Hey there, plant lovers! I'm a supplier of hoya plants, and I get asked a ton of questions about these amazing plants. One of the most common questions I hear is, "How long can hoya plants survive in water?" Well, I'm here to break it down for you and share everything you need to know.
First off, let's talk about why someone might want to keep a hoya plant in water. There are a few reasons. Maybe you're trying to propagate a new hoya plant from a cutting, or perhaps you just like the look of a hoya sitting in a cute vase of water. Whatever the reason, it's important to understand the ins and outs of keeping a hoya in water.
When it comes to how long a hoya plant can survive in water, it really depends on a few factors. The type of hoya, the conditions it's kept in, and how well you take care of it all play a role.
Let's start with propagation. If you're using water to root a hoya cutting, it's usually a short - term situation. Most hoya cuttings will start to develop roots in water within a few weeks. For example, Hoya Kerrii Heart, a popular variety, can take anywhere from 2 - 4 weeks to form roots in water. You can check out more about the Hoya Kerrii Heart on our website.
Once the roots are about an inch or two long, it's a good idea to transfer the cutting to soil. Why? Well, water doesn't have all the nutrients that a hoya plant needs in the long run. While it can support root development, soil provides a more stable environment with a rich supply of nutrients.
But what if you just want to keep your hoya in water for display purposes? In this case, it can survive for a while, but it won't thrive indefinitely. A hoya plant can generally last several months in water, but you'll start to notice some issues over time.
One of the main problems is the lack of nutrients. Water doesn't contain the nitrogen, phosphorus, and potassium that hoyas need to grow and stay healthy. Without these nutrients, the plant will slowly start to decline. You might notice that the leaves become pale or start to drop off.
Another issue is oxygen. In a water - filled container, the oxygen levels can become depleted. Hoyas, like all plants, need oxygen for their roots to function properly. If the roots don't get enough oxygen, they can start to rot. This is especially true if the water isn't changed regularly.


To keep your hoya in water for as long as possible, there are a few things you can do. First, change the water every week. This helps to replenish the oxygen and prevent the build - up of bacteria. You can also add a small amount of liquid fertilizer to the water every few weeks. Just make sure to use a fertilizer that's diluted to half - strength, as hoyas are sensitive to strong fertilizers.
It's also important to keep the hoya in a location with the right amount of light. Hoyas prefer bright, indirect light. Too much direct sunlight can heat up the water and damage the plant, while too little light can slow down its growth.
Now, let's talk about the different types of hoyas and how they might fare in water. Some hoyas are more resilient than others. For example, Hoya carnosa is a relatively hardy variety and can tolerate being in water for a bit longer compared to some of the more delicate species.
On the other hand, some of the rarer hoyas might not do as well in water. They might be more sensitive to the lack of nutrients and oxygen. So, if you have a rare hoya, it's probably best to transfer it to soil as soon as the roots are established.
If you're new to growing hoyas in water, I recommend starting with a common variety like Hoya pubicalyx. It's a great plant to experiment with and will give you a good idea of how to care for hoyas in a water - based environment.
In conclusion, while hoya plants can survive in water for a certain period, it's not a long - term solution for their growth and well - being. For propagation, water is a great tool to get those roots started, but for long - term care, soil is the way to go.
If you're interested in purchasing hoya plants, whether you want to try growing them in water or soil, I'd love to hear from you. We have a wide variety of hoyas available, from the popular Hoya Kerrii Heart to some of the more unique and rare species. Feel free to reach out to me to start a conversation about your hoya needs. We can discuss the best plants for your situation and answer any other questions you might have.
References
- "The Hoya Handbook" by an unknown horticulturist
- Various online forums and blogs dedicated to hoya plant care
