Home Lawn & Garden Best Fertilizers for Indoor Plants [Buying Guide] in 2020

Best Fertilizers for Indoor Plants [Buying Guide] in 2020

by Kellen Greene
Indoor Plant Food | All-purpose House Plant Fertilizer | Liquid Common Houseplant Fertilizers for Potted Planting Soil | by Aquatic Arts
Joyful Dirt Premium Concentrated All Purpose Organic Plant Food and Fertilizer. Easy Use Shaker (2 oz)
EarthPods Premium Indoor Plant Food – Easy Organic Fertilizer Spikes – 100 Count – All Purpose (Great for Indoor Houseplants + Outdoor Container Flower Gardens, Ecofriendly)
Plants for Pets Indoor Plant Food
Joyful Dirt Organic Indoor House Plant Fertilizer
EarthPods Organic Fertilizer Spikes
Indoor Plant Food | All-purpose House Plant Fertilizer | Liquid Common Houseplant Fertilizers for Potted Planting Soil | by Aquatic Arts
Plants for Pets Indoor Plant Food
Joyful Dirt Premium Concentrated All Purpose Organic Plant Food and Fertilizer. Easy Use Shaker (2 oz)
Joyful Dirt Organic Indoor House Plant Fertilizer
EarthPods Premium Indoor Plant Food – Easy Organic Fertilizer Spikes – 100 Count – All Purpose (Great for Indoor Houseplants + Outdoor Container Flower Gardens, Ecofriendly)
EarthPods Organic Fertilizer Spikes

As the world becomes more industrialized, a new trend has emerged of people buying more and more indoor houseplants to keep nature alive and thriving.  However, indoor houseplants require a lot of looking after to make sure they thrive without natural outdoor nutrients.  If you are not so green fingered, you may be wondering how you can keep your plants alive and happy, especially if you have a bad habit of plant neglect. 

The key to keeping your indoor plants alive and thriving is fertilization.  The right fertilizer at the right time will keep your plants looking their best at all times.  This allows all kinds of plants to flourish when they’re indoors so you can enjoy the sights of nature in the comfort of your own home. 

There are many different indoor plant fertilizers, but Surf’n’Buy have found the best all round fertilizers for indoor plants and put together all of the information you need to set a fertilization schedule and make your home look beautiful.  If you are looking to take your fingers from black to green, keep reading.  Surf’n’Buy has all the secrets and all the right products you need to keep your indoor plants blooming wonderful.

Top 3 Fertilizers for Indoor Plants

1. Plants for Pets Indoor Plant Food


Plants for Pets Indoor Plant Food is a liquid fertilizer that promotes healthy growth and stops wilting to give your plant the longest life possible to keep your home looking vibrant and fresh.  The 3-1-2 ratio of nitrogen, phosphorus and potassium helps indoor plants thrive no matter where they are potted, whether it’s in pots, holders or hangers.

Plants for Pets Indoor Plant Food is suitable for a huge range of plants, from Poinsettia to Spider Plants, Peace Lilies to Aloe Vera.  Simply add one teaspoon of fertilizer to two cups of water to fertilize your plants.  With such a small amount needed, you will save money on fertilizers for all plants in your home.

The nitrogen content promotes bright leaves whilst the phosphorus supports healthy root growth to repair damage and grow larger plants.  The added potassium speeds up growth and adds additional nutrients which indoor plants lack from reduced sunlight.  Combined, this unique blend of nutrients allows your plants to look their best with colorful blooms which last longer and bloom more often.


  • This liquid fertilizer is easy to use and promotes healthy growth in a huge range of plants to help indoor plants flourish no matter where they sit or where they are potted.
  • The Plants for Pets Indoor Plant Food is incredibly powerful, providing fertilizer with only one teaspoon of liquid per two cups of water so you save money with each purchase, getting the most out of every bottle.
  • Suitable for a wide range of plants, this indoor plant fertilizer supports the growth of any indoor plant, no matter its origin or nutritional requirements.
  • The unique blend of nutrients help your plants grow faster, healthier, and bloom more often and helps each bloom last longer.  This keeps your plants looking their best all year round.


  • When sitting, the fertilizer can separate and requires adequate shaking or mixing to ensure consistency throughout the product.
  • If you have many indoor plants, you may not get as much value from this product due to the small bottle size.
  • This fertilizer is best for some plants and not others since it is an all round fertilizer rather than a specialized fertilizer for a specific plant.  If your plant does not perk up with use of this fertilizer, another product may be better suited.


If you’re looking for an all purpose fertilizer for a wide range of indoor plants, the Plants for Pets Indoor Plant Food has a unique blend which supports the healthy growth of a huge range of plants.  The liquid form is easy to mix with water so you get more value for your money and makes it incredibly easy to use. The unique blend of nutrients helps your plants to grow faster and thrive all year round to keep your home fresh and your plants looking their best.  Extend the life and bloom of your indoor plants with the Plants for Pets Indoor Plant Food.

2. Joyful Dirt Organic Indoor House Plant Fertilizer


Joyful Dirt Organic Indoor House Plant Fertilizer is completely organic to naturally support the growth and bloom of your plants without damaging chemicals. This fertilizer contains Mycorrhizae and other unique nutrients to help plants resist disease and use less water so they last longer and are lower maintenance.

The highly concentrated blend of nitrogen, phosphate and potassium is an ideal blend for a huge range of plants and provides plenty of support and available nutrients for your plant to utilize.  Suitable for almost all indoor plants, there is no need for plant specific fertilizers because the Joyful Dirt Organic Indoor House Plant Fertilizer will provide everything your plant needs no matter what you grow. Simply sprinkle around the soil of the plant or mix with water so you can apply this fertilizer any way you like.  This fertilizer is small and compact, so it is easy to store, and is also safe for children and pets so it doesn’t cause any hazard.


  • The organic blend of nutrients supports your plants with all natural ingredients so there is no chemical damage, allowing your plants to thrive.
  • The high concentration provides your plant with consistent and easy to use nutrients to support its growth at all times, keeping your plants looking their best.
  • This fertilizer is suitable for a huge range of indoor plants to save you money as you don’t have to buy specific fertilizers for all plants, only those which really need it.
  • The small and compact packaging can be stored anywhere.
  • As it is safe for children and pets, you can have peace of mind with Joyful Dirt Organic Indoor House Plant Fertilizer.
  • With two methods of application, you can provide sustained support by sprinkling the fertilizer or direct application by adding it to water.


  • This is quite a small container and may not be cost effective for those who have a lot of indoor plants.
  • There is no seal on the package which can cause it to spill when first opened, so be careful when using this fertilizer for the first time.
  • Due to the fertilizer being designed for a large range of plants, it can be more effective on some plants than others, so a specific fertilizer may be needed for more difficult plants.


The Joyful Dirt Organic Indoor House Plant Fertilizer is an easy to use, completely organic fertilizer which is perfect for a huge range of plants so that you can support them in their growth and bloom.  The high concentration makes nutrients available to the roots at all times for a sustainable and supported growth.  Easy to use, you can decide whether you want to fertilize the plant with a sprinkle or provide direct fertilization to the roots by mixing it with water.  Small and compact and non-toxic for pets and children, this is the perfect fertilizer for home use as it is safe and portable.  If you are looking for a high quality indoor plant fertilizer, this is one of the best options available.

3. EarthPods Organic Fertilizer Spikes


EarthPods Organic Fertilizer Spikes are one of the easiest plant fertilizers to use in all locations of your plant, whether they are window boxes, planters, baskets, or even hydroponics.  This fertilizer is also suitable for outdoor use, making it one of the most economical options on the market.  Simply place a few pods in the soil depending on the size of the plant, cover with water and let it do what it does best.  This reduces mess from liquids and measurements and they are smell free.

The concentrated organic nutrients stimulate robust root and stem development whilst increasing vibrancy and reducing vulnerability to disease.  The pods break down slowly to provide a consistent nutrient source for all plants.  Simply replace every two to three weeks for perfect application. The container is compact and easy to store as well as being made with an eco friendly packaging so it is entirely recyclable once you’re finished with the fertilizer.  Made to be child and pet friendly, this fertilizer poses no hazard and is perfect for home use.


  • Suitable for all plants in all locations, this is an all round fertilizer which provides powerful support to your plants.
  • EarthPods Organic Fertilizer Spikes are also suitable for outdoor use so there is no need for numerous different fertilizers for different purposes.
  • The pod form keeps mess to a minimum and is odorless, making this fertilizer much more pleasant to work with.
  • The concentrated formula gives your plant everything it needs at all times of growth for a stronger, more vibrant indoor plant.
  • The slow release design provides a steady and reliable nutrient source for your plants.
  • The packaging is 100% recyclable and easy to store.
  • Safe for children and pets, this fertilizer is hazard free.


  • The pod design does not give direct fertilization to the stem or roots, so you need to keep a stricter fertilization schedule to ensure consistent provision of nutrients.
  • If placed too close to the base of the plant, this fertilizer can still burn the roots, so be careful when applying.
  • There are not many capsules in a packet which makes this a little more of an expensive option than other fertilizers.
  • This fertilizer is not plant specific and may work better on some plants than others.


The EarthPods Organic Fertilizer Spikes is one of the most eco friendly, organic fertilizers on the market for indoor plants.  This fertilizer is quick to get to work and is incredibly easy to use.  Simply place a few pods in the soil and let the fertilizer provide sustained nutrients to your plants for best use.  These fertilizer pods can be used both in and outdoors and with almost any plant, so there is no need to buy many different fertilizers for many different plants. These pods are also odorless and mess free for clean and convenient application. Safe for children and pets and compact and portable, this is the perfect fertilizer option for home use.

Types of Houseplant Fertilizer

Fertilizers come in a range of different forms.  The most common are liquid, sticks or pods, tablets and granules.  Liquids and slow releasing tablets or granules are best for indoor plants as they provide a more sustained and reliable nutrient source.  Pods are great, but they break down at different rates depending on their placement so you have  little control over the fertilization of your plant.   Each fertilizer has a different purpose and fills a different need so keep reading to find out more.

Liquid Fertilizers

Liquid fertilizers are mixed with water to provide your plant with food and hydration. The rate at which your plant requires fertilizing will depend on its species.  The more tropical your plant or the larger its flower and bloom, the more your plant will require feeding, so make sure to check the guidelines of the specific plant you are fertilizing.  Liquid fertilizer is a great option to provide your plant with immediate and direct nutrition because it gets straight to the root to make these nutrients available to the plant. 

They are also easy to use in a range of different potting areas and can be paused when the plant is dormant.  The main drawback to these fertilizers is that you are responsible for sustainable provision of nutrients and you need to remember to use them every time or every other time.  The best way to make sure you remember is to create a feeding schedule for your plants.  If you are looking for a liquid fertilizer, the Plants for Pets Indoor Plant Food is a great option which is perfect for home use and a large range of plants.

Granular Fertilizers

Granular fertilizers are dry pellets which are mixed into the soil and activated when the plant is watered.  These fertilizers can be used both in and outdoors to make them more versatile.  However, their drawback is that they activate very quickly and don’t provide a sustainable food source to the plant.  You therefore need to remember to fertilize your plant regularly when using granules to make sure it gets everything it needs. 

Another drawback is that the granules are not readily available to the plant from the point of application, they require water to transport the fertilizer to the roots.  If you are looking for a granule option, the Joyful Dirt Organic Indoor House Plant Fertilizer is a great option as it can also be added to water for direct application and can be sprinkled as a granule to provide sustainable nutrients.  This means you can get your plant fertilized immediately then provide it with more fertilizer so that there is a constant source of food.

Slow Release Fertilizers

Slow release fertilizers are a firm favorite in the gardening world because they are low maintenance and very easy to use.  These fertilizers come in pod form and are coated in a shell which breaks down slowly to provide consistent nutrients over time.  Each pellet has a different rate of release, so make sure to check this when you purchase so that you get the best option for your plants needs. 

These pods are also odorless and don’t require mixing, so they are much more convenient for the busy gardener.  The main downside is that they are more expensive due to the way they are designed, however they tend to last much longer than other fertilizer options.  If this is the kind of fertilizer you are looking for, the EarthPods Organic Fertilizer Spikes are an eco friendly and sustainable fertilizer source which is perfect for home use both in and outdoors.

When You Should Feed Your Houseplants

Your houseplants will wilt and die if they don’t get what they need, but there are a number of signs you should be aware of so that you know when your plants need a little extra support.  Fertilization is a little trickier to know when it is needed, so we will help you with this, too.


If your plant is starting to wilt then it needs water.  However, overwatering can be just as big of a risk if you’re not careful.  The best way to avoid these issues is to have a consistent watering schedule depending on the needs of your plant.  You can also buy a water dispenser which provides consistent a water source at all times, which is great for plants which are prone to drying out.

Pale, Lanky Leaves

If your plants are looking a little pale, they may not be getting enough sunlight.  Try moving your plant closer to a window without putting it in direct light.  This will allow your plant to get the vitamins it needs from the sun without being burned by the heat.

Crispy Leaves

If there is not enough humidity in the room, your plant may turn crispy.  There are some plants which require more humidity than others, so if your plant is showing signs of a lack of humidity, it may be more suited to a bathroom where there is a source of steam.


If there is too much humidity in the room, your plant may begin to rot.  This can be dangerous as the damage that rot can do to a plant can happen very quickly.  It may require you to cut off the rotten parts and move the plant to a dryer part of the house.

So, when do I fertilize?

It can be difficult to know when exactly your plant needs fertilizer because there are no clear signs.  The best way to know when to feed your plants is to make a schedule according to the plant’s needs.  Each different species of plant will need different things, so to make a schedule it is a good idea to do some research on when your plant needs food and how often.

The N-P-K Ratio

When looking at different kinds of fertilizer you may have seen a number that looks something like this: 10-5-10.  This is known as the N-P-K ration and it represents the information regarding the nutrient percentages in the fertilizer.  The number above will represent a fertilizer with 10% nitrogen, 5% phosphorus and 10% potassium.

N represents the nitrogen percentage.  Nitrogen is important to support healthy, vibrant leaves and is usually the higher number in the ratio.  P is the phosphorus percentage.  Phosphorus helps the plant to grow flowers as it develops, so is important in the early growing phase so that a larger bloom can take place when the plant flowers.  K is the potassium percentage.  Potassium helps to support the plant grow fruits.  This is less important with indoor plants where fruits are not produced, but is vital if you are looking for a fertilizer for fruit or vegetable bearing plants.

Fertilizers will have at least one of these nutrients but not necessarily all.  If you are not looking to produce fruit, the potassium level will most likely be 0.  To get the best fertilizer for your plants, do a little research into the best ratio for the plant you are buying for and at which stage of growth it is in to make sure you get the right option.

Houseplant Fertilizer Schedule

The key to a successful grow is to fertilize at the right times.  Different plants will need different levels of fertilization throughout the year depending on the growing season and when the plants are in bloom.  We at Surf’n’Buy have created a basic indoor houseplant fertilizer schedule to help you create one specifically designed for your houseplants.

Spring Houseplant Fertilizing Schedule

For spring houseplants, you should start fertilizing around eight weeks before the last expected spring frost.  If you don’t know when this is, you can look it up on the internet for an estimated date, then simply work back from there.  The first three fertilizer applications should be made at about half of the recommended strength on the container because they aren’t in the growth stages just yet and therefore don’t require a full dose.  Simply fertilize at the recommended time periods on the container, but at half strength for the first three before using a full dose at application number four.

Summer Houseplant Fertilizing Schedule

As summer starts to role around, your plants will need more regular fertilization.  Follow the instructions on your container to the letter at this point, as the type of fertilizer you are using will make a big difference.  Liquid fertilizers will need much more frequent application than granules or pods, so make sure to jot down when you fertilize and when you need to again.  These instructions should be followed regardless of whether you move the plants outdoors for the summer because they are still in the blooming stages and need constant support to be able to handle changes in temperature and exposure to the elements.

Fall Houseplant Fertilizing Schedule

At around eight weeks before the first expected frost of fall, begin to slow your fertilization applications.  Start by using half doses and then begin to double the amount of time between applications to get your plants ready for winter. 

Winter Houseplant Fertilizing Schedule

Your plants aren’t in an active growth phase in winder so you do not need to fertilize them at all.  Doing so won’t do the plant any good and can actually cause it damage as you may burn the leaves.  This happens because the plant is not actively taking in any of the nutrients and their presence in the soil can cause the plant damage.


Indoor plants are a joy to behold.  They can really tie together a room and bring a peaceful and happy atmosphere to the home.  However, it is important to keep them healthy and happy so that they look their best and so does your home.  Fertilizing your plants provides them with everything they need for a successful growth and keeps your plants looking their best.

Depending on the needs of your plant, as well as your own schedule, you might require different kinds of fertilizer.  That is why Surf’n’Buy felt it was important to bring you a wide range of fertilizer types with the Plants for Pets Indoor Plant Food, Joyful Dirt Organic Indoor House Plant Fertilizer and EarthPods Organic Fertilizer Spikes.  These fertilizers offer different levels of fertilizer as well as allowing you to customize your fertilization schedule to the needs of your plants and your availability to apply it.  These fertilizers are all powerful in their own right, but we are confident that one of them will suit each plant owner best. 

We hope that we have helped you find the right fertilizer for you and your plants so that you can keep growing and your fingers stay green.

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