Some good liquid fertilizers include Bonnie's Plants Herb, Vegetable and Flower Plant Food; Miracle-Gro Liquid All Purpose Plant Food Concentrate and several Agro-Culture Liquid Fertilizers products. One advantage of liquid fertilizers is that they are quickly absorbed by the plant, which benefits from the nutrients immediately.
Use Miracle-Gro Liquid All Purpose Plant Food Concentrate by mixing 4 capfuls of fertilizer with 1 gallon of water to fertilize one 20-square-foot area. To apply, completely soak the soil around each plant with the fertilizer mixture. This fertilizer feeds all types of plants instantly, including flowers, vegetables, trees and houseplants.
Bonnie's Plants Herb, Vegetable and Flower Plant Food provides plants with eight beneficial nutrients to enhance growth. This product also contains oilseed extract, a renewable source of plant nutrition that contains a number of organic compounds essential to plant health. According to the Bonnie's Plants website, the benefits of using this liquid fertilizer on plants include stronger roots, stems and leaves; an increased level of tolerance to temperature-change-related stress and a higher yield at harvest time.
Agro-Culture Liquid Fertilizers manufactures several varieties of liquid fertilizers, including Pro-Germinator, Sure-K, N-Suite and ferti-Rain. The company formulates its fertilizers with macronutrients, micronutrients, secondary elements, supplemental nutritionals and specialty products.