rice water

There are many different uses for rice water, but one of the most interesting is that it can be used to fertilize plants.

Rice water has a lot of nutritive components that make it an excellent fertilizer for healthy plant growth. It also contains minerals and vitamins which help promote plant health.

Rice water can be applied using any method and ward off pests when fermented; all while providing your plants with the necessary fertilizer.

What is Rice Water?

Rice water is the nutritional byproduct of cooked rice. After rice is cooked, the water that it was boiled in becomes a cloudy white liquid with a slight odor. This liquid is known as rice water and can be used to fertilize plants and promote plant health.

The main reason why rice water makes an excellent fertilizer is that it contains minerals and vitamins that help plants grow.

Rice water contains NPK fertilizer which is the most basic form of soil nutrients in order to promote healthy growth.

Not only does rice water contain NPK, but it also has many different compounds and fatty acids that give it its distinct flavor when cooked with rice which can affect how well your plants grow depending on what you feed them.

The main ingredient found in rice water is carbohydrates; however, there are a number of other elements such as salts, amino acids, oils/lipids, sugars/carbohydrates, and proteins.

Together these components provide for an effective nutrient source to fertilize your garden or indoor plants so they can continue growing big and strong. Not only nutritious for vegetables but great for flowers too!

How To Use Rice Water to Benefit Plants

There are a number of ways to use rice water to fertilize plants and each way has its own benefits. One popular way is to mix it with your soil before planting.

Rice water can also be used as a foliar spray by mixing it with water in a ratio of 50:50 and spraying the leaves of your plants.

You can also apply rice water directly to the roots of your plants by using a watering can or hose. If you have an outdoor garden, you can simply pour the rice water around the base of your plants.

No matter which method you choose, make sure that you dilute the rice water accordingly so that it doesn’t burn or damage your plants.

Also, keep in mind that over-fertilizing plants with rice water can kill them so you need to make sure that the plants are absorbing the nutrients properly.

If your plants do happen to die, don’t be discouraged because there is still hope! Simply remove any dead plants and plant new ones in their place as it’s common for young plants to start dying after a transplanting period.

By doing this, you’ll have an even healthier garden by providing fresh soil filled with organic material from your old beds.

The good thing about using rice water is that if all else fails then you know what not to use going forward when fertilizing your gardens!

boiling rice

What does Rice Water Contain?

Rice water contains many different compounds and fatty acids which give it nutritive properties such as carbohydrates, salts, amino acids, oils/lipids, sugars/carbohydrates, and proteins. This makes it an excellent nutrient source for plants to grow big and strong!

Carbohydrates: Rice water typically contains a carbohydrate concentration of about 70%. It’s also known as the main ingredient which is why rice water has such a low amount of other elements because they’re secondary in comparison to this primary compound. Carbs are basically what plant cells use for energy so having enough carbs allows your plants to create large amounts of cell matter; especially if you’re applying rice water directly on roots or leaves where photosynthesis occurs (the process that converts light into chemical energy).

Amino Acids: There are two types of amino acids found in rice water, essential and non-essential. Essential amino acids are what plants need to survive; however, they can’t produce them on their own so you have to provide these nutrients for your garden or indoors through fertilizing with rice water! Non-essential amino acids are not necessary for survival but do help promote growth in plant cell production which is why it’s important that both types of compounds be present when using rice water as a fertilizer source.

Lipids/Oils: Lipids or oils are basically fatty acids found within the cells of all organisms where they play an important role by providing energy storage along with being structural components in cell membranes just like phospholipids contain phosphorus atoms attached at one end to two hydrogen atoms while also having a lipid group in the middle. Plants can use lipids to store energy during photosynthesis and they’re also used for membrane structure just like phospholipids are.

Sugars/Carbohydrates: Carbohydrates provide plants with their primary source of energy which is why it’s important that rice water contain sugars or carbohydrates because these compounds allow your garden to stay healthy while continuing to grow big and strong!

Salts: Salt ions (Ions) play an essential role when growing plants indoors, outdoors, or even if you have container gardens; especially since salt ions act as triggers in many plant growth processes such as germination, root hair development, enzyme activity, osmotic changes, etc. Salts are what make rice water a great fertilizer because it helps to improve the absorption of other nutrients by the plants!

Proteins: Rice water typically contains about 0.05% proteins and these compounds are essential for promoting growth in plants. Not only do they help with cell division but they also increase chlorophyll production which is important for photosynthesis. By having proteins present in rice water, you’re ensuring that your garden will have all the nutrients it needs to thrive!

What Does This Mean For You?

Now that you know what rice water contains, you can use this information to your advantage when fertilizing your plants either indoors or outdoors.

As long as you’re providing enough carbohydrates, amino acids, lip/oils, salts, and proteins then your plants will be able to photosynthesize and create energy effectively while staying healthy.

Not only that, but rice water can also help to ward off pests when used as a fermented fertilizer which is an added bonus.


The next time you cook white rice, remember to save the water and use it as a natural plant fertilizer for your garden or indoor plants.

It’s an easy way to give them the essential nutrients they need to grow big and healthy!

You can also apply rice water using any method you please such as watering cans, spray bottles, buckets, or irrigation systems.

And if you’re looking for an even easier solution, why not try fermenting the rice water? This will help keep pests away while providing your plants with all of the benefits that come with fermented rice water goodness!

Who knew something so simple could be so beneficial? Rice water is definitely a powerhouse when it comes to taking care of your plants – good thing we know about it now.