10 Best Rose Fertilizers 2025 in the United States

BioAdvanced All-In-One Rose and Flower Care is a convenient granule fertilizer designed to support healthy rose plants by promoting strong roots and vibrant blooms. This product doubles as a multi-purpose treatment by combining fertilizer with pest and disease control, making it ideal for those seeking an all-in-one solution without buying multiple products. It contains synthetic active ingredients like Imidacloprid and Tebuconazole that target common rose pests such as Japanese Beetles and Aphids, as well as fungal issues like Black Spot and Powdery Mildew.

The systemic and rainproof formula lasts up to six weeks, reducing the need for frequent applications. However, if you prefer purely organic fertilizers or want precise control over nutrient ratios, this might not be the best fit. Additionally, the product is restricted in several states, so availability could be limited depending on your location.

This product is well suited for gardeners seeking a straightforward, combined fertilizer and pest/disease treatment, especially if managing pest problems alongside feeding roses is a priority.

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.

Great Big Roses Soil and Rose Fertilizer Booster is a liquid concentrate designed to improve soil and boost the effectiveness of your existing rose fertilizers. It works by enhancing soil structure and increasing nutrient availability right at the roots, helping roses absorb fertilizer more efficiently. This product contains a blend of compost extract, humic acids, chelated trace minerals, and seaweed, providing useful micronutrients beyond standard N-P-K values.

One of its standout features is that it is USDA organic certified, making it a good choice if you prefer environmentally friendly and natural gardening products. It’s easy to use—just dilute four ounces in a gallon of water and apply around the base of your plants without digging. This makes it convenient for gardeners who want to improve soil health without much hassle.

Since it is a booster and compost extract rather than a complete fertilizer, it may not supply all the nitrogen, phosphorus, and potassium your roses need on its own. You will likely need to combine it with a balanced rose fertilizer to cover all nutrient needs. This product suits rose enthusiasts aiming to enrich their soil naturally and enhance fertilizer performance, especially those who value organic inputs. If you're looking for a full N-P-K fertilizer or need specific nutrient ratios, you might want to complement this booster with a traditional rose fertilizer.