Mandevilla Fertilizer: What Is The Best Fertilizer For Mandevilla

Pinterest Hidden Image

If you have a Mandevilla plant, you know how beautiful and vibrant it can be. But, like all plants, Mandevilla needs the right nutrients to stay healthy and strong. That’s where Mandevilla fertilizer comes in.

There are a lot of different Mandevilla fertilizers on the market, so how do you know which one is best for your plant?

Best Mandevilla FertilizerPin

You want a fertilizer that contains essential nutrients specifically formulated for Mandevillas and is easy to apply.

We’ve researched and found the best Mandevilla fertilizers on the market, so you can keep your plant looking its best. Read on to find out more!

Why Do Mandevillas Need Fertilizer?


Mandevillas are beautiful flowering plants that add color and life to any garden or home.

But, like all plants, they need the right nutrients to maintain their health and vigor. That’s where mandevilla fertilizer comes in.

Mandevillas are native to South America and grow in nutrient-rich soil in their natural habitat.

However, the soil in most gardens is not as naturally fertile, so mandevillas need a little extra help from fertilizer to thrive.

Fertilizer provides mandevillas with the nutrients they need for healthy growth, including nitrogen, phosphorus, and potassium.

These nutrients are essential for mandevilla vines to produce strong stems, leaves, flowers, and fruit.

A large potted plant with pink flowers in a gardenPin
Photo Credit: Instagram @koremanlandscape

Mandevillas are heavy feeders and need many nutrients to grow and bloom well.

They especially need high phosphorous levels, so it’s important to use a fertilizer that contains this essential element.

If you’re unsure whether your mandevilla is getting enough phosphorous, look for signs of deficiency such as stunted growth, small leaves, and slow flowering.

If you see any of these signs, apply a fertilizer that contains phosphorous to help your mandevilla get the nutrients it needs.



Without adequate fertilizer, mandevillas will be more susceptible to disease and pests, and their overall growth will be stunted.

White flowers with yellow centers surrounded by green foliagePin
Photo Credit: Instagram @fortgeorgebotanicals

Related: Mandevilla Aphids – Are aphids attacking your Mandevilla? Control tips here.

The Best Mandevilla Fertilizer

When it comes to mandevillas, the best fertilizer is one high in phosphorus. This will help to encourage blooming and promote healthy root growth.

Red flowers with yellow centers in full bloom, hanging against a wooden fencePin
Photo Credit: Instagram @through.lauras.eye

Our favorite fertilizer for Mandevilla is Miracle-Gro fertilizer, which contains all the nutrients mandevillas need to thrive.

However, any fertilizer with a high phosphorus content will do the trick. Just follow the directions on the packaging so you don’t over or under-fertilize your plant.

Alternative Mandevilla Fertilizer Options

If you’re looking for fertilizer to encourage beautiful blooms on your Mandevilla plant, look no further than fertilizers with high phosphorous content.

Bone meal and superphosphate are great options to help your Mandevilla plant thrive and produce stunning flowers.

Two white flowers with a yellow center, surrounded by green leaves against a white backgroundPin
Photo Credit: Instagram @urban.jungle.marie

You can find a bone meal, superphosphate, or our favorite- Miracle-Gro- at your local nursery or home improvement store.

With a little care and the right fertilizer, your Mandevilla plant will bloom beautifully in no time!

How To Apply Mandevilla Fertilizer?

When it comes to Mandevilla fertilizer, more is not always better. Over-fertilizing can actually damage the plant.

The best way to apply Mandevilla fertilizer is to start with a small amount and increase it gradually as needed.

One of our favorite Miracle-Gro products on the market is Miracle-Gro® Indoor Plant Food Spikes.

A flowering plant with a white hibiscus-like bloom and several buds, with a rocky ground in the background.Pin
Photo Credit: Instagram @alabamaplantwholesale

These spikes release nutrients slowly so that you can feed your Mandevilla for up to two months with just one application.

And since they’re specifically designed for indoor plants, they won’t overfeed or burn your Mandevilla as other fertilizers can.

To use Miracle-Gro® Indoor Plant Food Spikes, simply insert them into the soil around your Mandevilla plant.

Then, apply them every two months during the growing season for the best results.

Keeping Your Mandevilla Healthy And Happy

In addition to the right fertilizer, Mandevillas also need plenty of sunlight and water to thrive.

Place your Mandevilla plant in a spot that gets at least six hours of sunlight per day, and water it regularly (but don’t overdo it).

A close-up of a pink flower with a yellow center surrounded by buds and green leaves.Pin
Photo Credit: Instagram @secorfarms

Your Mandevilla just needs a little TLC to flourish.

We hope this article helped you learn more about Mandevillas and how to keep them healthy and happy.

Check out our website for more gardening tips and tricks. Happy planting!

Recommended Reading