How To Grow Phlox From Cuttings Successfully

Knowing how to grow phlox from cuttings is easy because it only takes two steps. Propagating phlox is generally comfortable, and you can divide them, but it’s understandable why most gardeners prefer starting phlox from cuttings. The fact that there are several phlox species even makes it more exciting to create more plants for your garden, and you can be sure that you’ll get a plant that’s true to the variety’s characteristics.

However, propagation and starting plants will always be a sensitive step in any plant. You want to provide the ideal growing environment for phlox, which is easy to achieve with a greenhouse’s stable conditions. Once you’ve successfully established phlox, maintenance will be smooth sailing and as comfortable as cutting back foliage


How To Grow Phlox From Cuttings Successfully

How To Grow Phlox From Cuttings: Complete Easy-To-Follow Guide


Step #1. Taking cuttings

The first step is gathering the cuttings themselves.  You want the sections you’re getting to be disease-free, and the parent plant itself is healthy. Some gardeners also recommend watering the phlox the night before you plan on taking the cuttings. 

In general, you can take the cuttings either in summer or fall or when phlox is actively growing. You can plant the cuttings in fall, but you can also root them in the greenhouse and still have a productive season. Cut a 6-inch section below a leaf using a sharp and sterilized knife. 

Make sure that the cuttings you have are free of flowers and have at least a leaf. Much like rooting other plant cuttings, you want to remove the bottom leaves except those at the top. You can also dip the end in rooting hormone powder to encourage root development, but phlox are known to rooting easily anyway. 


Step #2. Rooting cuttings

Once you have your cuttings, you can plant them for root establishment. You want a moist yet well-draining medium and gardeners often use a mix of sand, peat, and perlite. Using a greenhouse can be advantageous for phlox development because you can maintain the ideal environment for the cuttings. 

The location for them should be bright but out of direct sunlight and away from harsh temperatures and conditions. You can also cover the container with a plastic bag to create a moist environment. Still, you should always check your cuttings for potential mold growth or if they need watering. 

The cuttings should develop roots around four weeks, given that you maintained the greenhouse between 65 to 75°F. You can also gauge if you can transplant at this point. However, remember to harden your young plants first before planting them outdoors. 


How To Take Care Of Phlox

Like most plants, you want to transplant your cuttings in spring after the danger of frost has passed. Please choose an area with fertile and well-draining soil and keep it moist. However, it’s worth emphasizing that you have to check your phlox species’ specific requirements because some prefer shade, while others require light exposure. 

For the maintenance itself, you want to maintain moisture and regularly water the plants, especially during hot days. You can also mulch and add compost on the site every spring to help keep the ground moist. And depending on the phlox you have, you can fertilize with an all-purpose fertilizer early in spring. 

Do phlox need deadheading? Removing faded blooms will encourage reblooming and an overall neater look on your plants. You can also cut back your plants after the first frost in the fall to maintain your phlox. 


Common Problems Of Phlox

Using the greenhouse is not only useful to support the growth of phlox cuttings. The controlled indoor conditions and practices also help prevent the common diseases and pests of phlox. For example, anyone who has grown phlox has probably heard or encountered the fungal disease called powdery mildew. 

Simple environmental conditions and general practices should help prevent powdery mildew. For example, you want to make sure that you don’t get your plants’ foliage wet, and their space offers good air circulation. Hot and humid weather also encourages this disease, so be mindful if your climate is harsh. 

When it comes to pests, you can always do preventative measures to keep bugs out of the greenhouse. Phlox is especially prone to spider mites, but much like powdery mildew, they are common in hot conditions. Always check your plants and isolate those with pests immediately. 



The various phlox plants available makes them one of the most exciting groups to cultivate. If you have favorite varieties or cultivars, it’s essential to know how to grow phlox from cuttings for a fuss-free way of getting more plants. It only takes two steps, which are collecting and rooting, and you can use a greenhouse to create a stable environment for phlox establishment. 

You can start collecting cuttings in summer or fall, and you can root in the greenhouse to protect the young plants from extreme climate. Phlox cuttings also readily develop roots, but you can speed the process by using a rooting hormone. Afterward, please place them in a moist and well-draining mix onto a bright location. 

Your plants should be ready for transplanting after four weeks, and later on, you can divide the more mature phlox plants.


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How To Prevent Root Rot In Hydroponics: 3 Useful Tips

If you’re a newbie gardener who’s looking to find ways to hone your skills, you’d want to learn how to prevent root rot in hydroponics even before this problem affects your plants.

Hydroponics can be advantageous to crops in more ways than one. However, it also comes with risks of diseases, such as root rot, which can be destructive or even lethal to your plants.

Unfortunately, there are no effective methods to recover the wilted parts that were affected by the root rot once it hits your plants. The only thing you can do if you do not want this catastrophe to befall your crops is to prevent it before it happens. Read on to learn more about this subject.


What is Root Rot?

Root rot is a disease that attacks the plant roots and causes them to suffer decay. This usually happens when a lack of oxygen supply occurs in the substrate.

To give you an idea, think about plant roots that are submerged in water that only has a little oxygen in it. Over time, the plant suffocates and dies.

Aside from rot and decay, this disease also leads to the proliferation of fungi that are naturally present in the soil. These include Rhizoctonia, Alternaria, Pythium, Botrytis, Fusarium, or Phytophthora. As soon as fungi colonies start to grow, they tend to target the weakened roots and infect your precious plant babies.

Once the plant becomes infected, they won’t be able to take in what they need to grow – water, oxygen, and other nutrients. When this happens, it won’t be long before the plant dies.


What is Hydroponics?

In case you’re not aware, the term hydroponic is derived from a Latin word that means “working water”. To put it simply, hydroponics is an art that involves growing various types of plants without soil. If you’re like most people, the first thing that comes to mind when somebody talks about hydroponics would be a picture of plants with roots suspended into the water without using any type of growing medium.


Avoiding Root Rot in Hydroponic Systems

Detecting and identifying root rot can be tricky. When your plants get infected, their leaves and roots gradually wither until the whole crop itself dies from the lack of nutrients, which is a common symptom of many diseases.


What causes root rot in hydroponics?

One of the requirements in hydroponics systems is oxygen. Without it, your plants are basically on the road to death. On the other hand, lack of such is one of the major triggers for root rot, and it must be avoided at all costs.

Just like when planting in soil, you loosen up the ground so that your plants’ roots can have their required intake of oxygen. That is the case for crops grown in aqueous solutions as well. If they cannot breathe, they would not be able to grow.

Another agent for root rot is the temperature. The last thing you would want in your system are parasites that leech nutrients intended for your plants and infect the water during the process. In common terms, these fungi are called molds.

One of the best breeding grounds for these is warm and moist areas. For this reason, if the water temperature inside your reservoir is high, then you are susceptible to it. Something as minor as letting the solutions exposed to sunlight can already be a risk factor.


3 Useful Tips on How to prevent root rot in hydroponics

There is good news! Root rot in hydroponics can be prevented! Just follow these tips:

Tip#1: Use the right air pump

If you do not want root rot to affect your plants, you merely have to avoid its causes. If you need oxygen, keep the water bubbling by providing an air pump of appropriate size, and also give importance to proper ventilation in the room.


Tip #2: Maintain the temperature

The temperature should be maintained within the 70 to 80 degrees F range. Get rid of any materials that can make your system vulnerable to infections, and make sure not to disturb your crops while they are trying to grow.


Tip #3: Get rid of the rotten parts

However, if you failed in preventing the disease, then the rotten parts should be removed immediately. Cut them off as there is no chance of reviving them, and focus on the potential new growth instead. Fix your hydroponics system and eliminate the risks.


Why Give Greenhouse Gardening a Try?

Greenhouse gardening offers numerous benefits to greens aficionados who dare to take their gardening experience to the next level. Aside from acting as a shield against the effects of inclement weather, a mini, hobby, or semi-pro greenhouse can also serve as a protective layer that keeps harmful bugs and critters at bay.

What’s more, its enclosed structure allows you to control your plants’ growing conditions including the temperature, light, moisture, and ventilation of the greenhouse’s internal environment. With a controlled environment, you’ll be able to extend growing seasons and grow plants that aren’t native to your area.



No matter how well-informed you are about how to prevent root rot in hydroponics, you cannot completely eradicate the risks. Therefore, to avoid the worst-case scenario, you should be prepared to sacrifice the infected for the sake of others. While you’re at it, consider trying your hand at greenhouse gardening as well.


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