Take the guesswork out of watering your plants!

What Is a Moisture Meter?

A moisture meter is a small hygrometer that measures how much moisture is present in soil.

A soil moisture meter against a white background surrounded by loose soil and plants.

The Spruce / Cori Sears

Why Use a Moisture Meter?

Plus, a moisture meter reads more than just the top few inches of soil.

The reading given is accurate for up to a foot below the surface.

The Irtov 4-in-1 digital moisture meter, a soil moisture meter we recommend, on a colorful background

The Spruce / Cori Sears

How Do Moisture Meters Work?

Some moisture meters can even read the light conditions around a plant as well as thesoil pH.

These meters are called three-way meters.

A hand is pushing a blue moisture down into the soil of a snake plant potted in a terracotta pot.

The Spruce / Cori Sears

If you meet resistance, remove the probe and try another spot.

You dont want to force it as the probe is sensitive.

Wait 30 to 60 Seconds

Moisture meters normally give a reading within 30 to 60 seconds.

A blue moisture meter in the soil of a snake plant that is in a terracotta pot. There is a white cabinet next to the plant and white walls.

The Spruce / Cori Sears

Read the Results

Once the results are ready, moisture meters are easy to read.

The scales are often color-coded to provide additional clarity.

How to Interpret the Results

Youve measured the moisture of your soil using a moisture meternow what?

A moisture meter with snake plant foliage in the background.

The Spruce / Cori Sears

Next, it’s time to interpret the results and decide whether its time to water your plant.

for figure this out, you will need to be familiar with the needs of your unique plant.

For example, a result on the dry end of the scale will mean different things for different plants.

However, for plants likepothosandphilodendron, a dry reading means its time for water.

Store your moisture meter in a dry location between uses.

Remove the probe and retry in a different location.

University of California Cooperative Extension.

“Portable Soil Moisture Meters.

“Ceventura.ucanr.edu.