Humidity plays a major role in plant health when growing indoors. Too much humidity can lead to mold and disease, while humidity that is too low can slow plant growth.
Most growers adjust humidity levels depending on the stage of growth.
Ideal Humidity Levels
Seedling stage
65–75% humidity
Vegetative stage
50–70% humidity
Flowering stage
40–50% humidity
Lower humidity during flowering helps prevent mold and improves plant quality.
How to Control Grow Tent Humidity
Common tools used to control humidity include:
• Humidifiers
• Dehumidifiers
• Proper airflow
• Extraction fans
Monitoring humidity with a hygrometer ensures your grow tent stays within the ideal range.
Growers in Glasgow can find humidity control equipment and expert advice at Grow a Pear Hydroponics.
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