10 Best Fertilizer For Garlic 2025 in the United States

The FoxFarm Fertilizer Soil Trio is a set of three liquid fertilizers designed to work together to support plant growth in different stages. For garlic, which benefits from good nitrogen for leafy growth, phosphorus for strong roots and bulbs, and a balanced nutrient supply, this trio offers a thoughtful combination. Grow Big promotes strong vegetative growth, which is important early on. Tiger Bloom adds phosphorus and some nitrogen, helping garlic develop robust bulbs and flowers. Big Bloom provides organic nutrients and is gentle enough to use regularly with watering.

These fertilizers are organic, which suits gardeners looking for natural options and makes them safer for soil life and the environment. The liquid form allows quick absorption, but since it's fast-release, it might require more frequent applications compared to slow-release fertilizers. The liquid nature means you have to measure carefully and apply regularly, which might be less convenient than granular options.

This trio serves as a solid choice for home gardeners growing garlic who want organic, well-rounded nutrition and are willing to invest a bit of extra care in application.

FoxFarm Grow Big Liquid Plant Food is a liquid fertilizer with an NPK ratio of 6-4-4, indicating a higher nitrogen content to support leafy growth. This makes it especially suitable for the vegetative stage of plants. While garlic benefits from nitrogen early on, it also requires balanced nutrients throughout its growth, including phosphorus and potassium, which this fertilizer provides in moderate amounts. The product is organic-based, containing natural ingredients like earthworm castings and kelp, which promote soil health and are safe for regular use.

This fast-release liquid formula allows plants to absorb nutrients quickly, facilitating timely feeding though it may require more frequent applications. The fertilizer also includes micronutrients through its power blend, supporting overall plant health and flavor development, which enhances garlic’s taste. It is versatile and easy to use by mixing with water, making it convenient for both indoor and outdoor potted plants. Although mainly designed for vegetables, flowers, and herbs, it can effectively support garlic growth, particularly in pots or smaller garden areas.

One consideration is that the formula focuses on vegetative growth, so additional phosphorus and potassium supplements might be necessary during the bulb development stages of garlic. FoxFarm Grow Big is a quality organic liquid fertilizer that encourages healthy roots and plant size, but complementary feeding may be required to fully meet the nutrient needs of garlic bulbs.

FoxFarm Big Bloom is an organic liquid fertilizer with a very low NPK ratio (0-0.5-0.7), providing minimal nitrogen, phosphorus, and potassium compared to typical fertilizers. This slow-release formula is rich in natural micronutrients from ingredients like earthworm castings and bat guano, which help improve root health and enhance the flavor and aroma of plants.

Since garlic benefits from a balanced nutrient supply—especially early nitrogen for leaf growth and potassium for bulb development—Big Bloom's low NPK might not fully meet garlic’s nutritional needs on its own. However, its organic nature and micronutrient content can support garlic’s overall health when used alongside a nitrogen-focused fertilizer.

The liquid form is easy to mix and apply, making feeding straightforward for both indoor and outdoor plants. The product is organic and gentle with broad soil pH compatibility, but for best garlic results, soil pH should be monitored separately. If you want a natural, gentle fertilizer to boost plant vitality and flavor, Big Bloom is a good choice, ideally combined with other fertilizers that provide higher nitrogen levels to fully support garlic growth.