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Using a Soil Moisture Sensor

A soil moisture meter is a small device that works by measuring the amount of water present in the soil. When placed in the soil, these sensors continuously monitor moisture levels and send data to the controller. Based on the results, the system can then decide whether to activate or delay watering. This can help conserve water and promote healthy plant growth by preventing overwatering. A soil moisture sensor for large irrigation systems can also save time and effort by automating one part of the watering process and providing data for better decision-making.

Soil Moisture Sensor FAQs

Where should I place a soil moisture sensor?

To get the most accurate readings from a soil moisture sensor, place it near the root zone of the plant, where most water uptake occurs. This is typically around 6-12 inches deep for small plants and 18-24 inches deep for larger plants or trees. If you're monitoring a larger area or multiple plants, place sensors in different spots to get an accurate representation of soil moisture across the whole space.

What is the ideal soil moisture level?

The ideal soil moisture level generally falls within the range of 20% to 60%. Soil moisture level is measured in terms of volumetric water content (VWC). For most garden and landscape plants, a moisture level around 25–50% is typically ideal. However, certain plants, like succulents, prefer much drier conditions, like 10–20%.

Are soil moisture meters worth it?

Yes! If you want to optimize plant health and water use, a ground moisture sensor is a great investment. They’re especially valuable in regions with irregular rainfall. These tools take the guesswork out of watering by providing accurate, real-time data on soil moisture levels. This is an easy way to prevent overwatering, which can lead to root rot, or underwatering, which stresses plants.