Using Rainwater for Plants

Nature is always beautiful and beneficial, no? So why not rainwater? What is better than having your plants watered without any effort? By just putting them in the right place.

Rainwater is far better in quality than any of the water you can find otherwise, like tap water, or well water. You can even drink it, but just be careful not to drink a lot of it.

It is said to be soft, compared to other water types, which makes it safer for plants. It has almost all the important ingredients needed by the plants for their growth. 

Is Rainwater Good for Plants?

The water of rain is far better than ordinary tap water in many ways as it contains fewer chemicals, fewer minerals, and salts, almost little to no pharmaceuticals.

Kindly consider yourself a farmer or gardener, if you really wanna know the real gains of using rainwater. You might have heard gardeners or farmers saying that due to lack of proper rain this year, the crop quality was severely compromised.

Why do they say that? Why can’t they just use tap or well water? This is where the chemistry comes in. Ordinary water usually possesses more chlorine as a disinfectant. Plants can get overdosed on chlorine because of that.

Fluoride is also added to ordinary water in order to remove cavities. It is said that many indoor plants fall prey to fluoride’s excess, in ways like being burnt, losing their color, or having spots on their leaves.

Rainwater, on the other hand, is free from all these added unnecessary chemicals. Direct water from the heavens is what the plants really desire.

All of those chemicals prove to be more harmful than beneficial for your plants. Furthermore, rainwater has relatively more oxygen present in it than any other common water. They become bright and fresh after the rain. The reason for that is that rainwater brings down nitrogen as nitrates.

Nitrogen is considered to be essential for the growth of the plant, and rainwater brings down lots of it, which is instantly absorbed by plants. That’s why plants seem fresh after the rain.

Slightly Acidic:

A lot of plants require about 5.5 to 7.0 pH for healthy growth, meaning that plants are good to have slightly acidic pH for their health.

Rainwater has a pH of 5.6, which makes it slightly acidic and more appealing for your plants. One more reason why rainwater is ideal for plants.

What does Rainwater Contain?

Simply, rainwater is an electrolyte that’s a product of various different ions like Sodium, magnesium, bicarbonate ions. and other. 

Along with nitrite, and nitrogenous compounds. Where do these elements come from? The sources are oceans, seas, freshwater lakes, volcanoes, industries, and many more.

Many people say that they used a certain amount of tap water on the plants and the same amount of rainwater, individually. The result was, as you can guess.

These components play an important role in all this. I mean, if it wasn’t for them, what different would rainwater be from others?

It contains carbon dioxide as well, which, once again, prove to be extremely essential for plant growth. Its pH is about 5.6 to 5.7, making it acidic. A study shows that plants do very well neutral and slightly acidic pH. The rainwater gets a Hell Yeah here as well.

Communities around the world use rainwater, instead of well or any other common water, for primary consumption, and frankly speaking, there is no harm in that.

But still, excess of anything is never good. Due to the chemicals that it contains, drinking too much of it might be bad. You are human of course.

How to Collect and Store Rainwater?

The freshwater of rain can be stored or collected in various ways, and for various reasons. Normal ways are water tubs and irrigation systems. If you plan on storing the rainwater in these tubs, you might wanna use them as soon as possible.

Although it is the simplest way, it is not the long-lasting one. If your clouds are generous enough to send down some fresh rainwater to your area, the use of pre-fabricated tanks would be the best way.

You can also make gutters and pipes to collect the water and send it down to the water storage. It’s called Rainwater Harvesting.

It is as simple as stocking then water in water tubs, but if used wisely, it can fulfill your household demands. Due to freshwater scarcity in many countries, rainwater harvesting has become a major system to make ends meet.

Many people do this to take control of the water supply, from the water that is simply pouring on your roof. You just have to make a way for it to go through the pipes and into the water storage tank.

How Long can you Store Rainwater?

Generally, it is expected to get polluted in about 7 days. But, you can keep it clean for as long as you, by keeping it away from the insects and the light.

After losing its quality, the rainwater can even become harmful to plants. But how does it lose its quality? Once it starts to get polluted by air, light, and several other factors, its quality starts to decline.

It is highly likely that if you keep the stored water in direct exposure to the sunlight, the Algae will start to grow, as it requires sunlight for growth.

If you live in a populated area where there are a lot of cars and factories, they make the rainwater extremely polluted and unusable. This is what causes Acid rain.

Should Plants be Left in the Rain:

Yeah, you should consider putting them under rainfall, after knowing its pros and cons. While tap water is said to be hard on plants, due to its minerals, like chlorine. Putting your plants under the rainfall would provide them with a much-awaited bath.

Direct rainwater on your plant leaves will clear off any debris on them and makes it easier for them to take in CO2 for the purpose of photosynthesis.

Consider asking yourself that do my plants really need watering? Most house plants do just okay with simple daily watering, they don’t need much water at once.

Keeping it under rainfall overnight might also damage it severely.

Rain Water VS Tap Water for Plants:

As mentioned above, ordinary water is relatively harder than rainwater. Many plants are not choosy in the case of waters, but rainwater is what they desire. The reason is that it possesses dissolved nitrogen, it is slightly acidic, it absorbs CO2.

The lack of those nutrients that harden the tap water is what increases the appeal of rainwater among plants. You can try it yourself. Try pouring a bucket of tap water on a plant and the same amount of rainwater on a plant.

You will see that the rainwater actually freshen up the plant, making it greener, helping in its growth, along with vegetables and fruits.

Also, the water of rain contains more oxygen than ordinary water, and you can guess, why is that a good trait of this water.

Overall, the freshwater of rain scores high in this comparison against common water. Thank you.

Leave a Comment