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Tom’s Guide
Tom’s Guide
Technology
Kaycee Hill

Rice water is the secret to bigger, healthier plants — here's how to use it

Man watering a houseplant using a white jug.

Every time you rinse rice before cooking, you're pouring valuable plant fertilizer down the drain. That cloudy, starchy water contains nutrients and beneficial microbes that help plants grow bigger and healthier. Rice water is rich in nitrogen, phosphorus, and potassium — the three essential nutrients all plants need.

The starches also promote helpful bacteria in soil that support root development and overall plant health. Best of all, it's completely free and environmentally friendly. Understanding how to prepare and apply rice water properly makes the difference between thriving plants and damaged ones.

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