6 Best Fertilizer For Roses 2020 Buyer’s Guide

Best Fertilizer For Roses. Rose comes in a single blossom or can be arranged in bushes blanketed with blooms. Rose speaks to almost anyone’s heart and no other flower can match. You just can not deny this fact.

You can be an experienced Rose gardener or you are just a beginner, but you can actually plant and grow Rose plants easily. No matter what.

Rose is also a legendary symbol of romance and beauty. Many organizers even organized an event for Roses. Because Rose is beautiful and can be held as a tournament of Roses.

Unfortunately, beautiful Rose gardens do not emerge on their own. Some Roses type thrive with only a few nutrients and minimal care. But most Rose plants can only thrive and thrive well when being fed by regular feedings.

That is only if you have a goal to achieve an abundance of luxuriant blooms and glossy foliage. By feeding it right and choose the right food or fertilizer, Roses can thrive throughout the growing season.

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What food is needed for Roses to grow?

Like other plants, Roses require the basic nutritional building blocks. They are Nitrogen (N), Phosphorus (P) and Potassium (K).

You will always see on each fertilizer package on the market today, the three numbers that are also referred to as the N-P-K ratio. To know what level your Rose plant having those nutrients, you should purchase a soil test kit to do so if you do not have one.

Let us now see how these nutrients work.

Nitrogen (N)

Nitrogen supports healthy vegetative and green growth to plants. It is a component of all proteins. Roses require a stable supply of Nitrogen. Since water washes it away from the root zone, you need to keep it coming.

Nitrogen is needed to build Chlorophyll. It is a green pigment, available in all green plants. Chlorophyll is also available in cyanobacteria that have a role in the absorption of light to provide energy for photosynthesis.

Nitrogen admits the plant to use light to turn liquid or water and carbon dioxide into sugars to feed itself. If Nitrogen is too high, what you will have is lush plants with a low number or no blooms. If Nitrogen is too low, what you will have is Rose with yellow leaves, non-existence new growth, and small pale flower.

Phosphorus (P)

Phosphorus has a vital role in making strong roots and rich or plentiful Rose flower production. If Phosphorus is too low, what you will have is falling leaves, weak flower stems, dull foliage, and buds that will not open.

Another important role of Phosphorus is to make sure Rose plants are well enough to absorb nutrients from the soil. If the supply of Phosphorus is in the proper direction, the roots of the Rose plant will become strong and this is the key to healthy roses.

Potassium (K)

Potassium is an important element that Roses require. It is needed for the formation of chlorophyll and the creation of plentiful blooms. If you see a high potassium level in Rose fertilizer, it means that it will affect the growth rate of the Rose plant at a much better rate.

Potassium also activates important enzymes that provide optimal photosynthesis, plant respiration and maintaining maximum health. Potassium or potash encourages robust growth and keeps all activities in good working order.

Potassium works as an immune system booster. This means that it will aid the Rose plant going through disease infestation, insect damage, drought, and cold temperatures.

If Rose plants have a low level of Potassium intake, this will cause weak steam, poorly developed buds, and yellow edges on the leaves, and brown leaves at the end.

Other needed nutrients for Roses plants


Calcium to Roses can support general plant vigour and provides healthy green foliage on Rose bushes. Calcium improves the strength of root systems, improve the strength of cell walls, and resist from sucking insects like aphids.


Magnesium is a vital nutrient needed by Rose plant that encourages dark green leaves, escalates flower colour, increased plentiful Rose flower production, and flushes salts through the soil.

You can use Epsom Salts or Magnesium Sulfate for the Rose garden. Apply 1/3 to 1/2 cup (0.47 litres) per plant at the beginning of the Rose plants growing season.


Lime Sulfur can be sprayed on Roses during spring months to autumn months to control diseases including rust, powdery mildew and two-spotted mites that may be present.


Boron deficiency in Rose plants can result in the small, thickened, curled, scorched leaves and the terminal bud is dying. Boron deficiency can cause Rose flowers to have a shortened petal, that is thick and has the margins roll in.


Rose that is lack of Copper would have symptoms such as leaves with yellow tips. The plant is short, not growing, stunted, and lateral shoots develop.


Lack of Iron in Rose plants results in interveinal chlorosis of the younger foliage. The newly formed leaves will remain small and turn to pale yellow to white.

Iron deficiencies can be caused by too many salts, high in pH level, overwatering, poor drainage, and extreme temperature.

List of the best fertilizer for roses

1. Bayer Advanced Fertilizer All in One Rose and Flower Care Granules For Roses

This fertilizer product comes in granules and concentrates form. Available in 4 pounds, 64 ounces, and 32-ounce bottle or container or jug. It contains active ingredients including Tebuconazole (1.06%), Imidacloprid (0.11%), Clothianidin (0.05%), Total Nitrogen (6%), Phosphate (9%), Soluble Potash (6%), and Sulfur (2%). A fertilizer with 6-9-6 NPK formulation.

Not only that this product comes as a fertilizer, it can also control target pests and diseases control including Adelgids, Aphids, Black Vine Weevil Larvae, Borers, Flathead (including Bronze Birch and Alder Borers) Roundheaded (including Eucalyptus Longhorned Borers), Budworms, Caterpillars (including rose slugs and leafrollers), Japanese Beetles (adults), Lace Bugs, Leaf Beetles (including Elm Leaf Beetles and Viburnum Leaf Beetles), Leafhoppers (including Glassy-winged Sharpshooters), Leafminers (including Birch Leafminers and Holly Leafminers), Mealybugs, Mimosa Webworms, Pine Tip Moth Larvae, Psyllids, Royal Palm Bugs, Sawfly Larvae, Scales (including Armored Scale [suppression] and Soft Scale), Spittlebugs, Thrips, Whiteflies DISEASE: Black Spot, Powdery Mildew, Rust, and Southern Blight. This fertilizer product can protect Roses plants from disease and pests to up to 6 weeks after one application.

To use this fertilizer product, you must wait until the spring months when Roses plants are actively growing. Do this again every 6 weeks until you reach a total amount of application to 3 times in one year.

If you have sandy soil and the Roses are prone to diseases, the application should be in every 4 to 5 weeks for 4 applications in one year. Limit the application of this fertilizer to 3 applications in only 3 in one year for flower beds.

To get the best result, make sure to pull away mulch that will maximize the penetration to the root of Roses plants. Sprinkle the fertilizer around the ground evenly.

Be committed to removing dirt, and trash from the Rose, flowers and shrub beds. A clean environment will limit diseases and insects to thrive.

This fertilizer will run into the root zone and the entire plant will be fed and protected against insects and disease. If there is rainfall or watering, the product will not go away from the plant.

This fertilizer product will not only work well on Roses but ca also be applied to any flowers, Iris, Hibiscus, Azaleas, Camellias, Rhododendrons and other shrubs. With one container, it can be used to up to 32 Roses plants and other shrubs or can over 700 square feet of flower beds.

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2. Dr. Earth Organic & Natural MINI Total Advantage Fertilizer for Rose And Flower

This fertilizer contains active ingredients such as Forest Humus, Fir Bark, Peat Moss, Worm Castings, Alfalfa Meal, Kelp Meal, Soybean Meal, Fish Meal, Fish Bone Meal, MicroActive Seaweed Extract, Aloe Vera, Yucca Extract, Oyster Shell, Dolomite Limes, Ecto, and Endo Mycorrhizae.

It is available in 4 pounds and 1 pound bag in the market. It is a 4-6-2 NPK formulation fertilizer. Works well for Roses, English Teas, all flowers, Hybrid Teas, Climbers, annuals, and Perennials.

The active ingredients encourage blooms in Roses, annuals, and shrubs. The application can be as a soil amendment for planting shrubs, trees, flowers, vegetables, and bare-root planting.

It can be applied in raised beds, container plantings, enhance aeration, and improve soil drainage in clay soil. It could be used as a protective cover for seeds, mulch for weed control, improve moisture retention, improve nutrient availability, and soil health.

The Alaskan fishbone that it contains, aids biological life in the soil. It encouraging earthworms and the breakdown of organic matter. It affects the production of better aeration.

The alfalfa meal has multiple benefits for the Roses plant. Many trace elements in Alfalfa meal that make plants thrive. It provides vitamins such as A, B, and E, as well as minerals like magnesium and iron. It also provides sixteen amino acids that play vital roles in healthy plant growth.

After application, you would expect strong roots, blooms, and shoots of Roses plants. For Roses, you only need 1 cup full of fertilizer per 1 plant.

All you have to do is to apply granules to soil spread around the base of the plant. Sprinkle evenly under the branches. The top 1 to 2 inches of soil must be spread. Water well soon after applying.

The best result to use this fertilizer product is in the spring. The right time when plants are in their actively growing stage. Do this again in every 6 weeks times 3 applications per one year. Use it in 4 to 5 weeks if the Roses plants are prone to diseases and planted in sandy soil.

It works by penetrating the root for protection against diseases and pests, and for feeding the plant. A very suitable and reliable fertilizer for Roses plants.

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3. Jobe’s Organics Roses And Flower Fertilizer Spikes

This fertilizer comes in the form of spikes. It is available in 10 spikes and 50 spikes. It is a 3-5-3 NPK formulation fertilizer.

This fertilizer is ideal and suitable for Roses, all flowers and flowering shrubs. And also for new planting or seeds or for established plants and shrubs.

With 10 spikes, it would enough cover 7 to 8 feet (2.44 m) of plant matter. It contains Biozome, Bone meal, and feather meal.

The Biozome is a blend of Archaea, healthy bacteria, and Mycorrhizal fungi. Biozome function is to improve soil quality for a long period of time, boost Roses plant growth and increase resistance to pests, insects, disease, and drought.

The bone meal role is to provide Roses that need more phosphorus than other plants. Bone meal is a natural product that contains 10 to 13 per cent phosphorus.

It works slowly on its way through the soil. It would be very effective on young Roses roots.

Feather Meal is made of processed poultry feathers. It provides a consistent supply of nitrogen to plants. It keeps plants healthy. Feather Meal also provides both fast nutrient enrichment, and a constant feed. The result would be a consistent growth

This fertilizer does not contain harmful chemicals, so it is safe for the environment. It will not burn the plant and prevent runoff and also waste.

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4. Miracle-Gro Water Soluble Rose Plant Food

This fertilizer product is a water-soluble rose plant food with 18-24-16 NPK formulation. It is derived from Urea, Copper, Potassium Phosphate, Ammonium Sulfate, Iron, Manganese and Zinc.

It is available in a 1.5 pounds (0.68 kilograms) container. This fertilizer will grow vibrant and beautiful roses. Once it is applied, it works quickly and provides fast results.

You can be satisfied because the Rose bloom and repeat-blooming flowers after application. You just apply every 7 to 14 days to achieve that. It is water-soluble so it would be easy to nourish and water the plant.

The thing can convince you to use this fertilizer is that it is supported by the American Rose Society. You do not doubt this legitimacy.

This fertilizer is suitable for roses and all types of flowers. If you are using a feeder, use one pre-measured feeder refill packet and this will cover 500 square feet (46.45 square meters) in about 12 minutes.

If you are watering using a bucket or can, mix 1 tablespoon per gallon with water with scoop provided by this fertilizer package.

For Roses plants application, drench the soil around your rose bushes with 1 gallon (3.79 litres) of solution per Rose plant. For the proper feeding, feed roots of Roses shallow and widespread.

Make sure to extending far beyond the total width of the plant. Feed an area 2 to 3 times the width of the plant. For other flowers, use 1 gallon (3.79 litres) for every 10 square feet (0.93 square meters) of the planting area.

One application must be repeated one time every week or two weeks. Then the Roses plants will receive a consistent and stable amount of nutrients.

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5. Miracle-Gro Fertilizer for Rose And Bloom Plant Food

This fertilizer is available in 8 pounds (3.63 kilograms) bag. It is an 18-6-12 NPK formulation fertilizer. It contains natural ingredients such as Kelp, Feather meal, and Earthworm castings.

Kelp is a type of brown seaweed grows in shallow ocean waters. As a granular meal for Rose, it provides essential nutrients in organic form and many beneficial trace minerals. Kelp also contains plant growth hormones that support lush Rose foliage and richly coloured blooms.

Worm castings aid in soil PH to a balanced level, remove bacteria and toxins from the soil, stimulate root growth and allow plants to easily take up nutrients in the soil.

This fertilizer is specially formulated with micronutrients, ideal in providing food or other substances necessary for growth, health, and good condition of the soil.

This fertilizer product is suitable for acid-loving plants such as shrubs and flowering trees. It maintains plants’ health and maintains its bloom and deep green foliage.

It works fast to give nutrients to trees and shrubs with long-lasting effects. It provides continuous release feeding for three months. Perfect choice for the ground and in container Rose plants.

It would be recommended, to have better results, to apply this fertilizer in early spring. It is the time when leaves emerge.

Start the application again during the hot late summer. One 8 pounds (3.63 kilograms) bag can cover up to 480 square feet (44.59 square meters) of Rose plants.

Spread the fertilizer over the soil, then incorporate it into the ground. Water well and do this again in three months. It would be a good buy with many satisfied verified purchasers.

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6. Scotts Super Bloom Water Soluble Plant Food Fertilizer for Roses

This fertilizer product is a 12-55-6 NPK formulation fertilizer. It contains Nitrogen (12%), Phosphate (55%), Soluble Potash (6%), and Chelated Iron (0.10%).

It is a good use for planting Roses and outdoor flowers in containers, planters or garden bed areas. This fertilizer is specially formulated to feed plants immediately for the purpose of faster blooms and beautiful blooms.

This product contains Chelated Iron for better and faster plant growth and beautiful colour leaves. It dissolves with water once mix. This fertilizer has a wetting agent to help diffuse all essential nutrients into the soil. Available in a 2 pound (0.91 kilograms) bottle.

To apply this fertilizer to Rose plants, use a watering jug to dissolve the plant food in the water. Sprinkle the mixture to the soil roughly at the base of the plant.

Feed all blooming Rose plants every 7 to 14 days. Be sure the soil is moist before applying.

After each application, water well. Water another time to incorporate it into the soil completely. Water your Rose plants with this mixture every two weeks.

You must read the direction carefully and use them accordingly. The formulation is very strong. Do not use it too much or it can hurt your Rose plants. If you do it right, the result can be excellent.

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How to choose the best site for Roses plants?

Location is very important to Roses plants. You have to pick a suitable site to grow well. Roses grow the best location in areas with full sun.

The location must have at least six or more hours of direct sun in one day. The better choice is more than eight or more hours of full sun per day.

The location must be well-drained or with a good irrigation system is recommended.

You must check the soil with a soil test kit to determine the acidic level of the soil of the location. The recommended level is slightly acidic from 6 to 6.5 pH soil.

If you have chosen a location or site, add organic matter such as compost to the soil. This will improve soil drainage, health, and fertility.

Have a little extra effort with a couple of shovels of compost at planting. Cover up around plants each spring with one inch or two of compost or fine mulch.

If you notice that soils are heavy, grow Roses in raised beds instead. But during winter months, soil temperatures become too low in raised beds.

What is the best time to plant Roses?

Early in spring is the best time to plant Roses in cold climate regions. Potted roses are best planted in late summer or early autumn. But they must be protected over winter.

Do not plant Roses after the first few weeks of fall. Give Roses plants at least three feet apart from each other.

How to grow and fertilize rose plants?

Composition of the best soil for Rose plants

Good soil for Rose plants or Rose garden for growing should consist of approximately 25% water, 25% air, 45% inorganic material or mineral material, and 5% organic matter. Good soils are actually about half water and air by volume.

This fact alone makes it clear that water and air are very important in proper soil function. Water is essential to all living organisms within the soil and to all plants rooted in it.

Water keeps plants strong and is a vital component of photosynthesis. This is the process whereby Rose plants make their own food by utilizing the energy of sunlight to convert CO2 and water into carbohydrates.

The ideal combination of soil texture for growing Roses is 60% sand, 20% silt, and 20% clay. The 60% sand is ideal for adequate drainage of water. Otherwise, roots could suffer or die from lack of oxygen as water pushes out air and fills up pore spaces.

The 20% silt is ideal for retaining sufficient available water and freely giving it up to plant roots as needed. Much of the water taken up by plant roots comes directly from silt-size particles.

The 20 % clay is ideal for holding water and mineral nutrients in reserve. We see that the 60–20–20 combination of inorganic particles is the near-perfect balance to help provide optimum water and mineral nutrient needs of Roses.

Although the proportion of organic matter in good garden soil is much smaller than the proportion of inorganic material, 5% vs. 45%, it nevertheless plays vital roles in nutrient cycling and in building and maintaining good soil structure.

At this point, it is worth mentioning that our native sandy soils typically contain only about 1% organic matter compared to the 5% ideal.

Soil preparation

Like any plant, Roses will do better if you are able to provide better care. Proper soil preparation is the most important thing to improve their performance.

If you give much effort and some time to get a well-prepared soil, this will absolutely help the plant get established quickly, grow healthy, and experiencing fewer ​problems in the future.

The ideal pH for soil

The pH level of the soil will affect how well the penetration of nutrients in the soil. If the pH is not at the right level, the Rose plant can be stressed out, even with extra care and maintenance.

Rose prefers a soil pH like the level of garden soil, between acidic to neutral (6.0 to 7.0). If your soil indicated out of that range, you can make adjustments.

But if it is alkaline or acidic, you can not adjust to a fast pace. Consider growing your roses in containers.

Soil type

Roses need moisture to absorb and this means it requires a soil that drains well. The most ideal soil for Roses is loam soil.

Clay soil can make the roots soggy or wet. Sandy soil can make the roots dry and does not get a good enough drink.

Enriching the Soil

If the Roses plants are showing the sign of continually stressed, such as yellowing, you have to add some nutrients to the soil. Feed the soil of Roses plants with mineral as something which is added to soil in order to improve its texture or fertility.

Let the soil feed the plants. If it is combined with organic compost mixed into the soil, you probably have just removed the requirement for constant fertilizing of the Roses plants. It would result in plants, and with less amount of fertilization, activity means less work for you.

Add some Phosphorous when you have poor soils, to develop strong roots and can be well established in a faster time. Use organic Phosphorus in the form of a Bone meal.

Mix about 1/2 to 1 cup (0.24 litres) per bush all over the soil before you plant anything. You may also add kelp for added nitrogen.

Epsom salt can add Sulfur and Magnesium, two minerals vital to healthy plant growth. Mix 1/2 cup into the soil. Another way is to dissolve the 1/2 cup of Epsom salts in water and sprinkle around the Rosebush. Do not touch the leave because it might burn them on hot or sunny days.

When to fertilize Roses plants?

The best time for first feeding would be around mid to late spring months. The weather condition determines the first feeding of roses.

Anytime during these months, you notice that there have been warmer days and night temps in the upper 8 degree Celsius, start feeding the Roses. After that, water well.

Right about one week after the first spring feeding, give Epsom salts and Kelp meal. The next feeding with dry fertilizer is around the early summer months.

Give a little boost feeding of foliage or water-soluble fertilizer. A foliage feeding is done approximately half-way between the granular feedings.

How often to fertilize Roses?

Many sources recommend doing granular fertilizer every 2 to 3 weeks during the growing season. Begin the fertilization program when the plant reaches 4 to 6 inches of new growth or with 5 to 7 leaves.

Stop the fertilizing program about 8 weeks before the cold temperature arrives. If you discover deficiencies in the Rose plants, liquid fertilizers are much more needed for the plant.

Apply fertilizers with a very low level of Nitrogen content when it gets into the fall season. You can apply Bone meal or Phosphate, which aids the promotion of root growth and the preparation of next year’s blooms.

6 Best Fertilizer For Roses 2020 Buyer’s Guide
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