Best Fertilizer for Geraniums (9 Best of Them)

As an Amazon Associate I earn from qualifying purchases. Without Any Extra Cost to You!

Geraniums are great houseplants since they can be kept indoors all year round, but they also do well in the outdoors. These plants produce gorgeous tiny flowers in a wide range of colors and sizes, and the most popular are shades of purple, orange, red, and pink.

When the buds form, these geraniums require a lot of food because they’re heavy feeders. Geraniums growing indoors and out require varying levels of fertilizer.

Geraniums can usually survive without fertilizer, but the fertilizer they require strengthens their roots and helps them produce more gorgeous flowers.

So, let’s start with the question: What is the proper fertilization of the Geraniums plant?

After potting, do not apply fertilizers; instead, let them live with only for some week to establish themselves. On the other side, you must remember that indoor geraniums need a different quantity of fertilizer than outdoor geraniums. 

Fertilize your indoor geraniums minimal amount of fertilizer at least once every peer for 2 weeks. Outdoor geraniums benefit the most from slow-release fertilizers to preserve a healthy supply of nutrients for your plants. 

During the busy months of growth, significantly warmer temperatures, you need to fertilize your plants every 2 weeks. In the winter, you can fertilize less frequently or not because geraniums go into there for their natural dormant stage.


Now, my friend, we are just getting started.  We will show you some of the best and suitable fertilizers to help your geranium get more healthy. 

Here are The 9 Best Fertilizer for Geraniums

We have listed the top best products that are available on the market. You can easily choose the best product from the list at a glance.

 So go through the list, and you’ll find the information in detail in this article.

Best fertilizer for geraniums

PreviewProductsKey FeaturesCheck Price
Miracle-Gro Water Soluble All Purpose Plant Food, 10 lbs.Miracle-Gro Water Soluble All Purpose Plant Food, 10 lbs.
  • Product Dimensions: 4.5 x 9.5 x 12.5 inches
  • Item Weight: 10 pounds
  • Item model number: 1001193
  • Coverage Area: approximately 600 sq. ft.
  • Recommended plants: flowers, vegetables, trees, shrubs, and houseplants
Check Price
Osmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lbsOsmocote Smart-Release Plant Food Plus Outdoor & Indoor, 8 lbs
  • Product Dimensions: 4.2 x 7 x 13.5 inches
  • Item Weight: 8.1 Pounds
  • Target Species: All plant varieties
  • Item model number: 274850
  • Nutrients amount: 11 essential nutrients
Check Price
Dr. Earth GL61100518430 Fertilizer & Soil 707P Organic 8 Bud & Bloom Fertilizer in Poly Bag, 4-Pound, 4 lb, NaturalDr. Earth GL61100518430 Fertilizer & Soil 707P Organic 8 Bud & Bloom Fertilizer in Poly Bag, 4-Pound, 4 lb, Natural
  • Product Dimensions: 3 x 8 x 10 inches
  • Item Weight: 4.1 pounds
  • Item model number: GL61100518430
  • Made: 100% organic and natural ingredients
  • Feed: bulbs, tubers, corms, and rhizomes
Check Price
  • Item Weight: 32 Ounces
  • Item Form: Liquid
  • Item model number: 1001502
  • Recommended plants: flowers, vegetables, trees, shrubs, and houseplants
  • Fertilizing process: By watering
Miracle-Gro Blooming Houseplant Food, 8 oz., Plant Food Feeds All Flowering Houseplants Instantly, Including African Violets, 2 PackMiracle-Gro Blooming Houseplant Food, 8 oz., Plant Food Feeds All Flowering Houseplants Instantly, Including African Violets, 2 Pack
  • Product Dimensions: 4 x 5 x 18 inches
  • Item Weight: 8 ounces
  • Item model number: VB300524
  • Recommended Plants: flowering plants, including African Violets
  • Fertilizing process: Directly to the soil or by watering
Check Price
Jobe’s Organics All Purpose Fertilizer Spikes, 4-4-4 Organic Time Release Fertilizer for All Plants, 50 Spikes per PackageJobe’s Organics All Purpose Fertilizer Spikes, 4-4-4 Organic Time Release Fertilizer for All Plants, 50 Spikes per Package
  • Product Dimensions: 6 x 2 x 9 inches
  • Item Weight: 10.1 ounces
  • Item model number: 06528
  • Using method: With a spike
Check Price
BioAdvanced 701710 8-11-5 Fertilizer with Imidacloprid Plant Food Plus Insect Control Spikes, 10BioAdvanced 701710 8-11-5 Fertilizer with Imidacloprid Plant Food Plus Insect Control Spikes, 10
  • Product Dimensions: 6 x 0.4 x 9.75 inches
  • Item Weight: 1.92 ounces
  • Item model number: 701710
  • Kills: Aphids, Leafhoppers, Mealybugs, Plant bugs, Scales, Thrips, and Whiteflies
  • Recommended Plants: roses, palms, ficus, houseplants, hibiscus, flowers, vines
Check Price
Voluntary Purchasing Group 10721 Fertilome Geranium Hanging Basket and Pansy Plant Food, 1.5-PoundVoluntary Purchasing Group 10721 Fertilome Geranium Hanging Basket and Pansy Plant Food, 1.5-Pound
  • Product Dimensions: ‎ 3.7 x 3.7 x 6.7 inches; 1.5 Pounds
  • Item model number: ‎ 10721
  • Recommended Plants: geraniums, hanging baskets, pansies, patio plants, and ornamentals
  • What to use for: used as a soil drench.
Check Price
Jobe's Hanging Baskets and Potted Plants Fertilizer Spikes, 18 SpikesJobe's Hanging Baskets and Potted Plants Fertilizer Spikes, 18 Spikes
  • Product Dimensions: 1 x 1 x 1 inches
  • Item Weight: 4 ounces
  • Item model number: 06105
Check Price

1. Miracle-Gro Water Soluble All Purpose Plant FoodBest fertilizer for geraniums

Miracle-Gro Water Soluble You can use All Purpose Plant Food on any type of plant or flower. When used according to the instructions, it will not cause any damage if appropriately utilized.

It can be used with the Miracle-Gro Garden Feeder or with any other watering can. Your plants will be considerably larger than they would be if they weren’t fed. Feed once every one to two weeks for optimal results.

Plants need nutrients to grow and thrive, and fertilizers provide those needed. They can be categorized as organic or chemical fertilizers. Mix the plant food in your watering can after filling it with water. Soak the plants’ roots if you want the most vibrant results. For details on the coverage area, see the directions on the label.

Use on all types of plants, including flowers, vegetables, houseplants, roses, and all kinds of trees and shrubs. When the plants are actively growing, feed them every 7-14 days for optimal results. Maintaining good plant health is key to producing lots of new blooms and healthy foliage, and a dark green color on your flowers and plants.

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.

The things that might be bothering you: Because it doesn’t dissolve very well, you’ll need to mix it thoroughly before using it in a large commercial garden.


2. Osmocote Smart-Release Plant Food Plus Outdoor & IndoorOsmocote Smart-Release Plant Food Plus Outdoor & Indoor

Magnesium and sulfur, two essential secondary macronutrients, are added as well. And six micronutrients: iron, zinc, molybdenum, boron, manganese, and copper. Making it suitable for resolving nutrient deficiency problems in your soil. With the Osmocote Smart-Release Plant Food Plus, you will feed a wide variety of plants, such as trees and flowers.

It contains 11 vital elements that help your geraniums’ root system and bud production. It’s an intelligent, slow-release solution that makes it easy to feed your plants.

This fertilizer will do its job of slowly nourishing your plants to their most significant potential if used in the proper environment. Using this fertilizer is easy because once you sprinkle it on the ground, the granules dissolve when water is applied, and the nutrients are quickly absorbed.

When plants are actively growing, time the release of nutrients the coincides with temperature changes. With this product, you’re getting six months’ worth of nutrients for your plants, and that’s a huge plus.

So if you’re on a low budget yet want to see your cherished pine trees grow faster, this is the product for you.

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.

The things that might be bothering you: Only after following a regular watering plan can nutrients be released.


3. Dr. Earth GL61100518430 FertilizerDr. 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.


4. Miracle-Gro Liquid All Purpose Plant FoodMiracle-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.


5. Miracle-Gro Blooming Houseplant FoodMiracle-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.


6. Jobe’s Organics All-Purpose FertilizerJobe’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.


7. BioAdvanced 701710 8-11-5 FertilizerBioAdvanced 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.


8. Jobe’s Hanging Baskets and Potted Plants Fertilizer SpikesJobe's Hanging Baskets and Potted Plants Fertilizer Spikes

A healthy plant with brilliant colors is the outcome of using Jobe’s Fertilizer Spikes, which feeds the roots. It’s slow-release, so it can feed the plant for up to eight weeks before it runs out of energy. One bag will last you several months and feed your entire garden without the need for frequent reapplication.

Jobe’s All-Purpose Fertilizer is a 4-4-4 organic fertilizer made from natural elements like feather, bone, and potash sulfate. This fertilizer also contains Biozome, which is made up of beneficial microorganisms that improve the soil’s condition and the nutrients it offers for your geraniums.

Jobe’s fertilizer spikes are convenient and quick to use, and they feed the roots with nutrients below the soil’s surface. For two months, roots receive consistent nutrition from a single application.

Nutrients are slowly distributed at the root zone, with no mess, hazard, or chemical runoff. These spikes also prevent nutrients from being washed away like those in surface-applied fertilizers.

Because Jobe’s spike fertilizer is odorless, you can use it on indoor plants as well. As well as geraniums, the formula works on a wide range of other plants as well.

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.

The things that might be bothering you: If the spikes aren’t stored properly, they’ll become crushed and lose their effectiveness as a slow-release fertilizer.


9. Fertilome Geranium Hanging Basket and Pansy Plant FoodFertilome 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.



  • 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

Fertilizers include the most essential nutrients for plant growth, and using them is essential. For your geraniums, we’ve selected some of the best fertilizers available. Using these products, you will boost the health of your plants and the number of blooms they produce.

While perennials are lovely to look at, they aren’t as long-lived as annuals because they require your attention and correct nutrition in addition to fertilizer. We sincerely hope that this guide has aided you in making an informed selection about which fertilizer to get.