The 7 Best Soil Thermometers on The Market in 2021

Soil thermometers are essential instruments for ensuring your soil is in perfect condition for the growing season. Given that different plants and crops grow best at different temperatures, knowing the heat of your soil is essential for the best results.

soil thermometers

This applies to everyone, whether you’re a fully-fledged farmer or just an amateur gardener. Luckily, there are a range of different soil thermometers on the market providing varying levels of technicality, precision and designs to fit every need.

So, if you need to keep track of your local earth temperature, keep reading for our picks of the Best Soil Thermometers available in 2021. 

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Top Picks At A Glance:

Haven’t got time for the full article? Check out our top picks from some key soil thermometer categories!

Best Overall Soil Thermometer – Stainless Steel Soil Thermometer by Smart Choice

If you’re looking for the best all-round, traditional soil thermometer then we’d recommend the Stainless Steel Soil Thermometer by Smart Choice. It does the job perfectly with a durable stainless steel construction, 5” stem and large display. 

That display is super easy to read thanks to the large dial indicators as well as an optimal temperature marking. It also measure all the way up to 220℉ so will be perfect for temperatures both hot and cold. 

Smart Choice also offers a customer satisfaction guarantee, ensuring that if you’re unhappy they will refund or send a replacement within 24 hours. Couple this with a bargain price of $20 and you have the best all-round, no nonsense soil thermometer on the market! 

Pros:

  • Large display
  • Durable construction
  • Fair price

Cons:

  • Short stem
  • No digital features

Best Digital Soil Thermometer – Luster Leaf 1625 Digital Soil Thermometer

If you’re looking for a thermometer that’s a little more high tech, the Luster Leaf 1625 Digital Soil Thermometer is definitely one we’d recommend taking a look at.

This handheld thermometer is also super-portable – able to be taken across your farm or garden with ease and taking accurate measurements on the move! With its specialised soil sensor probe and easy-to-read digital display, the Luster Leaf 1625 is a great alternative to the classic soil thermometer for those who want something a little more technical. 

Both Luster Leaf and parent company Rapitest are leaders in the gardening world, so you can be assured this termometer is highly accurate and fit for any of your growing needs. You might also think this digital thermometer will come at a premium, but at just $15 it’s an absolute bargain! 

Pros

  • Digital display
  • Small and portable
  • Bargain price

Cons:

  • Only measures in ℉
  • Short sensor probe

Best for composting – Compost Soil Thermometer by Greenco

For many gardeners, the success of plant grown depends on having high quality, great condition compost. To achieve this, it’s important to keep your compost at the optimal temperature and the Compost Soil Thermometer by Greenco is perfect for those keeping track of compost temperature. 

A durable 5mm thick stem is accompanied by a large, easy to read meter covering all the way across the 40 – 180 Fahrenheit range. That meter has a specialist compost optimisation scale, easily displaying the perfect temperatures needed for the best compost! Alongside this, the thermometer also comes with a special get started guide for composting, making it by far and away the best soil thermometer in this category!

Pros

  • Durable construction
  • Easy to read dial
  • Specialised for composting

Cons:

  • Slightly more expensive than competitors
  • Only measures in ℉

Best value for money – Taylor Precision Products Soil Testing Thermometer

In truth, many of the soil thermometes in this article are fairly similar and will do a great job of helping you keep track of your local earth. So, if the driving decision for you is price, we’d recommend the Taylor Precision Products Soil Testing Thermometer.

At around $10, this termometer is a great option for those on a budget. But don’t be fooled, it still does everything you need, with a durable 4″ stem and an accurate dial that tracks all the way from -20 to +180 Degrees ℉.

Pros:

  • Cheap price
  • Large dial

Cons:

  • Short stem
  • Basic design

Best Soil Thermometer for Design – Cootway Compost Thermometer

If you’re looking for a soil thermometer that doesn’t stick to the mould and instead provides an eye catching design alongside core functionality, it’s time to check out the Cootway Compost Thermometer.

Alongside a 20″ long stem and sturdy stainless steel construction, this soil thermometer has a really nice green earth design which also incorporates a compost temperature dial for easy reading. It might not be much, but for those that treasure a nice, artistic design, this thermometer could be for you!

Pros:

  • Large, easy to read dial
  • Great design
  • Compost temperature guide

Cons:

  • No digital features

Best for durability – REOTEMP Backyard Compost Thermometer

If you live or work in an area that’s often hit by extreme weather getting a soil thermometer that’s solid and reliable is a must. Luckily the REOTEMP Backyard Compost Thermometer is our pick if you’re looking for durability!

With a thick 1/4″ steel stem, hermetically sealed dial, and reinforced steel construction, this soil thermometer will keep you tacking accurate readings no matter the forecast. It also tracks across 0-200℉ and comes in at less than $20, making it a great all-rounder too!

Pros:

  • Durable design
  • Large, easy to ready dial

Cons:

  • Basic design
  • No digital features

Best Technology – WANFEI Plant Monitor

If you’re growing plants inside and want something that’s really high tech, it’s time to get your hands on WANFEI Plant Monitor.

It’s perfect for ensuring your indoor plants are at optimal condition by tracking not only temperature, but also local light, humidity and nutrient statistics. Ths monitor links directly to both Android or iOS smpartphone apps, providing real time information right in your hand.

As you can imagine, it’s a little more expensive than the other soil termometers we’ve seen in this article, but it’s a great alternative to end on if you’re looking for something high-tech for indoor plant growing.

Pros:

  • Digital features
  • Track additional light, humidity and soil nutrient metrics

Cons:

  • Only for indoor use
  • Expensive

And that’s it for our roundup of the best soil thermometers on the market. Luckily, if you’re needing to keep track of your soil conditions, there are lots of options available with specialist digital, handheld and composting models meaning you can get a thermometer that’s perfect for your needs!

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