellent choice for growers of all levels. This strain is indica-dominant and offers a THC level between 19% and 25%. With a CBD of less than 2%, this strain eliminates negative energy and provides a relaxing and calming effect. Critical Kush feminized seeds produce buds with earthy and spicy aromas that stimulate the senses. With yields of 21 to 23 ounces per square meter, whether grown indoors or outdoors, these seeds guarantee abundant, high-quality harvests.

Growing quality seeds like Sour Diesel autoflower and Critical Kush feminized from Homegrown Cannabis Co. is essential for successful crops. These seeds guarantee predictable results and offer strains with desirable flavor profiles and effects. Whether you are a novice or an experienced grower, choosing quality seeds is the first step to a successful and rewarding grow.

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Conclusion

The key is to find the right combination of warmth and coolness, creating an environment in which they will flower and develop to their full potential. Keep in mind that this sweet spot can vary from strain to strain, so it is essential that you do your research on what you are growing before you jump in with a bang.

So, next time you are growing your precious plants, remember to look for that sweet spot, that perfect balance, and you will be rewarded with dreamy buds.

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