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Have trouble knowing how much to water your plant? Do you underwater or overwater? The Sustee Water Checker is here! It's as simple as sticking the Sustee Stick into your soil. After watering your plant the Sustee device absorbs moisture at the root level, just like your plant, then the level of absorbed water rises, the indicator gradually becomes blue.


It takes about 10 minutes to turn completely blue after watering. You will know it's time to water when the colour changes from blue to white. It's really that simple!


  • Sustee size S is best for small or shallow pots with plant roots about 5cm ( 2 inches) deep.
  • Sustee size M is best for pots 12-18cm (4.7 to 7 inches) in diameter
  • Sustee size L is best for pots more than 17.80cm (7 inches) in diameter


Made in Japan.


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