What is the best fertilizer for roses in the market today is one of the frequently asked questions by rose farmers. For roses to thrive, they need a continuous supply of nutrients throughout their growing period. Strong vigorous roses not only bloom better, but they also withstand disease and insect problems.
There are many nutrients that roses need to bloom. These nutrients come in the form of fertilizers. Here are the three most important nutrients that roses need.
3 Important Nutrients for Roses
Like all the other plants, roses need Potassium, Nitrogen, and Phosphorous to bloom. These are the three primary nutrients that every fertilizer should contain.
Potassium. Also known as Potash, it helps roses recover from diseases or stress. Plants that have potassium deficit develop yellow leaf margins and weak flower stems.
Nitrogen. It encourages vigorous leaf growth which helps the rose plant make healthy flowers. Healthy leaves equal healthy flowers! Too much Nitrogen is also harmful; it brings too much foliage and fewer blooms. Fewer Nitrogen results in yellow leaves, smaller blooms, and stunted growth.
Phosphorous. It promotes abundant flower production and root development. Phosphorous shortage results in weak flower stems, buds that won’t open, and leaf dropping.
Apart from these three important nutrients, roses also need other micro-nutrients like:
When Do the Roses Need the Fertilizers?
For newly Planted Roses. Add rich organic matter like compost manure to the planting hole. You may add some fertilizer while planting for vigorous root development. Every 3 to 4 weeks, add some mild fertilizer to stimulate more growth. Use mild to protect the new plants from leaf margins and their root tips burning.
For already Established Roses. Begin using the fertilizer as soon as new leaves emerge. A high nitrogen fertilizer or alfalfa meal is best for the first application. This jump-starts leaf production while encouraging cane and lush growth. When shoots are about 4-5 inches long, add a slow release of fertilizer to strengthen them.
Continue to add more fertilizer every 2 to 4 weeks throughout the growing season. This depends on the type of fertilizer you will use.
For Container Roses. Due to frequent watering, nutrients leach out more quickly in container roses. You will need to add more fertilizer as often as possible more than the roses planted in the garden.
Late Summer to early Fall Roses. This season is sensitive to the roses. Apply a slow-release fertilizer with low nitrogen count to promote next year’s bloom. 6 to 8 weeks before the average frost date, stop applying any more fertilizer. This is to prevent new growth from getting frost damage.
Besides applying fertilizer to your roses be sure to:
- Prune them in good time
- Treat aphids and powdery mildew early enough
- Control Japanese beetle infestations
- And finally, improve your soil condition
Learn more about When is the best time to plant roses
Two Types of the Best Fertilizer for Roses
Organic Rose Fertilizer. These come from animal or plant matter and are best for the plant, soil, and the environment. They have different nutritional advantages. These fertilizers can be used on their own or combined with other fertilizers. They are quite expensive to make or buy!
Inorganic Rose Fertilizer. They are also known as synthetic or man-made fertilizers. These fertilizers are ready to use and conveniently available at a lower rate compared to the organic ones. Such an excellent addition to the organic fertilizers.
What is the Best Fertilizer For Roses? A Review
Let us look at some of the best fertilizes for roses in the market today.
This rose plant food is excellent in promoting lush foliage and beautiful blooms. It works immediately after application to produce beautiful results. For best results, feed your roses every 7-14 days throughout the growing season.
- Ideal for use in all types of roses
- It is easy to use with a watering can or the Miracle-Gro Garden Feeder
- Endorsed by the American Rose Society
- Guaranteed not to burn the roses when used the right way
- Used for roses and all types of flowers
- It is economical; a little goes a long way – 1.5lbs feeds up to 600 square feet
- The packaging is smaller than described. You might have to buy more for a thorough application
This plant food feeds the rose plant fast while delivering long-lasting results. Roses are heavy feeders that need a constant supply of nutrients to maintain their growth and production. Burpee Organic provides a flush of nutrients that feed the plant for up to 3 months.
- It provides the rose plant with beneficial microbes that help keep the soil and plants healthy.
- Ideal for container roses, individual bushes, established beds, and other flowers
- Omri labeled for organic use
- Provides beneficial microbes that help promote spectacular blooms, color, and stronger root development
- Costs a bit higher than most rose fertilizers
This fertilizer produces remarkable roses and flowers. Its nutrients are quickly released. It continues to feed the plants for several months. It’s possible to use it in raised beds, during transplanting or throughout the season.
- 100% natural and organic
- Provides the plant with most levels of primary plant nutrients
- Produces larger and more abundant blooms
- Loosens and improves the soil texture
- Feeds the plants for several months
- Contains probiotic seven Champion stains that is beneficial to soil microbes
- Restricted in some states due to the level of phosphorous contained in the product. Phosphorous runoff poses a threat to the water quality.
This product promotes beautiful blooms on roses and all flowering plants. It delivers a steady feeding to boost blooms on the roses, perennials and annuals alike. Simply apply it directly to the soil and let it feed the plants for up to 2 months. 1 cup of this product covers approximately 30 square feet. It is very easy to use – apply directly from the bag to the soil around the plants. Always water it well after application. The nutrients feed the plant up to 2 months since the application.
- This formula is safe; it does not burn your plants when used as directed.
- It is economical. The application should happen every 2 months during the growing season.
- It promotes beautiful blooms on roses and all flowering plants
- It is not as thick as the other competing fertilizers
Rose flower is a classic, always in demand! Whether for home, office, or wedding decor, rose flower does not go out of fashion. Whether they are for sale or for use at home, they are worth every effort!