10 Best Rose Fertilizers 2025 in the United States

The BioAdvanced All-In-One Rose and Flower Care Fertilizer is a liquid concentrate designed not only to nourish roses but also to protect them from common pests and diseases. This product combines fertilizing with insect and disease control, which is convenient for gardeners looking to simplify rose care. It contains synthetic active ingredients like Imidacloprid and Tebuconazole, offering effective protection against pests such as aphids and Japanese beetles, and diseases including Black Spot and Powdery Mildew.

The product is rainproof for up to six weeks, meaning you don't have to reapply frequently, which is helpful for busy gardeners. Application is straightforward—mix the concentrate with water and pour it at the base of your roses, avoiding leaf contact to prevent damage. If you prefer organic fertilizers, this product would not fit since it's synthetic.

This fertilizer is well-suited for gardeners who want an easy-to-use, multi-purpose product that feeds roses and protects them from pests and diseases without frequent reapplications. However, if you’re looking specifically for an organic option or a product focused solely on feeding with detailed micronutrients, this might not fully meet those needs.

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.

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.