Best Fertilizer for Roses

To perform at their best, your roses need the proper nutrients throughout their growing season.

With proper Fertilization and nutrition, your roses will be able to ward off pests and disease and bloom and grow much better.

So today, we will look at some of the best fertilizers for ross that will give you the gorgeous roses in town.

The Best fertilizers for Roses

So what exactly constitutes the best fertilizers for your roses?

Well, you get Organic and Inorganic Fertilizers.

Organic Fertilizers are derived from plant and animal materials and have many different nutritional values and properties. They generally improve the conditions of the soil and support the most beneficial microbes.

Inorganic Fertilizers, on the other hand, are ready to use and very convenient, they are concentrated and more affordable, yet they do not always improve the soil quality.

Fertilizing Your Roses

There are specific times and methods for fertilizing your roses;

  • When to fertilize – You can start to fertilize when you have four to six inches of new growth and see the roses’ first real new leaflets. You must stop fertilizing at least eight weeks before you expect frost or a cold front. Plants with serious deficiencies to better with faster-acting liquid fertilizers than those just needing some maintenance. Apply fertilizer with very little or no nitrogen as it gets closer to falling.
  • Granular Fertilizers – Granular fertilizers should be given to older plants as they are hard for younger plants to process. Use liquid fertilizers on younger rose plants.
  • Compost and Mulch – Keep in Mind that compost and mulch may rob your plants of nitrogen, so nitrogen may be needed to add.
  • Container Roses – Contained roses need to be fertilized with water-soluble liquid fertilizers on a more regular basis.

Features of a Good Fertilizer for Roses

Roses need five basic nutrients, Nitrogen, Potassium, and Phosphorus, besides a small number of other nutrients.

Here is an explanation of the nutrients that you need to look for in a good fertilizer for roses;


  • Nitrogen – Roses need Nitrogen first to initially promote healthy and vegetative, green growth. Nitrogen is a component of all proteins, and because water washes it away from the roots of roses, they need a consistent supply. It’s needed for building Chlorophyll and allows the plant to use light to turn to water and carbon dioxides to turn to sugars to feed itself. If you use too much nitrogen, you will have very lush rose bushes with very little blooms; though, if you use too little, your roses may have yellow leaves and very pale roses.
  • Phosphorus – Phosphorus is required to promote healthy root development in roses and for abundant flower production. A lack of phosphorus may result in leaves and stems that will drop and weak flowers, with most buds that will not open.
  • Potassium (K) – This is also known as potash in some ingredient lists. Potassium K encourages vigorous growth and ensures everything in the rose plant is in excellent working order. It is an immune system booster for roses that helps the plant through stressful times and disease, insect attacks, as well as damage and cold temperatures, A ack of potassium may lead to weak stems, poorly developing buds, and yellow edges on the leaves, which in turn will discolor to brown.
  • Other Nutrients – Other Nutrients include Calcium to strengthen cell walls and help roses ward off aphids. Magnesium is crucial to promote dark green leaves and intensify flower colors. Magnesium also flushes harmful salts from the soil. That’s why most gardeners love Epsom salts as a time-honored secret. Sulfur, Boron, Copper, Iron, Manganese, and Zinc are some required nutrients in small amounts for your rose.

Reviews: The Best Fertilizer for Roses

Here are our top choices in fertilizers that are perfect for your roses;


The Miracle-Gro fertilizer is an all-purpose, continuous-release fertilizer and plant food for your roses.

  • The Fertilizer contains safe and all-natural ingredients.
  • It promotes blooms and colors in flowering plants as well as roses.
  • Ideal for existing roses and flowering plants.
  • Feeds your roses for up to three months easily.


The Bayer Crop Science fertilizer for roses is an all-in-one design that kills insects, feeds flowers, and offers disease protection.

  • An advanced plant’s food and fertilizer for your rose.
  • It also kills insects and controls diseases such as Fungicide, Black spots, Powdery Mildew, Rust, Southern Blight, and many more.
  • The systematic rainproof protection will last up to 6 weeks and may treat up to 32 roses.
  • It comes in easy-to-use granules.


Jobe’s fertilizer for rose is fully organic and contains Biozome technology for faster absorption.

  • An easy-to-use granular fertilizer for your rose.
  • The fertilizer is natural and fully organic.
  • It contains Biozomes that condition and improves your soil.
  • It is OMRI-listed organic, and all-natural.


The Espoma RT4-4 is a portion of plant food and fertilizer designed especially for roses.

  • An all-natural organic fertilizer for roses and flowers.
  • It is approved and contains microbes that are essential for organic gardening.
  • Most professional rosarians recommend it for its prize-winning bloom yielding.
  • The complex blend of natural and organic materials provides complete and balanced feeding year-round.


The Miracle-Gro water-soluble rose fertilizer is available in different quantity options from which you can choose.

  • The fertilizer instantly feeds roses to grow larger and more colorful.
  • It feeds every one to two weeks. The American Rose Society also endorses it.
  • You can use it with almost any watering can as it is water-soluble.
  • It is guaranteed not to burn if used correctly.


The advanced Rose fertilizer granules come ready to use in a 4-pound container.

  • A safe and natural plant food and fertilizer.
  • The fertilizer kills insects, including Japanese Beetles, Aphids, Leafhoppers, and other listed pests.
  • It also helps to control diseases such as Fungicide, Black spots, Powdery Mildew, Rust, and Southern Blight.
  • You can easily use it on indoor and outdoor roses.


  • Dr. Earth fertilizer is an organic fertilizer for roses.
  • Consist of all-natural and organic ingredients,
  • Perfect for growing and flowering roses.
  • Comes in a four-pound bag.


  • The Miracle-Gro Shake and Food is food and fertilizer for your roses.
  • It feeds roses and helps them bloom.
  • Nourishes the soil for up to three months.
  • Easy to disperse canister.


  • Burpee Organic is an organic Rose and blooms fertilizer.
  • It provides a flush of needed nutrients and promotes blooms.
  • It is OMRI-listed organic.
  • Feeds and delivers nutrients fast and effectively.


  • The Espoma fertilizer is ideal for roses.
  • It tones and enhances growth and blooming.
  • This is a natural and organic fertilizer.
  • The fertilizer contains a complex blend of natural ingredients.

Index Table: Top Rated Fertilizer for Roses

1Miracle-Gro Plant Food - Continuous Release Fertilizer for Roses
  • Continuous Release Design
  • Plant Food
2Bayer Crop Science Advanced - Fertilizer for Roses
  • All In One
  • Granules
  • Kills Insects
Bayer Crop Science97.9
3Jobe’s Organics - Organic Fertilizer for Roses
  • Organic
  • Biozome
  • Options
4Espoma RT4-4 - Plant Food Fertilizer for Roses
  • Food and Fertilizer
  • Size OPtions
5Miracle-Gro Water Soluble - Fertilizer for Roses
  • Plant Food
  • Water Soluble
  • Size Options
6BioAdvanced All In One - Fertilizer for Roses
  • Ready To Use
  • 4 Pund
  • Granules
7Dr. earth Organic - Rose’s Fertilizer
  • Poly Bag
  • Four Pound
  • GMO’s
Dr. earth97.5
8Miracle-Grow Shake N food - Rose’s Fertilizer
  • More Blooms
  • Better Colors
9Burpee Organic - Rose’s Fertilizer
  • Bloom
  • Granular
  • Organic
10Espoma RT18 - Rose’s Fertilizer
  • Rose Tone
  • Natural
  • Organic

About the Author

Eliza Ward

Eliza Ward is a gardening enthusiast, nature lover, and full-time mother for 3 lovely kids in South Africa. She has always had a fetish for beautiful gardens and yards and has the best design recommendations for all her friends and family. So she turned what she loved into her full-time job - by testing and recommending the best gardening products for our online readers. Read her reviews to know how detailed her observations are.

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