10 Best Rose Fertilizers 2025 in the United States

Jobe's Organics Granular Rose Fertilizer is a well-regarded option for gardeners looking for an organic solution to nourish their roses and other flowering shrubs. With a 3-4-3 NPK ratio, it provides a balanced supply of nitrogen, phosphorus, and potassium, which are essential for vibrant blooms and healthy foliage. Being an organic fertilizer, it is free from synthetic chemicals, making it a safer choice for the environment and for gardeners who prefer natural products.

The OMRI listing confirms its suitability for organic gardening. One of its standout features is the simplicity of application, recommending use every 6 weeks during the blooming season, which aligns well with the care schedules of most flowering plants. However, the absence of specific mentions of micronutrients such as iron or magnesium might be a drawback for those looking for a more comprehensive nutrient profile.

The granular form helps in easy measurement and reduces the risk of over-fertilizing. While the product is designed to minimize waste and mess, some users might still find granular fertilizers slightly more cumbersome to apply compared to liquid formulations. The 4-pound bag size is practical for most home gardens, but larger gardens may require multiple bags. Jobe's Organics Granular Rose Fertilizer offers a reliable and eco-friendly option for those looking to boost the health and beauty of their flowering shrubs with a straightforward application regimen.

The BioAdvanced All-In-One Rose and Flower Care is a well-rounded choice for those looking to enhance their rose plants' health with minimal effort. Priced for convenience, this granule-based fertilizing product also serves as an insect killer and fungicide, making it a three-in-one solution. It works by promoting strong roots and vibrant blooms thanks to its effective formulation. The fertilizer is synthetic, which ensures a quick uptake of nutrients by the plants but may not be suitable for those specifically seeking organic alternatives.

The product also controls pests like Japanese Beetles, Aphids, and Leafhoppers, and combats diseases such as Black Spot and Powdery Mildew with its fungicidal properties. One notable advantage is its rainproof protection that lasts up to six weeks, reducing the need for frequent reapplication. However, the restriction in New York might be a limitation for some users.

The granule form makes it easy to apply, and it can be used for both indoor and outdoor plants, adding to its versatility. The product size is manageable (4 pounds) and should cover a reasonable number of plants. It's a strong choice for gardeners looking for an all-in-one rose care solution, especially those dealing with pest and disease issues, though it may not meet the needs of organic gardeners.

The Espoma Organic Rose-Tone 4-3-2 Organic Fertilizer is a versatile option for those looking to enhance the growth and blooming of their roses and other flowering plants. Its N-P-K ratio of 4-3-2 is well-suited for promoting green growth and abundant blooms. One of the notable strengths of this fertilizer is that it is organic, making it safe for the environment and suitable for organic gardening. The inclusion of Bio-tone formula and 5% calcium helps in providing additional nutrients that are beneficial for plant health.

It comes in a granular form, making it easy to apply directly to the soil without needing any mixing. The recommended monthly application from May through September simplifies the usage schedule for gardeners. With a medium coverage range, a pack of two 4-pound bags should last through the growing season for most users.

Some users might find the need for more frequent application as a downside, especially if they prefer less maintenance. Additionally, while being organic is a plus, it may not be as fast-acting as synthetic alternatives. This product is an excellent choice for eco-conscious gardeners who are looking for a reliable and effective fertilizer for their roses and other flowering plants.