9 Different Types of Houseplant Fertilizer

Different Types of Houseplant Fertilizer
Photo by vadim kaipov

Houseplants are some of the easiest plants to take care of, and they can add color and life to any home or office space.

While they may not need as much attention as outdoor plants, providing them with proper fertilizer is still necessary. Doing this regularly will keep them healthy and thriving.

However, several different types of houseplant fertilizer work better than others with certain houseplants. The key is knowing which type works best with your unique plant combination.

Fish and Seaweed Blend Fertilizer

This type of houseplant fertilizer is made from blended fish and seaweed. It is an excellent choice for household plants because it is packed with nutrients that can help them grow and thrive. 

Plus, it is relatively easy to find and use. Mix it with water and apply it to your plants according to the instructions on the package.

Water Soluble Flower Fertilizer

Water soluble flower fertilizer is one type of houseplant fertilizer that can be used on houseplants. This fertilizer is easy to use and can be found at most stores selling gardening supplies. 

Water soluble fertilizer is mixed with water and then applied to the plant’s leaves or roots. This type of fertilizer is excellent for plants that are actively growing.

Succulent and Cactus Plant Food

You can use different types of houseplant fertilizer, depending on what they need. You can use a succulent and cactus plant food for succulents and cactus. This type of fertilizer is high in potassium and low in nitrogen, which is perfect for these plants. 

You can also use organic household fertilizer, such as coffee grounds or banana peels. Just be sure to dilute it before using it on your plants.

Jobe’s Plant Food Vegetables & Tomato

Jobe’s Plant Food Vegetables & Tomato is an excellent all-purpose fertilizer used on various houseplants. This fertilizer is made with natural ingredients.

Also, it is safe for use around children and pets. This houseplant fertilizer will help your plants grow healthy and strong.

Worm Castings Soil Builder

Worm castings are a type of fertilizer made from the waste of worms. They’re rich in nutrients and help improve the quality of your soil. This makes them great for use on houseplants, as they can help to keep them healthy and to look their best.

There are a few different ways to use worm castings as fertilizer. You can mix them into your potting soil before planting or top dress your plants with them every few months.

You can also make a worm tea by soaking the castings in water and then using that water to water your plants.

Earth Root Zone Granules Organic Root Feeder

This organic root feeder is made with fish bone, kelp meal, alfalfa meal, soft rock phosphate, and oyster shell. It also contains 25 strains of mycorrhizae to help support a robust root system. 

Dr. Earth Root Zone Granules are OMRI Listed for use in organic production. This fertilizer is easy to use. Just apply it to the base of your plants once a month and water it in.

Slow-Release Fertilizer

One type of houseplant fertilizer you can use is slow-release fertilizer. This type of fertilizer is released slowly over time, so it’s great for plants that need a steady supply of nutrients. 

Slow-release fertilizer is also less likely to burn your plants, so it’s a good choice if you’re new to fertilizing. There are two main types of slow-release fertilizer: granular and liquid.

Acid-loving Plants Fertilizer

This houseplant fertilizer is perfect for plants that love acidic conditions, such as rhododendrons, gardenias, and blueberries. The fertilizer will make the soil more acidic, which will help these plants thrive. 

Acid-loving plant fertilizer is easy to find and relatively inexpensive. This makes it an excellent option for those just starting with houseplants.

Espoma Organic Tomato-tone Dry Plant Food

This houseplant fertilizer is made from all-natural and organic ingredients. It’s safe for use on all types of houseplants. 

Also, it’s a great way to give your plants the necessary nutrients without worrying about synthetic chemicals. This fertilizer is best used on tomatoes, but it can also be used on other types of houseplants.

It is made from all-natural and organic ingredients, including kelp meal, alfalfa meal, bone meal, and oyster shell flour.

This fertilizer will give your plants the nutrients they need to grow healthy and strong. Plus, it is OMRI listed and compliant for use in organic gardening.

How Often Should I Apply Fertilizer to My Houseplants?

Fertilizing your plants is essential to ensure they get the nutrients they need to grow. However, over-fertilizing can be just as harmful as not fertilizing at all. The key is to find a happy medium. Depending on the houseplant fertilizer you use, you will likely need to apply it every two weeks. Fertilizers with a high concentration of nitrogen and phosphorus should be applied. Apply more often because these nutrients break down quickly in the soil. A lower concentration fertilizer like potassium phosphate (K2P) should only be used monthly. In general, you should avoid mixing different types of fertilizers.


In conclusion, there are many different types of houseplant fertilizer. Each type has its own set of benefits and drawbacks. You will need to experiment to find the right fertilizer for your plants. Be sure to read the labels carefully and follow the directions to avoid over- or under-fertilizing your plants.

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