7 Reasons for Mandeville Not Blooming [Practical Solutions]

Mandeville plants are characterized by pink-colored vibrant looking flowers. Whether a Mandeville plant will bloom in tropical or sub-tropical areas is completely dependent upon the amount of sunshine and water it receives. This plant can’t grow well in colder temperatures so, if you live in colder areas, you must make the necessary arrangements before you bring home a Mandeville plant.

Mandeville Not Blooming

There are a lot of things to be taken care of except water and sunlight. These factors can’t be neglected as they are major requirements of the Mandeville plant and if not met, they won’t let the plant bloom the way it should. Read on to know more reasons why Mandeville isn’t blooming:

Why is Mandeville not blooming? 

Do you have a Mandeville plant at home that has stopped blooming even in the right season? You might be wondering what can be the reasons why Mandeville has stopped producing flowers. Here are some of the main reasons you should be aware of: 

1. Irregular pruning 

Not pruning your Mandeville plant regularly may stop it from blooming. Pruning encourages new growth and allows the plant to grow new parts. 

Irregular pruning 


The best solution to this problem is to prune your Mandeville plant during the onset of spring or when you repot the plant. Pruning will trigger the plant to bloom and you will get fresh flowers. 

2. Incorrect soil type 

Poor drainage can be an important cause for your Mandeville plant not blooming. When the soil in which it is planted holds excessive moisture, it will make the plant get into survival mode. As this starts to happen, the Mandeville plant will put in all of its energy on healing and repairing itself than on producing flowers. 

Incorrect soil type 


For your Mandeville plant to bloom properly, you must ensure to plant it in proper soil. Proper soil it is meant that the soil must be well-drained. You can also use a combination of the builder’s sand, potting soil, and peat moss. Provide ample growing area to the root system of your Mandeville plant. When you place this plant in a container, repot the plant as soon as the roots start coming out of drainage holes. 

3. Improper hydration 

Checking for proper hydration is a must if you want to have Mandeville flowers. The best way to ensure that your Mandeville plant is well hydrated is to check the soil near the roots of the plant. The soil shouldn’t be too wet or moist to touch. If the soil is wet for a long time, the condition will cause the rotting of the plant roots. In case the soil is too dry, the plant will start wilting due to dehydration. 

Improper hydration 


If the plant is planted in temperate areas, reduce watering in the cooler periods of the year. Water only when you see dryness in the topsoil from the top. Don’t forget the fact that the subtropical and tropical nature of this plant means that it will get dehydrated easily because of the hot and humid weather. 

Kept in hot and humid areas of the garden or home, this plant will need more watering to prevent it from getting dry. Also, with the bigger size of the plant, you will need to water it more frequently so you must keep this in mind as well. 

4. Lack of sunlight 

Mandeville is a subtropical and tropical flowering plant. Other plants can survive in shady areas but this plant flowers only when you keep it under sufficient sun exposure. The more sunlight your Mandeville plant can receive, the higher the chances for it to bloom. As mentioned already, if you find that your Mandeville plant is growing without flowers, the reason can be a lack of sunlight. 

Lack of sunlight 


All you can do is keep the Mandeville plant in a place where it can get a minimum of 6-8 hours of direct exposure to the sun. Do this eventually so that your plant doesn’t get a shock from sudden exposure to sunlight. The best locations for this plant to grow are the east-facing or south-facing areas. Also, mild sun exposure will provide ample light without chances of leaf burn to the plant. 

On the contrary, some gardeners also notice that this plant can tolerate the harshness of the afternoon and noon Sun. There are a few species that can bloom in regions with indirect and bright sunlight. In either case, let the Mandeville plant remain in sunlight, and soon, you will see buds turning into flowers. 

5. Inadequate fertilization 

Apart from watering, Mandeville plants also need fertilizing at the interval of 2-3 weeks in the growing season of the plant. In the cold winter season, you can stop using fertilizer and start again in the summer and spring seasons. This will prevent unnecessary reactions from your Mandeville plant. 

Inadequate fertilization 


You can use a water-soluble fertilizer with high content of phosphorous as it can help the plant to bloom properly. The ratios of mixing fertilizer will vary from one manufacturer to another so you must go through the instructions to know frequencies and effective methods of application. 

6. Incorrect room temperature 

Mandeville plants mostly prefer to be in areas with warm temperatures than the colder areas. If the temperature drops below 65 F, the plant will stop blooming as it will be forced to hibernate temporarily. Again, if it gets exposed to cold temperatures for a longer period, the plant will suffer a sudden shock and may die.  


If you place the Mandeville plant in a container, you can keep it indoors if you’re living in an area where the climate is cold. You must also assure that the room temperature where you keep the plant is 65 F or more. If you leave your Mandeville plant outside in the cold, it will cause the plant to perish. 

7. Poor soil drainage 

Mandeville is a plant that can grow in different types of soil provided, the soil is properly drained. If the plant gets stuck into soggy, heavy soils, it will stop flowering due to stress. The roots of Mandeville plants like to be in the soil so if you grow it within a pot, ensure that it has ample space so that the roots spread in the soil and the pot has ample drainage holes. 

Poor soil drainage 


The best way to grow Mandeville is to plant them in a mixture of peat moss, potting soil, and builders’ sand, all in equal amounts. Repot your Mandeville plant in a big container if needed so that it gets enough space for growth and blooming. 


These are some of the most common causes why a Mandeville plant stops blooming. If you notice that your Mandeville plant is growing but is not producing flowers, you must try and figure out the reason. Possibly, the reason will be anyone out of those mentioned above in this post. 

With every reason, you will find that the solution is also mentioned. You just need to be confirmed about the cause and then use the proper solution to get rid of that cause. As soon as you are clear about the cause, use the right fix and see how effectively it works. 

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