6 Best Fertilizer for Geraniums in 2022 – Reviews and Guide

Geraniums are among one of the most popular flowers – they have vibrant colors and smell fantastical.

These delicate flowers can bloom during the entire year if you take proper care of them.

With the help of the right fertilizer, you will have a garden full of healthy geraniums. Here you can read about the six choices for the most popular fertilizer for geraniums and choose the one that suits you the best.

Also, there are a few tips and tricks for taking care of these stunning flowers.

Best Fertilizer for Geraniums


Here is the list of some of the best fertilizers for geraniums currently on the market!

1. Miracle-Gro Continuous Release

Manufacturer’s specs, features, and details:

If you want the fertilizer that will last you for an entire season, definitely give this one a shot!

The geraniums will grow bigger leaves with even brighter colors and your garden will look astonishing.

This fertilizer contains natural ingredients – one of the biggest advantages compared to others. These ingredients are broken down by microbes into nutrients the plant needs the most.

It also promotes the development of the roots which allows the plant to absorb more water. Of course, your garden will still need regular watering, this fertilizer is just a boost each plant needs.

Once you’ve added the fertilizer, mix it into the soil. After about three-months, add the same amount again and watch your garden blossom!

This Miracle-Gro fertilizer can be used on geraniums but also roses and many other flowers as well, allowing you to cover the entire garden with just one bottle!

Pros
  • Versatile use, suitable for different types of plants
  • Promotes the root’s growth
  • Brighter and bigger petals
  • Doesn’t require frequent re-applying
Cons
  • If not mixed into the soil, it won’t be absorbed

Bottom Line:

If you have a dying plant, definitely try this fertilizer! It has revived many damaged plants, making their petals bigger and vibrant.

Also, it will last you for a few months and you can use it for other plants besides geraniums. You won’t regret a single penny!

2. ALGOplus Geranium Liquid Fertilizer

Manufacturer’s specs, features, and details:

This fertilizer has a mixture of elements your geraniums need to blossom! It contains the right ratio of nitrogen, potassium and phosphorus as well as five trace elements these plants require to properly grow.

Also, there aren’t any harmful ingredients such as carbonate or chlorides.

ALGOplus has created a fertilizer that is completely soluble in water, without any odors or unnatural colors. With regular watering and this fertilizer as a boost, your geraniums will blossom.

This fertilizer targets the roots – the part of the plant responsible for absorbing water and other nutrients. It promotes the growth of the root and proper development, making it bigger and allowing it to absorb all of the necessary supplements.

The result is geraniums with vibrant petals!

Pros
  • It can be used on other plants, besides geraniums
  • Liquid fertilizer that can penetrate the soil
  • Great ratio of potassium, nitrogen and phosphorus
  • Non-toxic and odorless
Cons
  • Pricier than other fertilizers

Bottom Line

If you were looking for a fertilizer that will make your organic garden blossom, this is a great choice!

It has all of the elements your geraniums need to blossom. Also, it is non-toxic and eco-friendly, without any unpleasant smells or coloring.

3. Miracle-Gro All Purpose Food

Manufacturer’s specs, features, and details:

Another Miracle-Gro fertilizer that will amaze you!

Your geraniums need enough sunlight, water, and proper nutrients to grow and blossom. This fertilizer is making sure they are getting all of the required supplements.

It can be dissolved in water or applied directly without any unwanted effects. For the best results, make sure to reapply at least every two weeks.

This fertilizer can be used on different types of plants – geraniums, roses, fruits, vegetables, or herbs. Big packing will last you an entire season and amazing ingredients will result in the biggest leaves and brighter flowers.

Pros
  • Easy to use
  • Repairs damaged plants
  • Multipurpose
  • No burns if used directly
Cons
  • It may attract unwanted insects

Main Features

  • It instantly feeds to develop more extensive and more beautiful plants than unfed plants because it is full of necessary nutrients.
  • Use a Miracle-Gro Garden Feeder or any other watering can.
  • For all types of flowers, vegetables, trees, bushes, and houseplants.
  • When used according to the instructions, this product is entirely safe for all plants.
  • Ideal for all kinds of plants, whether they’re indoor or outdoor.
  • Use as advised, and you’re guaranteed not to burn any plants.

Bottom Line

If you are looking for an effective fertilizer that you can use on other plants besides geraniums, try this one!

It has a powerful formula that is great for growing plants and reviving unfed plants.

4. Osmocote Smart-Release Plant Food

Manufacturer’s specs, features, and details:

Osmocote’s fertilizer contains eleven powerful nutrients every plant needs! You will have a garden full of healthy geraniums with big leaves and vibrant petals.

This great fertilizer can be used for up to six months and the results are amazing. It is suitable not only for geraniums but other flowers as well.

Also, you can use it in all conditions – if you are growing your plants inside, this is a great way to deliver all of the needed nutrients.

It can be used directly just make sure to mix it into soil! Water is dissolving the coating and allowing nutrients to leave the resin. The amount of released supplements is determined by temperature – in warmer weather, more supplements are delivered.

Pros
  • More nutrients delivered in growing periods
  • Soluble in water or used directly
  • Suitable for different growing conditions
  • Suitable for different plants
Cons
  • Leaves plastic balls in the soil

Main Features

  • Eleven important nutrients are included in this formula.
  • It’s effective with a wide range of plant species and cultivation circumstances.
  • It provides six months’ worth of support for the facility.
  • When utilized correctly, the plant will not burn.

Bottom Line

This is one of the best smart-release fertilizers available.

You can use it for different types of plants and even during the winter for your indoor plants. It is worth every penny!

5. J R Peters Jacks Classic Fertilizer

Manufacturer’s specs, features, and details:

Your geraniums will magnificent with the help of this Jack’s Classic fertilizer.

It has a powerful ratio of most needed nutrients and promotes the growth of the flowers.

Also, this amazing formula is great for fruits, vegetables and other types of plants!

Roots are bigger, penetrating deeper and absorbing all of the required supplements which results in flowers with brighter colors and bigger leaves.

This fertilizer can be used for indoor and outdoor plants which makes it suitable for all growing conditions.

Pros
  • Can be used for geraniums and other flowers and plants
  • 1:3:2 ratio of nutrients with micronutrients
  • Suitable for indoor and outdoor plants
  • Results in brighter and bigger flowers
Cons
  • It may cause fungi if not applied properly

Bottom Line

This fertilizer has the best ratio of the most important nutrients. Thanks to the great formula you can expect bright petals, green leaves and healthy geraniums!

Also, you can use it to feed other plants as well – fruits, vegetables, roses and others.

6. Jobe’s Plants Fertilizer Spikes

Manufacturer’s specs, features, and details:

If you want a garden filled with healthy flowers, all of the supplements should be delivered directly to the roots.

Jobe’s Fertilizer Spikes is doing just that! It feeds the roots and the result is a healthy plant with vibrant colors.

It has a slow-release, feeding the plant for up to eight weeks. Frequent reapplying isn’t necessary and just one bag can last you for a few months and feed the entire garden.

Also, spikes are making sure the fertilizer doesn’t disintegrate and doesn’t create any mess.

Pros
  • Easy to use
  • Amazing formula suitable for different plants
  • Feeding the plant for eight-weeks
  • Directly feeding the roots
Cons
  • They may be difficult to insert

Main Features

  • Insertion of fertilizer into the soil prevents runoff of waste.
  • Nutrients are released slowly.
  • There are formats available with variable NPK.
  • No mixing is required, making it quick to use.
  • An incredible plant-friendly recipe.
  • For eight weeks, you must feed the plant.
  • Feeding the roots directly.

Bottom Line

This fertilizer is making sure your plants get what they need and the results are amazing!

One bag is enough to cover the entire garden and it will last you an entire season. You can even use it for the potted plants.

Thanks to the slow-release, it is saving your time.

Additional Geranium Fertilizer Recommendations

Dr. Earth GL61100518430 Fertilizer

Dr. Earth GL61100518430 Fertilizer

This excellent fertilizer has a nutrient composition of 3-9-4, which is easy for growing plants. Still, the high phosphorus level is what really makes this product a bud and bloom enhancer. After using this fertilizer, your geranium plants’ leaves will be grassier and more glossy. Their flowers will have a deeper shade of pink.

Fishbones, feather meal, alfalfa, and soft rock phosphate, as well as potassium sulfate from mined sources, are all included in this mix. This blend is particularly beneficial to many kinds of plants. They’re pretty simple to dissolve and will provide plants with nutrition for approximately a year.

Without adding GMOs or other potentially dangerous chemicals, the nutrients and minerals in this fertilizer are taken from food-grade sources. Because of this, you may shop with confidence, knowing that you won’t harm the soil or any food plants in the process.

One of the best things about this Innova Organic Lawn Fertilizer is how easy and straightforward it is to use. To apply the Fertilizer, stick with the tried-and-true techniques. To fertilize 1000 square feet of lawn, you just need 3.5 to 11 pounds of Fertilizer from a 40-pound bag.

Main Features

  • This product is free of genetically modified organisms (GMOs).
  • Water-soluble.
  • Only food-grade components are used in the production of this dish.
  • Online shopping allows you to save time and money by eliminating the need to wait for a delivery.
  • There is a user handbook included.
  • When used correctly, this won’t harm your plants.

The things that might be bothering you: Smell is entirely wrong.

Miracle-Gro Liquid All Purpose Plant Food

Miracle-Gro Liquid All Purpose Plant Food

Various types of plants can need different Miracle-Gro fertilizers. Even though Miracle-Gro Liquid Fertilizer is designed explicitly for geraniums, it is a popular choice among gardeners for feeding their plants. You can apply it to various plants, including flowers, vegetables, trees, shrubs, and even indoor houseplants.

Because the nutrients are liquid, the roots may more easily absorb them and see effects right away.

Adding food to your plants is as simple as watering them, making feeding your plants a breeze. Use a watering can to mix Miracle-Gro Liquid All Purpose Plant Food and saturate the soil surrounding each plant well.

This 7-3-5 NPK fertilizer is a concentrated fertilizer, so a little goes a long way. It’s an excellent choice for saving money also. These fertilizers are popular among gardeners due to their quick-dissolving nature and ease of application. For massive, elegant Miracle-Gro results, simply combine the product with water and feed plants every two weeks.

Main Features

  • Liquid solution allows for more immediate observation of plant progress.
  • There isn’t any smell.
  • Excellent for both indoor and outdoor plants.
  • It can be used on various plants, including trees, vegetables, shrubs, and houseplants.

The things that might be bothering you: When used on children and pets, this substance can be harmful.

Miracle-Gro Blooming Houseplant Food

Miracle-Gro Blooming Houseplant Food

You’ll need a few tools and goods to start indoor gardening, and one of those is a moderate but efficient fertilizer. Orchids, African violets, and other beautiful flowering plants require a lot of attention because they are delicate.

Compared to unfertilized plants, these plants produce considerably more blooms and robust foliage thanks to a unique combination of Miracle-Gro Blooming Houseplant critical nutrients and a more significant phosphorus concentration. Flowers and leaves have a higher sheen, which draws attention.

The NPK is 0.5-1-0.5, and with that more significant amount of one nutrient, the plant will progressively flower. The Miracle-Gro Fertilizer comes with an in-built pump. You can use it to spray the liquid directly onto plants or mix the solution with water.

And the most significant thing is you need only one application each week of this fertilizer to supply sufficient nutrients for your blooms. So if you already have a healthy plant but only want to give it the nutrients to retain its green leaves, then one pump per few weeks is more than plenty.

Main Features

  • Instant outcomes with African violets that aren’t performing well.
  • Ideal for indoor flowering plants such as Christmas cacti and spider plants.
  • Perfect for indoor flowering plants.
  • An additional portion of P.
  • It’s pretty simple to use.
  • Perfect for those who have never used a car before.
  • Flowers and foliage look their best when they’re covered in this.
  • You can use this method on any type of plant, indoors or out.

The things that might bother you: Pumps may require washing every now and then to keep them clear of gunk.

Jobe’s Organics All-Purpose Fertilizer

Jobe’s Organics All-Purpose Fertilizer

This Jobe’s Organic product, made from feather meal and bone meal, also contains various helpful bacteria and fungus that help nutrients get to the plants more effectively.

Pre-measured Jobe’s Organics All-Purpose Fertilizer Spikes contain organic feather meal, bone meal, and sulfate of potash to nourish plants from the roots up. As a result, it aids the tree’s resistance to disease and insects.

In terms of preserving the plant, this blend of microorganisms also enhances soil conditions. It protects the soil against anything that can impair its efficiencies, such as insects or illnesses. In this manner, the plant and the earth are nourishing for more significant and better growth.

It is a beautiful way to start! This is a fast-acting fertilizer that also contributes to enhancing sol conditions in the long run. The most frequent conclusion seems to be that even though these are high-quality organic spikes, they don’t cost very much and give you a beneficial solution for supporting your flowers and plants.

Main Features

  • Compost can be used on various plants, including vegetables, flowers, trees, and fruits.
  • It is a type of fertilizer in the form of granules.
  • The exclusive Biozome contains the microbe “archaea.”
  • Fertilizer that works quickly and breaks down the material quickly to speed up the outcomes.
  • While the plants are growing, it aids in their resistance to pests, diseases, and dry conditions.

The things that might be bothering you: It doesn’t smell good.

BioAdvanced 701710 8-11-5 Fertilizer

BioAdvanced 701710 8-11-5 Fertilizer

Advanced is that you can apply it simply once in spring or early fall to notice results. The slow-release 25 percent granules mix feeds your lawn for weeks while killing crabgrass, dandelions, and other grassy weeds.

This weed & feed is developed to kill broadleaf and grassy weeds, including dandelion, clover, chickweed, and dollarweed. It also keeps them from growing back for at least six months.

This recipe is a 50 percent slow-release kind. Due to the type, you do not have to apply it often to get effects. It comes in the shape of granules, so it is easy to load up into a broadcast spreader and put out in under an hour.

Just be sure to use the product while the weeds are tiny and actively developing in the spring and fall, with temperatures ranging from 50 to 90 degrees Fahrenheit. The product should be administered.

All-in-One Weed & Feed is a weed and feed product explicitly intended for Northern Hemisphere lawns, and it’s safe to use on cool-climate lawns.

These spikes also kill and prevent other insects, including Aphids, Leafhoppers, Mealybugs, Plant Bugs, Scales, and Thrips, which are specified. Your potted plant will be safeguarded for up to two months with just a press of the spike into the soil. It’s never been easier to grow gorgeous plants than it is right now.

Main Features

  • Dryness resistance and optimal nutrient absorption are both achieved with Micro Feed Technology.
  • Use with confidence on cold-climate grasses because it’s safe.
  • Kills dandelions and other problematic weeds with ease.
  • Fertilization with the time-delayed release.
  • After only one month of use, noticeable benefits might be expected.

The things that might be bothering you: Not suitable for all types of turf.

Fertilome Geranium Hanging Basket and Pansy Plant Food

Fertilome Geranium Hanging Basket and Pansy Plant Food

Plant food fertilizer by Fertilome is a potent mix that promotes larger flowers and deep green foliage development, among other things. In addition, because of its balanced NPK ratio, your plants will receive all the nutrients they require to thrive.

In addition to being rich in phosphorus, this fertilizer also helps plants develop deep roots, which results in more flowers and fruit. Because of the high concentration of minerals in this product, your geraniums will have muscular bodies, solid roots, and lusher foliage.

Because it provides water to your plants, you’ll see a difference right away in your geraniums. The product is highly concentrated, so a little goes a long way when using 2 tablespoons per gallon and once every 10 to 14 days. 

Most importantly, we ensure that the ground has a high level of wetness before you use it. To get the best results, dilute the nutrition and use it regularly.

Main Features

  • Because it’s so concentrated, one tub will go a long way.
  • The fact that it’s water-soluble means that the nutrients it makes available are more potent.
  • Better and more prominent flowers.
  • Includes a measuring scoop for precise measurements.
  • Promotes strong, strong roots.

The things that might be bothering you: If the suggested application method is not followed, the plant could be damaged or destroyed.

Which Fertilizer is the Best for Geraniums

Geraniums have vivid petals in different colors: red, orange and purple. If you want your geraniums to develop into bright flowers it is essential to find the right fertilizer.

The best fertilizers are the ones that are directly feeding the roots and enriching the soil with various nutrients.

It should contain many potassium, nitrogen, phosphorus, magnesium and other essential elements.

If you have a large garden, you can use an all-purpose fertilizer. These usually have the same amount of nitrogen, potassium and phosphorus.

Your indoor geraniums are easier to take care of – the good potting mix is usually enough for their proper growth.

Also, it is important to mix the fertilizer into the soil – placing it only on the top layer of soil won’t have any results. Remember, roots are absorbing these supplements and it is important to mix the fertilizer a few inches into the soil.

All of the above-mentioned criteria are usually met by liquid fertilizers. Most of them have a great ratio of said nutrients and usually, they are soluble in water.

Once you dissolve them in water, just water the plants close to the ground.

Also, many liquid fertilizers can be used directly. Because of their structure, they are easily absorbed by soil and supplements are quickly delivered to the soil.

Our recommendation for a good liquid fertilizer is ALGOplus liquid fertilizer. It can be used in all growing conditions and on different types of plants. Even though you will spend a few more bucks, the outcome is stunning and it is worth every penny!

How often Geraniums Require Fertilizing?


Fertilize Geraniums

These flowers require your attention! Of course, with the right choice of fertilizer, you won’t have to spend as much time in the garden.

Geraniums require more nutrients the more they grow. Fully developed geraniums should be fertilized once a month.

If you choose the slow-release fertilizer, you can skip these monthly fertilizations. These are truly time-savers!

Also, there are numerous smart fertilizers on the market. These release a different amount of supplements based on the temperature.

Summer and spring, when temperatures are higher, more nutrients are released and you will have to reapply the fertilizer more frequently. In contrast, in winter, the growth of the plant is slower and it won’t need as much fertilizer.

In the end, you should always follow the instructions on the bag. By following the instructions, great results are guaranteed.

How to Fertilize Geraniums?


These flowers are easy to care for – that is probably why many gardeners love geraniums!

However, even low-maintenance plants require time and proper care.

Geraniums can properly grow with just good soil. Because they need regular watering, the soil should hold water. Also, it should be already rich in nutrients.

Adding fertilizer can enrich the soil even more and deliver even better results.

For geraniums, the best fertilizers are liquid ones. These should contain the essential elements and be soluble in water.

Also, always go for organic fertilizers and the ones that won’t cause any damage if applied directly.

Another type is dry fertilizers and these should also be soluble in water.

Dry fertilizers have to be properly mixed into the soil. They usually contain a 10:10:10 ratio of supplements and by mixing it into the soil you are allowing the roots to reach them.

The problem that may occur is over-fertilizing. This can be avoided by choosing one of the slow-release fertilizers.

Fertilizer spikes can solve the problem of over-fertilizing also!

In the end, the amount of nutrients and their ratio is the most important feature. Before you decide to buy one of the fertilizers, test the soil and determine which supplement it lacks the most.

Additional Geranium Fertilizer FAQs:

  • Question: When should you fertilize geraniums?

Answer: At the time of planting, add a slow-release fertilizer to the soil in planting beds and pots. Apply a second coat by the directions on the label. Geraniums are commonly fed with a liquid fertilizer every 14 to 20 days, beginning four weeks after planting.

  • Question: Do geraniums like coffee grounds?

Answer: They prefer the taste of the coffee grounds. Simply keep a few of your used coffee grounds, sprinkle them on top of the soil, and then water your plant as usual. Geraniums and Peace Lily plants, in particular, are coffee-crazy.

  • Question: How do I make my geranium bushy?

Answer: A geranium needs to be clipped firmly at least once a year to keep it compact and bushy and to avoid it becoming lanky. The more often you prune your geranium, the better it will preserve its attractive form.

  • Question: Is Miracle Grow a good fertilizer for geraniums?

Answer: When you seek a simple remedy that may be used straight on your plants, you’re welcome to have Miracle-Gro Shake N Feed. This is an easy-to-use 12-4-8 NPK fertilizer that can feed up to three months of your geraniums.

  • Question: Do geraniums like coffee grounds?

Answer: Save your coffee pot and sprinkle it into the soil and drink it as usual. Water your plant. Geraniums adore coffee, and Peace Lily plants enjoy this in especially.

Final Word

Geraniums are one of the most stunning flowers and are easy to take care of.

Hopefully, this article has answered all of your questions and helped you with choosing the right fertilizer for your garden.