Monstera Fertilizer: Best Options (Plus 6 Important Fertilizing Tips)

While there are lots of Monstera fertilizer options available, using the right type of plant food is critical; as is amending the soil in the pot from time to time.

Feeding your Monstera on a regular basis will keep it growing healthily, with attractive large leaves that have lots of fenestrations. Providing these plants with the nutrients they need will speed their growth rate and prevent problems with pests and diseases.

Fertilize a Monstera plant once a month during the growing season in spring and summer. Feed them using a balanced organic liquid houseplant fertilizer. Dilute the fertilizer to half-strength to avoid overfertilizing and nutrient burn. Half a teaspoon per gallon of water is enough.

This is certainly not the only method for feeding a Monstera – we discuss all the ways in this article. There are a few key points to keep in mind when you fertilize these tropical houseplants. Feeding them the right way will cause them to flourish, but incorrect use of fertilizer can be disastrous.

Is It Necessary To Feed A Monstera?

There is a finite amount of organic matter and nutrients in potting soil. As the plant grows, it will use up these nutrients. Fertilizing adds some of these nutrients back into the soil.

If you are growing a Monstera plant outdoors and its roots are in the ground, it is not strictly necessary to fertilize. You can put compost and mulch on the soil around the plant. As this organic matter decomposes, it nourishes the soil.

Monstera leaves

Benefits Of Fertilizing Monstera

There is a score of benefits to fertilizing a Monstera with the right plant food at the right time:

  • Strong, healthy plants without nutrient deficiencies are more resistant to pest problems or diseases.
  • Optimize the growth rate of the plant.
  • Monstera leaves grow larger and have more holes or fenestrations.
  • Keep the foliage deep green and lush. Plants with nutrient deficiencies look yellow.

Related: Propagating Monstera Without Node: Important Expert Tips

Best Monstera Fertilizer

There are two main options when it comes to choosing a fertilizer for our Monstera: synthetic or organic. Both these types contain the essential nutrients that plants need – nitrogen, phosphorus, and potassium.

Feed your Monstera with a fertilizer that has an NPK ratio of 3-1-2. This is the right balance of macronutrients they need to grow healthy stems, roots, and leaves. A 20-20-20 ratio works well too.

Synthetic Fertilizer For Monstera

The most popular chemical fertilizer that people use for indoor Monsteras is a liquid concentrate. One must dilute it with water to feed it to the plant.

The more you dilute it, the better. These fertilizers release a lot of nutrients into the soil very quickly, so if it’s too strong, it will burn the plant.

Use ½ a teaspoon for every gallon of water and stir the mixture well. Feed this to your Monstera every 2 weeks. Use 2 to 3 teaspoons per gallon if you feed your Monstera monthly

Another type of synthetic fertilizer to feed a Monstera is a granular fertilizer that is designed to release nutrients into the soil gradually. Look for a product that is labelled “slow-release”.

Add a quarter-pound of the granules to the soil in early spring to give the plant a boost at the beginning of the season. Add more every 8 or so weeks.


Organic Monstera Fertilizer

Organic fertilizer contains a range of micronutrients and beneficial organisms, as well as nitrogen, phosphorus, and potassium. They typically release nutrients into the soil much more slowly than synthetic products.

You can feed with organic fertilizer more frequently without the risk of harming the plant.

The best organic fertilizers for Monstera are:

  • Organic liquid fertilizer
  • Worm casting

Organic liquid fertilizer is diluted in water and fed to plants. It is good to use a slightly lower application rate than is recommended on the bottle.

Worm castings are earthworm poop! This substance is amazing for plants and soil because it contains beneficial microbes. Don’t worry – they do not smell.

You should add a quarter-inch to a half-inch of worm casting to the soil surface twice annually.

When To Fertilize A Monstera

Monstera plants grow most actively in spring and summer when they get more warmth and light. During the colder months of the year, their growth slows down, and they enter a state of dormancy.

When a Monstera is dormant, it needs very little water and does not need extra nutrients in the soil. You should not fertilize a Monstera late in the fall or during winter.

If you feed a Monstera while it is dormant, nutrient salts will build up in the soil as the plant is not taking up the nutrients. These salts are harmful to the plant’s root system.

How Often To Fertilize A Monstera

Depending on the growing conditions, Monsteras generally need a feed every 2 to 4 weeks during the spring and summer.

The frequency of feeding depends on the medium you are growing your Monstera in. If you are growing your plant in a soil-less medium, like LECA, you will need to fertilize more frequently than if you are growing it potting soil with organic matter.

Fertilizing more often than fortnightly is likely to harm the plant. You may see the foliage looking yellow with burnt edges if you feed too often.

It will not negatively impact your plant if you fertilize it less often than once a month. You will see the growth rate slowing down, in which case, give it a feed.

Fertilizing monstera

Avoiding Overfertilizing A Monstera!

Overfertilizing is a serious danger to plants! If there is way more nutrients in the soil than the plant can use, minerals build up in the soil as salts.

You may see a white, crusty, chalky substance on the soil surface. Another sign of overfertilizing is brown leaf tips.

Overfertilizing causes nutrient burn. The salts that accumulate in the soil draw moisture from the plant’s roots, burning them. You can kill a plant by overfertilizing it.

To avoid overfertilizing, remember the mantra “less is more”. Always dilute the fertilizer a little more than it says on the packaging or use fewer granules than recommended.

How To Save An Overfertilized Monstera

If you have accidentally fed your Monstera too much, here is what to do to avoid nutrient burn:

  • Firstly, put your Monstera’s pot in a sink or the shower and water it thoroughly.
  • Water needs to run through the soil and escape out of the drainage holes.
  • This will flush out the excess fertilizer in the soil.
  • Allow your Monstera’s soil to dry almost completely before resuming your regular watering routine.

Also Check: How To Propagate Monstera Adansonii (3 Highly Effective Methods)

Tips For Fertilizing A Monstera

These fertilizing tips from expert plant collectors will help to keep your Monstera in great condition:

  • Do not wet the foliage. Sprinkle the diluted feed onto the soil surface, avoiding getting the leaves wet. Drops of water on the leaves can attract fungal spores in the air and cause disease.
  • Throw out the excess water in the saucer under the pot after you feed. Monsteras hate living in saturated soil, so to maintain adequate drainage, always make sure the saucer is empty.
  • Choose organic fertilizers over synthetic, chemical fertilizers. It is better for your plants and the environment.
  • Amend the potting soil with organic matter, like bark chips, worm castings, and compost when you pot a new Monstera, and whenever you repot. They will break down slowly, gradually releasing nutrients and promoting healthy life in the soil.
  • Once every year, flush your Monstera’s soil thoroughly to balance the soil pH. It is best to do this in the summer. In very low pH soils, Monstera plants struggle to take in iron.
  • Feed your Monstera a diluted mixture of water and chelated iron once a year. Thoroughly drench the soil with the mixture after you have flushed the plant.

Conclusion on Monstera Fertilizer

Fertilizing a Monstera is key to maintaining fast, healthy growth. When the nutrients in the soil are depleted, plants develop nutrient deficiencies that hamper their growth. Therefore, it is critical to feed your potted Monstera plant during its active growing season.

There are a number of options when it comes to feeding a Monstera plant. Organic fertilizers have a number of benefits over synthetic fertilizers, but the latter is just as good at providing plants with the nutrients they need to flourish.

References & Other Resources