Do we even have to state the importance of good Soil for gardening?

Now, this may prompt you to buy the most expensive fertilizer or nutrient mix, but that’s not what we want to imply. Even with the best fertilizer, the soil may not be capable of feeding adequate minerals to the roots. And the reasons can range from the wrong pH level, watering, low light exposure, or worst- all three of them!

That’s why having a soil testing kit becomes of utmost importance to check on the parameters from time to time. But there’s a small catch- which one is the best?

To answer that, we’ve reviewed the 13 best soil test kits of the year and brought all the necessary information at your disposal. One look at it, and we’re sure you’ll find the right product.

So, let’s dive in!

Top Soil Test Kits

1. Atree 3-in-1 Soil Meter

We start things off with the Atree 3-in-1 Soil Meter. This multi-purpose device utilizes a simple yet effective mechanism to give accurate readings. What’s more, its compact design makes storage and maintenance a breeze.

Why Did We Like It?

Unsurprisingly, the multi-purpose utility made us want to try the product. The two sensitive probes can quickly detect changes in the soil to take care of moisture and pH readings. Similarly, the plastic light sensor on the top tells you if the plants are receiving adequate light. And although the readout dial integrates all the scales, the black background and clear markings facilitate easy reading.

The testing process is a fairly simple job. After you set the device on the desired testing mode (moisture, light, or pH) via the flip switch, stick the probes into the soil to about 6 inches deep. Next, adjust its position till the pointer on the dial swings slightly, and note the reading after 10 minutes. Make sure to clean the probes of soil after each use.

What also takes the versatility factor a notch higher is that it can be used for both indoor and outdoor plants. Overall, the Atree 3-in-1 Soil Meter is a very cost-effective product that is suitable for beginners and experienced gardeners alike.

What Could’ve Been Better?

The probes are not meant for use in hard soil, which limits its utility to some extent. Also, the probes shouldn’t be kept in the soil for longer than 10 minutes, so keep an eye on the time. Other than that, we don’t have any complaints about this excellent unit.

2. Luster Leaf 1601 Rapitest Test Kit

The Luster Leaf 1601 Rapitest Test Kit isn’t far behind its predecessor, and as such, this makes it among the top recommendations on our list. Its quick testing method is perfect for soil analysis on the go, making you feel nothing short of a scientist at a lab!

Why Did We Like It?

For starters, we were impressed by the positive customer feedback. Apart from testing the pH, this kit can determine the levels of nitrogen, phosphorus, and potassium in the soil. For this, the package comes with 4 dedicated containers and 40 color-coordinated capsules. The patented color comparator system gets the job done in a few minutes.

Coming to the procedure, the first step involves taking a small amount of soil and diluting it with water. Then, pour it into the desired container and add the contents of the related capsule into it. 

Likewise, add the soil and water directly into the pH vial (up to the markings). Shake well, and leave for some time for the color to develop. The corresponding color chart will give you the results.

Not only that, but the kit also contains a complete guide for fertilization and the pH reference list for over 450 plants. Long story short, the periodic testing of soil will help you precisely understand the plants’ requirements at every stage of development.

What Could’ve Been Better?

It may be helpful to know that the results don’t give you an exact number but rather detects the level of alkalinity or nutrients. Also, emptying the small capsules can be a bit challenging, so we suggest twisting them apart carefully, directly over the vial opening.

3. Sonkir Soil pH Meter

Another one of our top recommendations is the Sonker Soil pH meter. Similar to the Atree 3-in-1 Soil Meter, this multi-utility unit comes in handy for both indoor and outdoor gardens. Plus, the flip switch is located conveniently for facilitating easy mode change.

Why Did We Like It?

At first glance, we were really impressed with its sturdy construction and decided to give it a go. Despite being made from a high-quality material with superior-grade manufacturing technology, the design doesn’t compromise compactness. So, that calls for brownie points!

Besides, each probe is equipped with a powerful sensor to carry out a specific test. While the copper probe is meant for moisture testing, the aluminum one measures the pH of the soil. This is a good way to ensure precise readings. And since the unit doesn’t employ batteries, the maintenance is pretty much about keeping the probes clean and safe.

Moreover, the toggle switch is located right below the dial to quickly select the testing mode. On that note, you need to keep the probes in the soil for at least 10 minutes, irrespective of the parameter being tested. 

What Could’ve Been Better?

The instructions mention that the indicator arrow in the display won’t move if the soil is dry, so you need to water it before testing. In hindsight, this may lead to inaccurate moisture reading as the soil will anyway be moist during the test.

4. Garden Tutor Soil pH Test Strips Kit

After the hattrick of multi-purpose soil testing devices, it’s now time to talk about a more dedicated product. The Garden Tutor Soil pH Test Strips Kit utilizes a super simple procedure that provides effective results.

Why Did We Like It?

When a testing kit is meant for a particular analysis, it only makes sense for the design to comply with the requirements, and this product does just that. Simply put, the test strips are specifically calibrated for soil pH testing. Each of the 100 strips has four pads that are indicative of the pH level.

As far as the testing procedure is concerned, it’s similar to that of the Luster Leaf 1601 Rapitest Test Kit, except there’s no capsule to add. Firstly, take about 8 level tablespoons (4 ounces) soil in a container and mix it with the same amount of water. Stir thoroughly for 30 seconds, if not more. 

As an optional step, allow the mixture to sit for 20 minutes, stir once more and dip the strip 10 seconds later. Upon taking it out, make sure to shake vigorously to remove any extra particles. 

This is also the time when the strip should change color. You can then match it to the label on the bottle or refer to the 16-page full-color pH testing handbook for better understanding.

What Could’ve Been Better?

We feel that the whole process can become slightly tedious, especially if you’re looking to save time. Furthermore, interpreting the colored strip can become a challenging job for first-time gardeners as flipping through the pages of the guide will again take considerable time.

5. Gouevn Soil Moisture Meter

The next entrant in the dedicated use category is the Gouevn Soil Moisture Meter. It boasts of a practical ‘plug and read’ mechanism that’ll appeal to both novice and expert gardeners. If you’re on a tight budget, then this unit is worth considering.

Why Did We Like It?

Honestly, we weren’t too convinced about its utility, given the rather ordinary design. But its accuracy got rid of our skepticism in no time. And one of the first things that grabbed our attention was the metallic probe sensor. Unlike a lot of other testing meters, the 7.7-inch long probe is especially suitable for larger potted plants.

Beyond that, its compact build means you can carry it everywhere, be it for indoor or outdoor soil testing. Gently poke the probe into the soil and as close to the plant base as possible. However, ensure that you don’t damage the roots. The indicator will start swinging, and users should note the reading when it becomes completely stable.

Last but not least, the battery-less operation cuts down on maintenance time and effort. Just clean the probe after every use for ‘resetting’ the device. But in case of any damage, the 18-month warranty will cover replacement services.

What Could’ve Been Better?

Although we don’t have any issues with accuracy, we feel that the probe could’ve been a little sturdier to get through compact soil particles. Hence, we’d suggest breaking up any soil cluster before using the meter.