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The Best Fertilizer for Houseplants: Keep your plants healthy + happy in 2022

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If you want to keep your plants healthy and looking beautiful all year long, you need to use the best fertilizer for houseplants available to you.

Not all fertilizers are created equal, and using the wrong one can actually do more harm than good.

In this article, I will share the different types of plant food available and which fertilizers I like best for keeping my 40+ plants healthy and happy!

Without further ado, let’s get started with the best fertilizer for houseplants!

The best fertilizer for houseplants (A buyers guide)

the best fertilizer for houseplants

Types of fertilizers for houseplants

There are three main types of fertilizers: organic, inorganic, and synthetic. Each type has its own benefits and drawbacks, so it’s important to choose the right one for your plants.

But which kind is the best fertilizer for houseplants?

Organic fertilizers

Organic fertilizers are comprised of natural sources like compost or manure.

They release nutrients slowly over time, which is excellent for plants that need a steady food supply. However, they can be more expensive than other types of fertilizer and sometimes require more frequent applications.

Inorganic fertilizers

Inorganic fertilizers are made from minerals or chemicals.

Inorganic fertilizers release nutrients quickly, which is excellent for plants that need a quick food boost.

However, they can be harsh on delicate plants and may need to be applied more carefully.

Synthetic fertilizers

Synthetic fertilizers are comprised of a mix of chemicals.

They can release nutrients quickly or slowly, depending on the formulation. Synthetic fertilizers are generally more affordable than organic fertilizers, but they can be harmful to the environment if not used properly.

Synthetic fertilizers are the most cost-effective.

What is the N-P-K ratio?

Fertilizer is essential for plant growth, but understanding the fertilizer ratio or the NPK can be confusing!

The NPK refers to the ratio of nitrogen (N), phosphorus (P), and potassium (K) in fertilizers. It is always expressed as N-P-K.

The fertilizer ratio is the nitrogen, phosphorus, and potassium percentage n the fertilizer. The three numbers represent the amount of these essential nutrients in the fertilizer.

For example, a fertilizer with a ratio of 10-10-10 contains equal amounts of nitrogen, phosphorus, and potassium.

Plants need different amounts of nitrogen, phosphorus, and potassium at different stages of growth. For example, nitrogen is essential for leaf growth, while phosphorus is important for root development.

Learn more about NPK Ratio

The best fertilizer for houseplants: Keep your houseplants beautiful

There are many different name-brand fertilizers available on the market. Some of the most popular brands of fertilizer on the market include Miracle-Gro and Schultz, but there are many others.

Each brand has its own unique formula, so it’s important to read the labels carefully to choose the right one for you and the needs of your houseplants.

Related Article: How to care for indoor plants

Miracle-Gro

Miracle-gro is one of the most widely known fertilizers on the market and is synthetic fertilizer.

Miracle-Go has an NPK ratio of 24-8-16. Many people swear by Miracle-Gro and think it’s the best fertilizer for houseplants.

It can be applied to indoor and outdoor plants and is typically used every two weeks.

Miracle-gro is available in both liquid and granular form and can be applied using a watering can.

Miracle-gro is one of the most affordable houseplant fertilizers available and is a good choice for overall general-purpose plant food.

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Osmocote Plus

Osmocote plus is an inorganic fertilizer that is made from minerals or chemicals. Osmocote Plus has a 15-9-12 ratio.

Osmocote is a slow-release fertilizer that provides nutrients for your plants over a period of time, which means you don’t have to fertilize as often.

I love Osmocote fertilizer for both my indoor plants and my outdoor plants and have had great results with it over the years.

Not only is Osmoncote one of the best fertilizers for houseplants, it also super affordable and easy to find. I buy it on amazon.

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Related article: How to get rid of fungus gnats!

Jobe’s Organic Fertilizer Spikes

Jobe’s is an organic fertilizer that is made from natural sources like compost or manure.

Jobes fertilizer spikes for indoor plants are an excellent product to use. I have used them for years, and they really work great.

Overall, I highly recommend jobes fertilizer spikes for indoor plants. They release nutrients slowly over time, which is great for plants that need a steady supply of food.

I love Jobe’s fertilizers because they are organic, renewable, biodegradable, sustainable, and good for the environment.

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Schultz all-purpose plant food

Shultz All-Purpose Plant Food is a water-soluble fertilizer that can be used on all types of houseplants, including potted plants, terrarium plants, and hanging baskets.

The best way to apply the fertilizer is to mix it with water and then apply it to the soil around the base of the plant. For most plants, you should fertilize about once a month.

Schultz is an overall good indoor plant fertilizer. Very much like Miracle-grow.

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Joyful Dirt

Joyful dirt is an all-natural fertilizer made from composted manure. It’s an excellant organic indoor plant food!

It’s an excellent source of nutrients for indoor plants, and it’s easy to use. Simply mix some joyful dirt with water and apply it to your plants’ roots.

You can also add joyful dirt to your potting mix when repotting plants. Joyful dirt is safe for all plants, and it’s a great way to give your plants a boost of nutrients.

If you’re looking for an all-natural fertilizer that’s easy to use and provides excellent nutrition for your plants, you should try Joyful dirt.

Joyful dirt is more expensive than other types of fertilizer, but it is safe for the environment, your plants, and your pets.

I have tried Joyful dirt and do think it’s a great fertilizer; I just feel it’s a tad too expensive for me because I have almost 40 houseplants!

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Fiddle leaf fig fertilizer (3-1-2)

This fiddle fig tree plant food is calcium-fortified, urea-free, and with a ratio of 3-1-2 for healthy roots, stems, and leaves!

I started using this fiddle fig fertilizer after some friends who have the most beautiful fiddle fig plant I had ever seen recommended this food.

Since starting to use this fiddle leaf fig fertilizer, my fiddle figs have started to grow faster and with fewer leaf drops.

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Here are some facts about this fiddle fig food:

  • Fiddle leaf fig plants need specific nutrients for growth, health, and strong root systems. The original Fiddle Leaf Fig Plant Food is specially formulated to provide optimal nutrition with no risk of burning your plant. 
  • ALL-ORGANIC Original Fiddle Leaf Fig Plant Food contains no urea or harmful chemicals that could burn your plant. It is designed to be used every time you water for green and gorgeous growth all year long. 
  • CERTIFIED NON-TOXIC AND TESTED IN INDEPENDENT LAB FOR SAFETY. Don’t be fooled by competitors, our product is certified non-toxic and safe for your plant. Made in the USA by a woman-owned small business. 
  • EASY TO USE WITH NO MIXING OR MESS by diluting 1 teaspoon in 2 cups of water, Fiddle Leaf Fig Plant Food is gentle enough to use every time you water. Each 8 oz bottle contains enough ficus food to last from 6 months to a year, depending on your plant size.

Fish emulsion fertilizer for plants

Fish emulsion is an organic fertilizer made from natural sources like fish waste. It releases nutrients quickly, which is great for plants that need a quick food boost.

Fish emulsion is affordable and easy to find in stores, but it can be smelly and may need to be applied more carefully.

Don’t use fish emulsion fertilizer if you have pets!

A word to the wise! Do not use fish emulsion fertilizer if you have pets! They will dig in your plants and go absolutely crazy! Dogs and cats love to fish!

How to fertilize houseplants naturally

You can fertilize your houseplants naturally by making your own DIY fertilizer at home!

Homemade fertilizer for indoor plants

DIY PLANT FERTILIZER: You can make your own fertilizer at home using coffee grounds, eggshells, and banana peels. Homemade fertilizer is affordable and easy to find, but it can be time-consuming to make.

coffee grounds for houseplants

Coffee grounds for houseplants

I always put the coffee ground in my houseplants!

Coffee grounds are a great source of nitrogen, an essential nutrient for plants. To make fertilizer from coffee grounds, simply add the used grounds to your soil or compost.

Eggshells for houseplants

Eggshells are a great fertilizer for indoor plants!

Eggshells are a great source of calcium, an essential nutrient for plants. To make fertilizer from eggshells, simply add the crushed shells to your soil or compost.

How to make fertilizer from banana peels

Banana peels are a great source of potassium, an essential nutrient for plants. To make fertilizer from banana peels, simply add the peeled bananas to your soil or compost.

Banana peels are a great source of potassium,,, an essential nutrient for indoor plants.

It’s easy to make banana peel fertilizer for your indoor plants and a great way to use all those banana peels that would otherwise go to the landfill.

Steps to making fertilizer form banana peels:

Step one: Cut banana peels into small 1-inch pieces
Step two: Dry banana peel pieces. Lay them directly in the sun, or use an oven on the lowest temperature setting
Step three: Add banana peels to your houseplants! Bury dried banana peels in the soil

When to fertilize your houseplants

It’s important to fertilize your plants regularly to ensure they get the nutrients they need. I recommend applying fertilizer every two weeks during the growing season and once a month during the winter.

Related article: how to care for houseplants

how to fertilize houseplants

How to apply fertilizer to your houseplants

Applying fertilizer is easy! Simply mix the recommended amount of fertilizer with water according to the package directions. Then, use a watering can or spray bottle to apply the mixture.

There you have it! The best fertilizer for houseplants

Ok! There you have it! The best fertilizer for houseplants!

Whether you have a green thumb or not, I hope this article has helped you learn more about plant food and how to take care of your indoor plants.

Do you have a favorite type of fertilizer that wasn’t mentioned in our article? Let us know in the comments below!

Happy gardening!

XO, Christine

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