{"product_id":"sustee-soil-moisture-indicator","title":"SUSTEE Japanese Soil Moisture Indicator | Watering Checker","description":"\u003ch2\u003eA colour cue for everyday watering\u003c\/h2\u003e\n\u003cp\u003eWondering whether to water today? Let the soil give you a useful cue.\u003c\/p\u003e\n\u003cp\u003eMade in Japan, the SUSTEE soil moisture indicator stays in the pot and shows moisture changes through its viewing window. No batteries needed — a helpful reference for caring for bonsai and potted plants.\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003e\u003cstrong\u003eBlue:\u003c\/strong\u003e moisture is still available; watering is generally not needed.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFully white:\u003c\/strong\u003e a watering cue. Check your plant's needs and the actual condition of its growing medium.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eLeave it in the pot:\u003c\/strong\u003e observe it daily without removing and reinserting it.\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSold individually · S \/ M \/ L · White \/ black \/ green\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBuy 3 or more for free shipping; mix sizes and colours. Delivery arrangements are confirmed via WhatsApp.\u003c\/p\u003e\n\u003ch3\u003eChoose by soil depth\u003c\/h3\u003e\n\u003cp\u003eCheck the actual depth of soil inside your pot, then choose a size that can be inserted to its markers. \u003cstrong\u003ePot height, soil depth and full stick length are different measurements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\u003cthead\u003e\u003ctr\u003e\u003cth\u003eSize\u003c\/th\u003e\u003cth\u003eSelection guide\u003c\/th\u003e\u003cth\u003eFull stick length\u003c\/th\u003e\u003c\/tr\u003e\u003c\/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003eS\u003c\/td\u003e\u003ctd\u003eConsider for small or shallow pots\u003c\/td\u003e\u003ctd\u003e12 cm\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eM\u003c\/td\u003e\u003ctd\u003eEveryday plant pots; check actual soil depth\u003c\/td\u003e\u003ctd\u003e18 cm\u003c\/td\u003e\u003c\/tr\u003e\u003ctr\u003e\u003ctd\u003eL\u003c\/td\u003e\u003ctd\u003eConsider for large, deep pots\u003c\/td\u003e\u003ctd\u003e25.5 cm\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eStick length is not the required pot depth.\u003c\/strong\u003e The soil must accommodate the insertion section so its surface sits between the two triangle markers. Keep the water inlet buried, with the viewing window and upper vent exposed. Do not bury the entire stick.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer does not publish a single centimetre-based pot-depth range for each size. Check the actual markers and soil depth; contact us if a shallow pot cannot accommodate the insertion section.\u003c\/p\u003e\n\u003cdetails\u003e\u003csummary\u003eManufacturer's pot-diameter reference\u003c\/summary\u003e\u003cp\u003eS: 6–9 cm; M: 10.5–18 cm; L: 18–36 cm. These are general pot-size references, not insertion depths. Wide, shallow bonsai pots still need a soil-depth check.\u003c\/p\u003e\u003c\/details\u003e\n\u003cp\u003eNot sure which size to choose? Send us a pot photo and its actual soil depth for advice.\u003c\/p\u003e\n\u003ch3\u003eHow to use\u003c\/h3\u003e\n\u003col\u003e\u003cli\u003e\u003cstrong\u003eInsert into the soil:\u003c\/strong\u003e choose a position near the roots, with the soil surface between the two markers.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eWater thoroughly on first use:\u003c\/strong\u003e water evenly and wait for the window to turn blue. Response time varies with size and growing medium; it can take about an hour in some conditions.\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eObserve daily:\u003c\/strong\u003e leave it in the same pot. When fully white, check the plant and water as needed. Do not keep adding water simply to maintain a blue window.\u003c\/li\u003e\u003c\/ol\u003e\n\u003ch3\u003eBefore you buy\u003c\/h3\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use it in a shallow bonsai pot?\u003c\/summary\u003e\u003cp\u003eConsider size S, but check that it can be inserted to the markers. Contact us first if your pot is particularly shallow.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I use it with akadama or coarse growing media?\u003c\/summary\u003e\u003cp\u003eParticle size and contact affect the response. Very coarse, fast-draining media can limit water uptake. If the soil is wet but the window remains white, check the position and core before adding more water.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eCan I move it between pots?\u003c\/summary\u003e\u003cp\u003eSUSTEE needs to stay in the soil to respond over time. It is not an instant probe. We recommend a separate indicator for each pot.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhen should I replace the core?\u003c\/summary\u003e\u003cp\u003eTypically after about 6–12 months, depending on growing medium and use. Reuse the casing with the matching refill size.\u003c\/p\u003e\u003c\/details\u003e\n\u003ch3\u003eProduct information\u003c\/h3\u003e\n\u003cp\u003eBrand: SUSTEE\u003cbr\u003eMade in Japan\u003cbr\u003eSold individually\u003cbr\u003ePlants and pots shown in photographs are not included. Availability is shown for each selected variant.\u003c\/p\u003e","brand":"BONSAI PLAN+T","offers":[{"title":"S | Small or shallow pots \/ White","offer_id":46162444746931,"sku":"C-0021-WH","price":42.0,"currency_code":"HKD","in_stock":true},{"title":"S | Small or shallow pots \/ Black","offer_id":46162444779699,"sku":"C-0021-BK","price":42.0,"currency_code":"HKD","in_stock":true},{"title":"S | Small or shallow pots \/ Green","offer_id":46162444812467,"sku":"C-0021-GR","price":42.0,"currency_code":"HKD","in_stock":true},{"title":"M | Everyday plant pots \/ White","offer_id":46162444845235,"sku":"C-0022-WH","price":52.0,"currency_code":"HKD","in_stock":true},{"title":"M | Everyday plant pots \/ Black","offer_id":46162444878003,"sku":"C-0022-BK","price":52.0,"currency_code":"HKD","in_stock":true},{"title":"M | Everyday plant pots \/ Green","offer_id":46162444910771,"sku":"C-0022-GR","price":52.0,"currency_code":"HKD","in_stock":true},{"title":"L | Large, deep pots \/ White","offer_id":46162444943539,"sku":"C-0023-WH","price":62.0,"currency_code":"HKD","in_stock":true},{"title":"L | Large, deep pots \/ Black","offer_id":46162444976307,"sku":"C-0023-BK","price":62.0,"currency_code":"HKD","in_stock":true},{"title":"L | Large, deep pots \/ Green","offer_id":46162445009075,"sku":"C-0023-GR","price":62.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/4025\/8483\/files\/plan-t-sustee-hero.png?v=1791296718","url":"https:\/\/planplust.com\/en\/products\/sustee-soil-moisture-indicator","provider":"BONSAI PLAN+T","version":"1.0","type":"link"}