How Often Do You Change Water In Hydroponics - Krostrade

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How Often Do You Change Water In Hydroponics

If you’re unsure how often do you change water in hydroponics, make it a habit every two to three weeks. However, do note that your set-up, plant growth, and pH requirements are your considerations for changing your hydroponic system’s water. This might seem tricky, but remember that to reap the benefits of hydroponics, you have to accept that the absence of soil and sunlight puts you with more responsibilities to ensure your plants’ success. 

Using a hydroponic system, in addition to a greenhouse, makes it possible to grow healthy transplants. Hydroponics and greenhouses allow everyone to have a year-round supply of food, which would be impossible if you’re limited in location and space. However, using this technology includes being diligent throughout the process, especially with how often you’ll change its water.

How Often Do You Change Water In Hydroponics

How Often Do You Change Water In Hydroponics: What To Consider


Bi-weekly changing, but…

As briefly mentioned, you should change your water every two to three weeks. But before you do so, consider reading about the three considerations since they influence the frequency of changing the water. You might think that changing water in hydroponics is as simple as dumping and replacing it bi-weekly, but this is just based on one factor alone. 

This bi-weekly schedule recommendation is because, within two weeks, the volume of the water in the tank will be equal with the volume of the added top-off water. Changing bi-weekly will prevent hydroponics to over-accumulate nutrients, and to also prevent the bacteria and fungal growth. However, this frequency may vary based on your set-up, plant growth, and pH level. 


Hydroponic Set-up

According to the University of Massachusetts Amherst, one of the disadvantages of hydroponics is that you must have technical skills. After all, hydroponics is far from traditional farming, and you’ll be relying on technology and background in chemical and plant production for it to work successfully—this one of the reasons why your set-up will affect the frequency of changing your water.

For example, your set-up might lose water faster from evaporation and plant usage. Your system might have a lot of light, heat, or water reservoir close to these sources. Additionally, using many plants means higher water usage, so changing the water might be more frequent than the base recommendation. 


Plant growth

More than having many plants, the rate of your plants’ growth also dictates how often you’ll change the water in hydroponics. The high yield and short growing time advantages in hydroponics also mean that your plants’ efficient evaporation and transpiration will consume the water in the reservoir. Therefore, you must prevent water loss by adding periodically to maintain the water volume. 

You might have read the term “topping off” earlier, which means adding water to achieve a consistent level. You do this gradually to maintain the nutrients without having them too concentrated in the solution. Compared to changing water, topping off can be as frequent as every two days or every day.


pH requirements

One adjusts the hydroponic pH levels using products and additives that raise and lower it to achieve the recommended level. It’s also normal for the level to fluctuate when you change the solution, but it shall rise to the right level; however, if you notice that it’s consistently out of range, you need to change your water thoroughly. 

After all, pH additives are not meant to solve the fluctuations completely. And for your plants to grow well, the pH should be at the recommended levels. For a long-term solution, change your water out.  


How To Change Water In Hydroponics

The frequency of changing the water in hydroponics is crucial, but so is your method’s correctness for the changing itself. To put it simply, you’ll change water both by topping off and completely changing it. These two methods are essential, and they should be regular parts of your routines. 

Earlier, this article discussed topping off your water reservoir. From the name itself, you top off the reservoir with water to maintain its volume and prevent it from being too concentrated. Topping off can be daily or weekly, but the emphasis is necessary on measuring how much you add so you’ll know when it’s time to change your water thoroughly. 

On the contrary, changing the water completely would not be as frequent. And the reason why you need to note the volume of the water you topped off is that if they reach half of your total reservoir volume, then it’s time to change the water in your reservoir completely. 



The hydroponic system, combined with greenhouse gardening, can open gardeners’ opportunities to have food year-round without space and location limitations. However, one of its responsibilities that you must learn is how often do you change the water in hydroponics. Generally, you do this on a bi-weekly basis, and topping off the water can be weekly or daily. 

However, your set-up, plant growth, and pH requirements also affect how often you need to change your water. These factors may seem overwhelming to learn, but when you’re growing in hydroponics, you will surely be familiar with them anyway. Note how much you top your reservoir, and this will also let you know when it’s time to change the water completely.


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How Long Do Azalea Bushes Bloom?

How Long Do Azalea Bushes Bloom?

If you’re trying to grow azaleas, you’re probably asking this question: How long do azalea bushes bloom? Before we get into that, you need to know more about this evergreen shrub.


Azaleas: The Basics

Countless gardening enthusiasts love azaleas because their presence can bring any garden to life. With their healthy and glossy green foliage and their brightly colored blooms that come in a variety of petal shapes, this type of rhododendron serves as one of the heralds of spring.

Although this favored garden guests come in many kinds, not all varieties can grow in the same region. However, as long as you choose the right tup of azalea variety, soil, as well as weather, and watering conditions, you can be sure that your azaleas will have what they need to thrive well and produce lots of flowers for months.

Among their distinguishing characteristics are their glossy, deep green-colored leaves that have small hairs on their surface. Furthermore, azaleas also feature single flowers instead of clusters.


Factors to Consider When You’re Growing Azaleas

Azaleas might be pretty, but if you’re not so sure about the factors you have to consider when you’re growing them, you won’t be able to make the most out of these plants.


Factor #1: They need a little love to get the best color

Azaleas may be one of the most reliable plants in your garden, but if you want them to show off their best colors and keep on producing the flowers you love, you need to give them some TLC. You can have the most blooms if you make sure that they get enough sun and get watered properly and on a regular basis.


Factor #2: The weather can influence their growth

Did you know that the weather conditions play a critical role in the bloom of your azalea? In case you’re not aware, the number of flowers they produce and the length of time they produce them are greatly affected when the temperatures dip. Expect their actual bloom dates to vary about a week or two.

The warmer the weather, the earlier their blooms erupt. What’s more, azaleas planted in these warmer areas bloom again in the fall.


Factor #3: There are over 900 species of them

You might be surprised to know that while azaleas have more than 900 species out there, you can find over 20,000 hybrids of Rhododendron spp., as well as azaleas. These all come in various shapes and sizes.

You can find azaleas that are both tall and spiky or bushy and small. They could look like they hug the ground or they could produce waves of gorgeous flowers dotting its canopy of deep green foliage.


How Long Do Azalea Bushes Bloom?

Generally, an azalea plant produces spectacular blooms for a period of three weeks during springtime. However, other types of azaleas also show off their gorgeous flowers during the summer depending on the region where they grow, as well as the weather.

In maritime and mild climates, the flowering season for azalea plants can be extended up to a period of seven months. On the other hand, azaleas that are planted in colder climates tend to have a shorter blooming time which could only range between three weeks to three months.

It’s best to select a type of azalea that blooms well during the milder months of the area where you plant them. To make this happen, make sure that you feed your azaleas with a balanced 15-15-15 fertilizer. In case you’re wondering, azalea plants will do well if they get more nitrogen.



Grow Your Precious Plants in a Mini Greenhouse!

If you don’t have enough space in your backyard, you might want to grow your plants in a mini greenhouse. Greenhouse gardening offers you loads of benefits that can help you take your gardening experience to the next level! Here are some of them:


Protection against bad weather conditions

Since a mini greenhouse is an enclosed space, you won’t have to worry about your plants when Mother Nature unleashes her fury. While other traditional outdoor gardeners get caught up making emergency preparations to ensure their plants’ safety, you can just sit back and wait for the storm to pass.


It keeps the pests and vermin away

Having a mini greenhouse can be a huge plus when it comes to protecting your plants from different types of destructive insects and animals. Your mini greenhouse serves as a barrier between your indoor garden and the pests.


You can control your plants’ growing environment

Creating an optimal growing environment for your plants will be much easier for you if you keep them in a mini greenhouse. Controlling the temperature, heat, and humidity levels inside the enclosed space won’t be difficult for you. What’s more, you can also choose to introduce beneficial insects to your garden to help your plant babies thrive well.


Extended growing seasons

With a mini greenhouse, you can effortlessly extend your plants’ growing seasons. It allows you to grow certain types of plants that aren’t native to your area.



Now that you finally know the answer to “How long do azalea bushes bloom?”, you might want to experience the wonderful benefits of greenhouse gardening today!


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