Microgreens Temperature: Finding the Optimal Growing Conditions

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Quick Answer:
Microgreens grow best at temperatures between 60-75°F, although some varieties may tolerate slightly cooler or warmer temperatures. If the temperature is too low, the microgreens may not germinate, and if it is too high, they may grow too quickly and become spindly. It’s essential to monitor the temperature and provide adequate ventilation to prevent the growth of mold or mildew.

Microgreens are a type of vegetable that have been gaining in popularity as a healthy and delicious addition to dishes. But do you know the ideal temperature for growing them? Temperature can have a big impact on the flavor, texture, and nutrient content of microgreens. So if you’re looking to get the most out of your crops, it’s important to understand how temperature affects these tiny greens! In this article we will explore what temperatures are best for growing microgreens and why.

We’ll start by talking about why temperature is so important when it comes to cultivating microgreens. We all know that plants need different amounts of sunlight and water, but did you know they also require specific temperatures? Most types of microgreens prefer cooler climates with daytime highs ranging between 60-75°F (15-24°C) and nighttime lows around 50-60°F (10-16°C). This range provides the optimal conditions for germination and growth.

Finally, let’s discuss how variations in temperature can affect the quality of your crop. Too much heat or cold can cause stunted growth or even kill off delicate seedlings before they reach maturity. It can also lead to reduced nutrient levels or change the taste or texture of some varieties of microgreens. Understanding how temperature plays into cultivation is key to getting great results every time!

Optimal Growing Conditions

When it comes to growing microgreens, the optimal conditions play a huge role in their success. Here are the key elements of creating an ideal environment for your greens:

  • Lighting requirements: Microgreens need 8-10 hours of direct sunlight or bright indirect light per day.
  • Soil composition: Use nutrient-rich soil that drains well and is free from pathogens.
  • Watering schedule: Keep the soil evenly moist but not soggy; water every 1-2 days.
  • Temperature range: Optimal temperatures range between 65°F (18°C) and 75°F (24°C).
  • Humidity levels: Maintain humidity levels at 50%-60% throughout germination and growth stages.
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In addition to these key elements, other factors such as air circulation, CO2 levels, time of year, and fertilizer can also affect microgreen growth. All these things should be considered when designing your setup for maximum results! With consistent attention to each element you will ensure your microgreens get off to a great start on their journey towards becoming healthy and vibrant plants. As we move forward, let’s take a look at how temperature plays into this equation.

Factors Affecting Temperature

Temperature is one of the most important environmental factors when growing microgreens. It influences their growth, taste and texture. Room temperature should be kept between 68-78°F (20-26°C). This helps to ensure that all plants in the same environment grow at a consistent rate, regardless of variety or species.

Soil temperature also plays an important role in microgreen cultivation, as it impacts germination success rates and overall plant health. The ideal soil temperature for germinating seeds ranges from 65°F–85°F (18°C–29°C), depending on the type of seed being planted. For example, some types of lettuce prefer cooler temperatures while other types thrive better in warmer conditions. Additionally, maintaining optimal air circulation within your indoor space can help maintain an even soil temperature range throughout the entire season.

When considering the best temperature for microgreens, you should consider both room temperature and soil temperature. Generally speaking, there is no single “perfect” temperature; instead different varieties may have slightly different requirements based on their specific needs. As such, understanding the unique requirements of each variety you are growing will help ensure that they get adequate light exposure and warmth to reach maximum growth potential without becoming too hot or cold for proper development. With this knowledge, you can then adjust your growing area accordingly so that it meets those individualized needs and provides your microgreens with an ideal environment for healthy growth!

Temperature Requirements For Different Varieties

When growing microgreens, the temperature is an important factor to consider. Different varieties of microgreens require different temperatures for optimal growth and yield. Knowing the right temperature requirements can help you ensure that your plants get just what they need in order to thrive!

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Most types of microgreens, such as lettuce, kale, arugula, mustard greens, and mizuna, grow best at a consistent temperature between 60°F and 70°F. When there is too much heat or cold outside of this range it can be difficult for these plants to effectively germinate and mature. Temperature control systems are available which allow growers to maintain ideal conditions for their specific crop needs.

It’s also important to remember that some variety-specifics may require slightly different temperatures than the general rule outlined above. For example, radish microgreens prefer cooler temperatures around 50°F while basil prefers warmer temps closer to 75°F. Keeping track of these details will help you provide your plants with the perfect environment for successful growth!

Humidity plays an equally vital role in creating favorable conditions for growing healthy microgreens.

The Role Of Humidity In Growing Microgreens

Humidity plays an important role in the growth of microgreens. A well-regulated humidity level is essential for successful cultivation, as it helps maintain a healthy growing environment and temperature control. Too much or too little moisture can lead to issues with water requirements, plant diseases, and lower yields.

To illustrate this point, let’s look at an example from our own greenhouse operation: We recently had some problems with mold due to high relative humidity levels. When we adjusted the air circulation system in our facility so that it was better ventilated, the problem was solved quickly and efficiently.

Microgreen Variety Temperature (°C) Humidity (%)
Kale 21 – 22 65 – 70
Amaranth 20 – 23 60 – 65
Radish 18–20 55–60

From this table and example, we can see how important it is to have proper humidity levels when cultivating microgreens. Without adequate ventilation or regulation of the environment’s relative humidity levels, there will be issues with growth rates, nutrient uptake, disease resistance and overall yield quality. So while temperature is a key factor in successfully growing microgreens, keeping up with optimal levels of humidity should not be overlooked either. With these two elements working together harmoniously in your growing space you will reap maximum benefits for your crop!

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Best Practices For Regulating Temperature

When growing microgreens, it’s important to understand the importance of temperature regulation. The ideal temperature for most varieties is between 55-77 degrees Fahrenheit. To ensure that your plants are receiving the precise temperatures they need, here are a few best practices you should follow:

  1. Monitor the room temperature daily and make any necessary adjustments accordingly.
  2. Install an automated thermostat to keep your space at the optimal range throughout the day and night.
  3. Invest in fans or other cooling devices if needed to help create airflow and regulate temperatures effectively.
  4. Place thermometers strategically around your grow space so you can easily check on them during routine inspections.

These simple steps will go a long way toward helping you maintain consistent temperatures within your microgreen operation, which will ultimately result in healthier yields and greater success with each harvest cycle!


Growing microgreens can be a fun and rewarding experience. When done properly, you’ll have delicious and nutritious greens in no time! The key to successful growing is understanding the ideal temperature for your particular variety. It’s important to keep an eye on both the ambient temperatures of your space as well as regulating humidity levels to make sure that your microgreens don’t get too hot or too cold.

I recently tried my hand at growing some pea shoots, which require cooler temperatures than many other varieties of microgreens. I found it worked best when I kept them in a cool spot out of direct sunlight, but also made sure they had plenty of airflow. By doing this, I was able to create a “microclimate” with just the right conditions for these delicate sprouts to thrive.

It may take some trial and error before you find what works best for your needs and preferences, but once you do there’s nothing more satisfying than harvesting a tray full of crisp and flavorful microgreens. So go ahead – give it a try!

Kathy Turner
Kathy Turnerhttps://mastermicrogreens.com/
Kathy Turner is the founder of MasterMicrogreens.com, a popular blog dedicated to helping people become master microgreen growers. Kathy is passionate about helping others learn how to grow the healthiest, most nutrient-rich microgreens. She believes that with the right knowledge and resources, anyone can become a successful microgreen grower. Learn more about Kathy by viewing her full Author Profile.

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