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GrowProbe Soil Moisture Tester

$23.50 NZD

This is the plant tool you had no idea you needed. No more guesswork when it comes to watering. No need to get one per plant either. Just one GrowProbe will take care of your entire indoor plant collection. GrowProbe reveals the secrets of what's going on below the surface in your soil. 

Your GrowProbe will tell you exactly how moist your plant is, right to the bottom of the pot (even for the big guys), so you can decide when to water without guessing. A fool-proof way to avoid over-watering. Much more affordable than getting one moisture meter per plant. No meter to read. No batteries or refills required.

How do you use a GrowProbe?

Easy peasy. Push it down into your pot as far as it goes (at almost 24cms long it's perfect even for your bigger pots). Give it a little twist to take the soil samples. Then pull it back out to check how moist the soil is, right to the bottom of your pot. 

How do you know when to water?

If all the soil samples in the notches are dry, it's time to water! If your plant prefers things on the moist side, like a Peace Lily, you might like to water when only the bottom one or two soil samples are moist and the other samples further up are dry. GrowProbe takes 4 soil samples at different heights in your pot so you can decide when it's time to water according to what your plant prefers.

Most aroids, hoyas and more prefer to dry out before you water again, so for those you can water only when down to the deepest soil sample is dry. 
Just give that last soil sample a wee squish between your fingers to see how moist or dry it is. Super simple.

Who is the GrowProbe for?

The perfect tool for anyone who's ever been unsure when to water. Especially handy for over-waterers and for new plant parents learning to read their plants and soil. No plant-mind-reading required! I love the longer size, making it perfect for medium to larger pots where you can't possibly stick your finger down deep enough to accurately check the moisture level. You don't even need to lift pots anymore to try to guess by weight how wet the soil is.

I've started using mine as my fertiliser stirring stick too. Bonus is it also aerates compacted soil down at the root level where it matters most. Plus no more dirt under your fingernails digging around in the soil!

How big is the GrowProbe?

For smaller pots you might prefer something like a Crew Soil Sensor, but for all your more established indoor plants in standard medium to larger pots, GrowProbe is your go-to. You can use it for smaller pots also of course, you just get fewer soil samples.

Just the probe (excluding the leaves handle), measures 23.5cms long. The 4 notches you can see at the end of the probe takes 4 soil samples from the bottom 10cms of the pot. The total height, including the leaf-shaped handle on top, is 29.5cms

The GrowProbe story

One of my favourite things about GrowProbe is you can support your plant's health while also supporting NZ made. GrowProbe founder Shayna lives in Wellington. After falling love with plants when living in London after many visits to the Kew Gardens, Shayna returned to NZ and became a horticultural technician. It was important to Shayna to help planty parents like herself with a product that didn't cost the earth, or hurt the earth. GrowProbe is made locally here in NZ from recycled materials.

GrowProbe quick FAQs 

  • Best used in pot sizes 12cms+
  • Best to push in near the edge of the pot to avoid the roots.
  • If used on a plant with pests or disease, sterilize between plants with rubbing alcohol to avoid spreading pathogens.
  • Best results when used on finer substrates that retain water (eg: not suitable for bark).
  • Feel the soil samples to determine moisture/dryness (best not to judge on the colour or look of the samples alone).

This is for the GrowProbe with or without packaging (depending on which option you choose). Plants, pots and other accessories shown in some photos not included. 

GrowProbe Reviews

"Super cool little tool which makes keeping track of all your leafy lovelies watering needs super easy. Design is sliiick, it’s really easy as to use and is made from recycled plastic so the planet is happy! Great gift for any houseplant enthusiast." Mitch

"This little green tool is my holy grail. I’ve only just started getting into house plants, and unfortunately on my journey I have lost a few souls to the dreaded over/ under watering. I'm so pleased to have my growprobe to help me along my journey! Move aside fake plants, mamas here to care for her babies." Grace


"Oh my goodness, what a great product! Thank-you. I've only just got it, but I can tell it's going to be a life changer. Bonus: it's made with recycled plastics right here in Aotearoa :)" Lea

"I have just tried out my new GrowProbe on my big Monstera. She's too big for a clear pot and too heavy even when dry to go by weight of the pot. The top of the soil always seems dry so the GrowProbe is perfect for a sneaky look down deep. Love it!" Jenni

Customer Reviews

Based on 6 reviews
Aimee Feck

The GrowProbe makes it really easy for me to know which plants are needing water as I have a tendency to overwater (or over love lol)

Cute + so useful

This cute little guy is so easy to use and has been so helpful in checking the moisture levels for my plants, especially those in bigger pots! Would definitely recommend :)

Rachel Hughes


Tara Mannix
the best tool to avoid overwatering!

I love being able to see how wet my plants soil is at different levels! Super helpful to know when to water next and prevent myself from overdoing it

Super Easy

Not only do I love the colour and design of this leaf, but it does a great job. Super easy to see if you need to water 😊

Shipping and Delivery FAQ's


 is FREE for all orders $90+. Orders under $90: Auckland Standard $5, signature required $7, or rural $9. Rest of the North Island and the South Island: Standard $7, signature required $9, or rural $11. Plants, fragile and overweight/oversize parcels have separate rates. 


Stock levels are live. Everything showing in stock online, is in stock right here, right now, in Auckland New Zealand, ready to ship. No drop shipping from other countries. No delays.



Orders ship every week-day, Monday to Friday. Orders placed before 7pm Monday to Thursday leave the next morning. Zoom zoom! Fri, Sat & Sun orders leave Monday (or the next working day).



Normal delivery is 1 to 3 working days. Rural and some regions can take a day or 2 longer, depending on where you're based (orders ship from Auckland). 

More about shipping and delivery > 



"I can’t recommend love that leaf highly enough. I’ve bought a couple of times so far and on both occasions Anna has been more helpful than I could possibly wish for. 5 stars! Don’t hesitate to order from Love That Leaf. Excellent service and super fast delivery." Rob Gordon

Why choose to buy from Love That Leaf?


When you buy from me you're supporting a small, local, family business. Love That Leaf is a registered NZ business, based in Auckland. 


You'll get your planty goodies super fast. Everything showing in stock on the website is right here in NZ, in stock, ready to ship. I ship daily, Monday to Friday. Orders normally leave the courier the same or next working day. Zoom zoom!


I stand by everything I sell and will always help put right anything that goes wrong. When you choose to buy from a registered NZ business (like me), you're also covered by the Consumer Guarantees Act, unlike overseas purchases or private sales, where you can end up stuck with no rights if anything arrives damaged or stops working.


I won't go AWOL on you. I'm here for support and advice anytime, even if you haven't bought from me yet. A lot of lovely people helped me along my plant journey, and I want to pay it forward. Please don't hesitate to ask for help. No obligation at all to purchase. 


"Super impressed with this business. Something that is lost nowadays, is customer service. This however is not the case with Anna from Love that Leaf. Very happy with my purchase, very happy with the product information provided and very happy with the quick shipping and great packaging. Thanks!" Melayna Anderson

FREE shipping for orders $90+
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Fast delivery 1 to 2 days for most of NZ
FREE Shipping For all orders $99+ shipping NZ wide
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100% NZ NZ owned. All in stock locally.
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