Signals when plants need water
The refill-free indicator changes colour after watering within minutes, depending on the medium’s water retention level, to show when the plant needs water.
Updated 3 months ago
Sustee
Sustee Aquameter and Watering Stake Set
Moisture indicator stakes often paired with watering spikes or globes to prevent overwatering. The refill-free indicator shows when the plant needs water.
$7.10
CategoryWatering Globes & Spikes
Compare Retailers
WalmartOut of Stock
$16.50Last updated: 6/5/2026
BuyProduct Highlights
The most important capabilities and tradeoffs at a glance.
Compatible with many potted plants
Suitable for houseplants, succulents, bonsai, cacti, and other indoor or outdoor potted plants across a range of soil and growing media.
Simple soil-insertion placement
Insert the stake near the plant base, with the bottom opening covered by soil and the top opening above the soil line.
The Sustee Aquameter and Watering Stake Set is a refill-free moisture indicator for potted plants, designed for soil insertion indoors or outdoors and available in S, M, and L sizes.
Media Reviews
Independent perspectives and scores from published reviews.
Myrtle & Mist
Sustee Aquameter Review | Myrtle & Mist
The reviewer highlights that the Sustee Aquameter offers a unique, passive, and permanent moisture indicator that is ideal for glancing at plant collections. While it lacks the graduated 1-10 numerical scale of probe-style meters, it excels as a no-action-required, glanceable tool that avoids the need to repeatedly disturb root systems. It is noted that the cotton core is a consumable item that requires periodic replacement.
Myrtle
AboutDarwin.com4.6/10
Best Moisture Meters for Houseplants: 8 Expert-Tested Picks
Recognized as the best overall moisture meter for continuous monitoring, the Sustee Aquameter is praised for its intuitive color-based indicator, Japanese design, and battery-free operation. The reviewer notes that its ability to stay in the soil 24/7 provides reliable feedback, though it is limited to a single function and may not be suitable for large pots.
David Leff
Garden.com
Moisture meters for houseplants: best options for 2026 - Garden
The review identifies the Sustee as an excellent tool for single specimen plants due to its always-on functionality and lack of user error. It is noted that while the device is effective, it has ongoing consumable costs for core replacements, is limited to a single fixed depth, and may be unreliable in very coarse bark mixes or LECA.
Plant Care Club
5 Best Moisture Meters for Plants (2026 Review)
Labeled as the best design among moisture meters, the Sustee is highlighted for its elegant, minimalist appearance and simple color-coded system. The review notes its convenience for staying in the soil permanently, but points out that it is more expensive per plant than some alternatives and does not provide a granular numerical reading.
Video Analysis
Product walkthroughs, comparisons, and long-form video reviews.
3:00
How To Use Soil Moisture Meter To Avoid Over & Under Watering - Houseplant Care Tips
You can find the soil moisture meter chart for common houseplants here ...
144,159 views · 3 years ago
My City Plants · youtube
2:13
Sustee Water Meter - How to use them
Sustee water
12,108 views · 5 years ago
Groovy Plants Ranch · youtube
15:47
Planty Holiday Gift Guide // Planty Product Review!
Here are the planty products that I am loving and recommending in my 2019 Maria's Favorite Things Planty Holiday Gift Guide!
1,922 views · 6 years ago
Growing Joy with Maria · youtube
9:58
How to Set Up Your Garden Tower
Vertical gardening in my Garden Tower Project 2 saves me so much space in my backyard homesteading garden! Let me show ...
110 views · 4 years ago
Michelle Tech · youtube
Attributes
Detailed specifications and product characteristics.
AdjustabilityNo
Decorative Stylemodern, minimalist
DimensionsSize S: H120mm, W10mm, D8mm; Size M: H180mm, W10mm, D8mm; Size L: H255mm, W10mm, D8mm
Indoor Outdoor Useboth
Installation MethodSoil insertion/stick into the pot near the plant base; place within ~20 cm radius, keep bottom opening fully covered with soil and top opening above soil; insert to depth between arrow markers
MaterialPolycarbonate body; inner core made from non-woven cotton/biodegradable fabric
Plant CompatibilityAny potted plant, houseplants, succulents, bonsai, cacti, indoor/outdoor potted plants, various soil/medium types (e.g., akadama, black earth, bark, coco peat, peat moss, potting soil, vermiculite; also artificial media like hydroculture)
Price(USD)7.1 USD
Water Release RateSlow (passive moisture uptake indicator; colour changes after watering within minutes depending on water retention level)
Purchase Options
All current listings across the base product and its variants.
WalmartOut of Stock
$16.50Last updated: 6/5/2026
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