Collection list

From moth orchids to hydrangea, from roses to herbs and even succulents.It is easy to use for all kinds of plants and soils.

※ It can be used with potting soil, barkdust, peat moss and hydroponics.


Insert Sustee in between ▼▲


It will change color from white to blue within 20 to 30 minutes after watering.


Blue ⇒ enough water in soil.
White ⇒ in need of watering.

Incorrect watering is reported to be the cause of plant wilting 80 percent of the time.

They wilter because they are not thoroughly watered.
However, too much water leads to root rot more often than you would think.
Japanese farmers say that "it takes three years to learn watering plants properly",
this goes to show, that even professionals struggle.

The first moisture checker with pF indicator for your home.

For the first time ever, a home-grade moisture checker has been equipped
with a pF indicator (available water capacity).
This way the root's ability to absorb water - or
the plant's "thirst" becomes visible (patented in Japan, No. 5692826).
The high quality of SUSTEE prevents root rot caused by improper watering.
To better our product we keep testing and researching in cooperation with
the Tokyo University of Agriculture and farmers.

Available in S, M and L to fit different pot sizes.Suitable for any plant and soil type.

"I don't want to make any watering mistakes that kill my plants."SUSTEE was born out of this common desire.
Core refills for replacement are also available.

This product has won numerous international design awards

SUSTEE has been developed by the product designer Tetsutaro Nakabayashi.
Its simple but well visible shape goes well with plants and furniture.