Best 16-16-16 Fertilizer For Lawns: 9 Products Compared

#1 · Best Overall

1. Howard Johnson's 16-16-16

• Weight: 20 lb
• Form: Liquid

Best for: All-season lawn and shrub feeding.

Why it ranks #1: Its description explicitly includes lawns, and the title gives a 20-pound package; the specifications list its item form as liquid.

Suitability for all seasons distinguishes Howard Johnson’s 16-16-16 fertilizer for buyers seeking one general-purpose formula across changing lawn and garden needs. The listing names lawns, flowers, trees, shrubs, and vegetable gardens, and identifies ammonium sulfate, urea, ammonium phosphate, and muriate of potash among its ingredients.

The product’s all-season positioning and broad list of uses make it relevant to buyers managing a lawn alongside flowers, trees, shrubs, or vegetables. Its 16-16-16 designation provides the balanced nutrient profile, while the listed ammonium sulfate, urea, ammonium phosphate, and muriate of potash identify the ingredient sources. The specification calls its item form liquid, a practical consideration for shoppers choosing a fertilizer application workflow; the listing does not explain dilution or application steps.

Skip it if you want a granular lawn fertilizer with a described dry-application workflow; GARDENWISE 16-16-16 is listed as granules.

This suits buyers who want a 16-16-16 product listed for lawns and diverse garden plantings across all seasons. Note that the specification calls it liquid and the supplied description does not explain how to apply it.

Listed on Amazon as: Howard Johnsons 7133 16-16-16 Fertilizer, 20 lb

#2 · Largest Listed Volume

2. Gardenera 16-16-16 3 Quarts

• Form: Granules

Best for: Larger-format concentrated lawn feeding.

Why it ranks #2: The product name specifies 3 quarts and identifies lawns among its uses; the listing describes it as a professional all-purpose fertilizer.

Gardenera’s 3-quart package pairs a stated high-concentration 16-16-16 formula with a larger listed format than its 8-ounce counterpart. The granular fertilizer is presented for lawns, flowers, trees, shrubs, and vegetables, with readily available nutrients linked to rapid absorption and visible green-up within weeks.

The equal parts nitrogen, phosphorus, and potassium provide a balanced three-way feeding profile, while the description identifies the formula as higher concentration for demanding plants. Readily available nutrients are said to absorb rapidly and improve plant color and vigor, giving buyers a stated benefit beyond the nutrient ratio. Its granular form suits dry application, and the 3-quart package offers more product than a small trial-sized container, although the supplied details do not state coverage or an application rate.

Skip it if you need a stated lawn coverage figure to calculate application quantity; this listing does not provide one.

This fits buyers seeking a larger-format granular 16-16-16 feed for a lawn and other plantings, with quick green-up among its stated benefits. Plan around the fact that coverage and application rate are not specified.

Listed on Amazon as: Gardenera 16-16-16 Premium All Purpose Professional Fertilizer – Lawn, Flower, Tree, Shrub & Vegetable Fertilizer (3 Quarts)

#3 · Best Granular Lawn Fit

3. Supply Solutions 16-16-16

• Weight: 10 lb
• Form: Granules

Best for: Balanced feeding for mixed gardens.

Why it ranks #3: Its title names lawn and garden use, and the specifications identify granules in a 10-pound package.

A stated 16 percent each of nitrogen, phosphorus, and potassium gives Supply Solutions a clearly specified balanced formula for lawns and mixed plantings. The 10-pound granular product is presented for plants, vegetables, fruits, and berries, so one bag can support buyers feeding a lawn alongside edible and ornamental garden areas.

The equal NPK percentages connect the product’s three-way nutrient profile with its stated roles in plant growth, blooms, and root strength. Its granular form suits buyers who prefer a dry fertilizer, while the 10-pound package gives a defined amount for a home lawn and other plantings. The listing also discusses nitrogen’s role in photosynthesis and protein synthesis, linking its formula to plant processes. It is framed as all-purpose plant food, not solely a lawn formula.

Skip it if you need a listed lawn application rate before choosing a fertilizer; this description gives nutrient details but no rate.

This fits buyers looking to feed a lawn and a varied garden with one balanced granular product. It is an all-purpose choice, so shoppers who require lawn-specific application guidance should account for that boundary.

Listed on Amazon as: Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer – The Ultimate Plant Food for Lush Greenery & Vibrant Blooms – for All Plants, Vegetables, Fruits, and Berries – 10lbs

#4 · Largest Listed Weight

4. Knox 16-16-16 Fertilizer

• Weight: 20 lb
• Form: Granules

Best for: Quick-green-up general lawn feeding.

Why it ranks #4: This fast-acting, all-purpose granular fertilizer comes in a 20-pound package, though its description focuses on trees, shrubs, flowers, and gardens.

Fast-acting, three-way feeding gives Knox Fertilizer a clear role when a lawn needs a quick green-up alongside nutrition for other plantings. Its 16-16-16 granular formula supplies nitrogen, phosphorus, and potash in balanced ratios, making this 20-pound bag a practical all-purpose option for buyers tending grass, trees, shrubs, flower beds, and gardens.

Knox pairs a granular form with a 20-pound package, giving lawn and garden owners a storable supply for multiple planting areas. The listed fast-acting action and quick-green-up benefit suit buyers seeking a visible response, while the nitrogen, phosphorus, and potash provide three-way feeding to support vigorous plant growth. The product is also identified for trees, shrubs, flower beds, and gardens, so it can serve mixed outdoor spaces rather than lawns alone. Coverage varies with the type of plant.

Skip it if you need a stated coverage figure for planning a lawn application; the listing says coverage depends on plant type.

Choose this 20-pound granular fertilizer if you want a fast-acting 16-16-16 option for a lawn plus trees, shrubs, or beds. Account for plant-dependent coverage when planning how much of the bag your yard requires.

Listed on Amazon as: 20lb 16-16-16 Fertilizer

#5

5. Gardenwise 16-16-16

• Weight: 16 oz
• Form: Granules

Best for: Small-bag lawn and garden feeding.

Why it ranks #5: Its title and features explicitly include lawns, and the specifications list granules; its listed weight is 16 ounces.

A compact 3.7-pound package makes GARDENWISE a manageable 16-16-16 option for buyers feeding a smaller lawn as well as flowers or vegetables. Its stated nitrogen, phosphorus, and potassium balance is linked to root growth, foliage, and blooms, bringing several common garden goals into one all-purpose granular fertilizer.

GARDENWISE combines a granular form with a stated 16-16-16 ratio, giving buyers a dry, balanced option for lawns, roses, tomatoes, trees, and shrubs. The listing connects the blend to strong roots and healthy foliage, while also describing support for flowers and vegetable yields. At 3.7 pounds, the package is much smaller than bulk lawn-oriented bags, which may suit limited planting areas but means buyers should consider their lawn’s size before relying on it for broad coverage.

Skip it if you need a large quantity for broad lawn coverage; this package contains 3.7 pounds, while larger bags suit that need better.

Consider GARDENWISE for a small lawn or mixed backyard planting where one granular formula can serve flowers and vegetables too. Its 3.7-pound package is the key boundary for buyers covering a larger area.

Listed on Amazon as: GARDENWISE 16-16-16 All Purpose Professional Fertilizer – Lawn, Flower, Tree, Shrub & Vegetable Garden Fertilizer (3.7 lbs~ 2 qts.)

#6

6. Gardenera 16-16-16 8 oz

• Form: Granules

Best for: Small-format concentrated garden feeding.

Why it ranks #6: The product title names lawns and granular slow-release fertilizer, but its 8-ounce package is a small option for limited applications.

Gardenera’s stated high-concentration 16-16-16 formula is aimed at demanding plants and high-output gardens, with readily available nutrients linked to rapid absorption and visible green-up within weeks. In its 8-ounce granular package, it offers a compact option for buyers tending a lawn alongside flowers, trees, shrubs, or vegetables.

The equal-part nitrogen, phosphorus, and potassium blend gives this fertilizer a balanced three-way profile, while the description says its higher concentration is intended for demanding plants. Readily available nutrients are linked to rapid absorption and visible color and vigor improvements within weeks, giving buyers a stated reason to choose it for responsive feeding. The granular form is suitable for dry handling, but the 8-ounce package is small for broad lawn coverage and better suited to limited areas or multiple small plantings.

Skip it if you need enough fertilizer for a broad lawn; Gardenera’s 3-quart 16-16-16 package offers a larger listed format.

Gardenera’s 8-ounce bag suits buyers seeking a concentrated granular feed for a small lawn area or a few garden plantings. Choose with the package size in mind if your main task is covering a broad lawn.

Listed on Amazon as: Professional 16-16-16 All Purpose Garden Fertilizer for Lawns, Flowers, Trees, Shrubs & Vegetables – 16 16 16 Slow Release Granular Fertilizer (8 OZ)

#7

7. Maxsea 6 lb Plant Food

• Weight: 6.5 lb
• Form: Granules

Best for: Micronutrient-rich indoor-outdoor feeding.

Why it ranks #7: This 16-16-16 granular plant food weighs 6.5 pounds and is described for year-round use on plants, but lawn use is not specified.

A full spectrum of listed secondary elements and micronutrients distinguishes Maxsea All Purpose from a basic three-nutrient description. Its 16-16-16 plant food includes sulfur, boron, copper, iron, manganese, molybdenum, and zinc, and is presented for year-round use on plants indoors and outdoors.

Maxsea combines nitrogen, phosphorus, and potassium with named secondary elements and micronutrients, giving buyers a broader stated nutrient profile for mixed plant care. The year-round indoor-and-outdoor positioning supports use across different plant settings, while the product description links regular feeding with sturdy plants, dark green foliage, blossoms, and fruit and vegetables. Its granular form and 6-pound package provide a defined quantity for ongoing care. The directions refer users to the recommended rate, so follow that rate when planning lawn use.

Skip it if you do not want to use protective equipment while handling fertilizer; the safety directions explicitly call for it.

Maxsea suits buyers seeking a granular, year-round 16-16-16 feed for lawns and other indoor or outdoor plants, with micronutrients included. Use the recommended rate and follow its protective-equipment directions when handling.

Listed on Amazon as: All Purpose 16-16-16 Plant Food, 6 lb.

#8

8. Grow More Sea Grow Kelp

• Weight: 1.5 lb
• Form: Powder

Best for: Water-soluble kelp and seaweed feeding.

Why it ranks #8: The 1.5-pound product is a water-soluble 16-16-16 powder with seaweed and kelp, but the listing emphasizes general plant use rather than lawns.

Water solubility sets Grow More Sea Grow apart for buyers who want a 16-16-16 plant food that can be prepared in water. Its powder formula adds seaweed and kelp extract, alongside organic carbon, amino acids, and carbohydrates, and is listed for indoor and outdoor plants as well as garden use.

The water-soluble powder offers a different workflow from a granular lawn fertilizer: buyers prepare the product in water rather than handling it as dry granules. Its 16-16-16 nutrient blend is paired with seaweed and kelp extract, which the listing associates with increased growth and lush blooms. Organic carbon, amino acids, and carbohydrates are also named among its nutrients. The 1.5-pound package is a defined amount for mixed indoor and outdoor plant care, but preparation requires mixing.

Skip it if you prefer a dry granular application without mixing; Maxsea All Purpose 16-16-16 is listed as granules.

Choose Grow More if water-soluble feeding and seaweed or kelp extract suit your lawn and broader plant-care routine. Its powder format requires mixing, so it is not the direct-pour granular option some lawn owners prefer.

Listed on Amazon as: Grow More Sea Grow Kelp Fertilizer – 1.5lbs of 16-16-16 Water-Soluble, All-Purpose Plant Food – Nutrient-Rich, Seaweed Fertilizer – Outdoor & Indoor Plant Food

#9

9. Maxsea All Purpose 1.5 lb

• Weight: 1.5 lb
• Form: Granules

Best for: Water-mixed all-purpose granular feeding.

Why it ranks #9: The 1.5-pound granules are directed to be dissolved in water for plants, with no specific lawn use stated.

Directions to dissolve its granules in water give Maxsea All Purpose a distinct application workflow among 16-16-16 fertilizers. The 1.5-pound product is labeled for all-purpose plant nutrition, making it a compact choice for buyers who want to prepare a solution for plants rather than spread the granules dry.

Although the item form is listed as granules, the directions say to dissolve them in water and apply regularly. That combination means buyers should plan for mixing rather than treating it as a straightforward dry-spread lawn product. The all-purpose 16-16-16 label signals a balanced fertilizer, while the 1.5-pound package suits smaller or mixed plant-care needs. The supplied details do not specify a lawn application rate or describe the water-to-product ratio, so lawn planning needs careful attention to the label directions.

Skip it if you want a ready-to-spread granular lawn fertilizer; GARDENWISE 16-16-16 is listed as granules without water-dissolving directions.

This is a fit for buyers willing to dissolve granules in water for all-purpose plant feeding. Its supplied directions do not state the mixing ratio or a lawn rate, so it may not suit shoppers seeking a clearly specified lawn routine.

Listed on Amazon as: Maxsea All Purpose (16-16-16) 1.5lb