Best Potassium Fertilizer

General Hydroponics FloraSeries Hydroponic Nutrient Fertilizer System with FloraMicro, FloraBloom and FloraGro, 1 pt.

  • The FloraSeries is a hydroponic-based nutrient fertilizer system that helps fulfill your plants’ nutrient needs at every stage of growth.
  • Nutrients included are FloraMicro, FloraBloom, and FloraGro.
  • FloraMicro is rich in nitrogen, calcium, and chelated micronutrients to help support fast-growing crops during all growth stages.
  • FloraGro is blended with nitrogen phosphorus, potassium, and magnesium for support of structural and foliar growth.
  • FloraBloom is packed with phosphorus, potassium, magnesium, and sulfur to help boost results during flowering and fruiting.
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Fox Farm Big Bloom, Grow Big, Tiger Bloom Hydroponic Liquid Nutrient Soil Fertilizer for Indoor Gardens, Flowers, and Fruits (Pack of 3)

  • Happy Frog Japanese Maple Fertilizer contains phosphorus and potassium to support the needs of these beautiful trees..
  • It is formulated for Japanese maples and all low pH feeders and evergreens..
  • Happy Frog Japanese Maple Fertilizer is specifically formulated for use on Japanese maples, lilies, evergreens, hydrangeas, junipers, dogwoods, flowering ornamentals, and other low pH feeders..
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20-20-20 Plant Fertilizer by GS Plant Foods- All Purpose Water Soluble Plant Food with Kelp & Micronutrients (3 Pounds) - Suitable for All Plants, Turf, Indoor & Outdoor Plants

  • ALL PURPOSE 20-20-20 FERTILIZER: 20-20-20 water soluble fertilizer is an all purpose plant food that feeds your plants and turf directly through the roots and leaves. Great for all plants, vegetables, grasses, shrubs, indoor and outdoor, our water soluble plant food is formulated to increase plant vigor, turf greening and growth, flower development sites, and garden yields. This plant food will give all of your plants an instant boost in vitality..
  • PACKED WITH ESSENTIAL NUTRIENTS: 20 20 20 fertilizer is a 100% water soluble fertilizer providing the optimum NPK as a supplement. GS Plant Foods All Purpose water soluble plant fertilizer with Kelp and Micronutrients is designed to be the simplest ‘All-in’ method of providing your plants and turf with the necessary amounts of Nitrogen, Phosphorus and Potassium. Our unique blend will give you a quick boost in vibrant colors and plant vitality..
  • ADDED BENEFIT OF ORGANIC KELP:GS Plant Foods Organic Kelp is a natural fertilizer for plants that provides a range of benefits for plant health and growth. Kelp contains nutrients that greatly benefit the development of the plant’s root system, resulting in a stronger, health....
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Jobe's, Fertilizer Spikes, Evergreen Tree, 15 Count, Slow Release, Cypress, Juniper, Magnolia

  • Fast acting, long lasting, robust nutrition feeds trees, evergreens and shrubs.
  • 5 Inch TruSpikes are packed with fertilizer. They're easy to hammer in (no cap required) and will not break, crush or shatter.
  • Rich Molasses Formula. OMRI Listed for Organic Use..
  • Simple to use. For best results, feed once per season -- early spring, and late fall -- for continuous fertilization.
  • Nutrient Rich 7-0-2 Formula with natural ingredients contains 7% Nitrogen for plant growth and color.
  • and 2% Potassium for strong roots. Fertilizer spikes release nutrition directly into the root zone to help promote stronger trees and shrubs without over-fertilizing or runoff..
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Jonathan Green (12414) Winter Survival Fall Lawn Food - 10-0-20 Fall Lawn Fertilizer (15,000 Sq. Ft.)

  • PERFECT FOR FALL USE - This fall lawn fertilizer has an analysis of 10-0-20. The high potassium formula promotes deep rooting and stores nutrients for spring. It also contains slow-release nitrogen that keeps your grass greener later into the year..
  • REPAIRS & PROTECTS - Winter Survival is the ideal fall fertilizer to use when repairing summer lawn damage. It also sets your lawn up for success throughout winter. A thick, healthy lawn in fall can ward off winter stress better..
  • PROMOTES EARLY SPRING GREEN-UP - If Winter Survival is spread early in the fall, a second application in the first week of November will safeguard your lawn over the winter resulting in a greener grass early next spring..
  • MULTIPLE USES - This winter lawn fertilizer provides nutrients to help boost newly seeded lawns as well as help established lawns grow thicker and greener grass with deeper roots..
  • COMPLETE COVERAGE - This 45 lb bag covers up to 15,000 sq. ft. and it can be applied to any type of turfgrass..
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Bonide 301 O8586828 Weed and Feed Control, 32 oz

  • KILLS WEEDS - Liquid Weed & Feed controls black medic, clover, common chickweed, dandelion, dock, english daisy, knotweed, lambsquarters, mallow, mouseear chickweed, oxalis, pigweed, plantain, purslane, & ragweed..
  • 20-0-0 FERTILIZER - These three numbers represent the primary nutrients: nitrogen, phosphorus, and potassium. A bottle of 20-0-0 fertilizer contains 20% nitrogen, 0% phosphate, and 0% potash..
  • OUTDOOR USE - Liquid Weed & Feed is designed for use on bentgrass, bermudagrass, Kentucky bluegrass, fescues, perennial ryegrass, St. Augustinegrass lawns, vacant lots, playgrounds, & more. Not intended for indoor use..
  • COMPLETE COVERAGE - One quart of this product will treat up to 2,500 square feet of turfgrass..
  • READY TO SPRAY - This product arrives in a container with an attached hose-end sprayer. Simply connect a garden hose to the sprayer and begin application. No mixing required..
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Humboldts Secret Tree Trunk - Silicate Additive - Advanced Nutrients - Indoor Plant Food - Hydroponic Nutrients - Liquid Fertilizer 32 Ounce

  • PREMIUM POTASSIUM SILICATE-BASED PRODUCT: Tree Trunk features advanced nutrients that will help the plants natural ability to strengthen its cell....
  • PLANT STRENGTH: Watch your plants grow by applying Tree Trunk liquid fertilizer. Hydroponic nutrients make our product suitable as quality indoor....
  • ABIOTIC STRESS TOLERANCE: Tree Trunk is needed to ensure yield stability under abiotic stress and minimizes the environmental impacts on crop....
  • COMPATIBLE IN ALL GROW MEDIUMS: This formula makes for an excellent indoor plant fertilizer suitable for all grow mediums. The usage rate is between....
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Down To Earth Organic Starter Fertilizer Mix 3-3-3, 5 lb

  • Down To Earth Starter Mix is a five pound box of all natural fertilizer with 3-3-3 formula and is listed by the Organic Materials Review Institute (OMRI) for use in organic production.
  • A mild fertilizer with 3% nitrogen, phosphorus and potassium thast also has essential primary and secondary plant nutrients, like calcium, magnesium, sulfur and iron.
  • Diverse mix of beneficial soil microorganisms to ensure successful planting, expansive root development and vigorous early season growth.
  • Our starter and transplant formula is the perfect way to get your delicate young starts and new seedlings in the ground and ready to thrive.
  • Ingredients: Alfalfa Meal, Fish Bone Meal, Bat Guano, Feather Meal, Langbeinite, Oyster Shell, Greensand, AZOMITE, Kelp Meal, Mycorrhizal Fungi and Beneficial Bacteria.
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Down to Earth Organic Fruit Tree Fertilizer Mix 6-2-4, 5lb

  • Fruit Tree fertilizer provides primary nutrients for plant growth plus added calcium for proper fruit development, so you can enjoy bountiful crops of home grown fruit.
  • Ingredients: Feather Meal, Fish Bone Meal, Calcium Carbonate, Langbeinite, Potassium Sulfate, Alfalfa Meal and Kelp Meal.
  • Down to Earth Fruit Tree is a five pound box of all natural fertilizer with 6-2-4 formula and is listed by the Organic Materials Review Institute (OMRI) for use in organic production.
  • Specially formulated to encourage productive home orchards full of the delicious and nutritious tree fruits now popular in many backyard gardens.
  • From apples, pears and plums to mangos, pomegranates and figs, Fruit Tree can be used on all varieties of fruiting canes, shrubs and trees.
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Down to Earth Organic Fruit Tree Fertilizer Mix 6-2-4, 15lb

  • Down to Earth Fruit Tree is a fifteen pound box of all natural fertilizer with 6-2-4 formula and is listed by the Organic Materials Review Institute (OMRI) for use in organic production.
  • Specially formulated to encourage productive home orchards full of the delicious and nutritious tree fruits now popular in many backyard gardens.
  • Fruit Tree fertilizer provides primary nutrients for plant growth plus added calcium for proper fruit development, so you can enjoy bountiful crops of home grown fruit.
  • From apples, pears and plums to mangos, pomegranates and figs, Fruit Tree can be used on all varieties of fruiting canes, shrubs and trees.
  • Ingredients: Feather Meal, Fish Bone Meal, Calcium Carbonate, Langbeinite, Potassium Sulfate, Alfalfa Meal and Kelp Meal.
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