Best Organic All Purpose Fertilizer for Gardens and Houseplants

#1 · Best Overall

1. Jobe's Organics Granular

• Weight: 16 lb
• Form: Granules

Best for: Organic garden bed staple.

Why it ranks #1: Its 4-4-4 formula and listed uses span vegetables, flowers, trees, shrubs, and plants; the 16-pound bag is OMRI listed for organic gardening.

A 4-4-4 NPK formula gives this Jobe’s Organics granular fertilizer a balanced role across vegetables, flowers, trees, and shrubs. Its 16-pound bag suits gardeners feeding several plant types, while OMRI listing supports use in certified organic food production and the granules are intended to avoid wasteful runoff, mess, hazards, and smells.

The 4-4-4 blend supplies a consistent all-purpose nutrient profile, so one product can serve vegetables, flowers, shrubs, and trees rather than requiring a separate formula for each. OMRI listing makes it suitable for certified organic food production, and the directions call for application every two to three weeks or as needed. Granules typically release more slowly and last longer, supporting root access to nutrients between feedings; the 16-pound quantity is suited to broader garden use.

Skip it if you prefer one feeding to last up to three months; Miracle-Gro Organic All Purpose Plant Food lists that duration.

Choose this for an organic garden with vegetables, flowers, shrubs, or trees that can follow a two-to-three-week feeding routine. Its 16-pound bag makes more sense for multiple plantings than a small, occasional-use setup.

Listed on Amazon as: Jobe’s Organics Granular All Purpose Fertilizer, Easy Plant Care Fertilizer for Vegetables, Flowers, Shrubs, Trees, and Plants, 16 lbs Bag

#2 · Broadest Nutrient Profile

2. True Organic All Purpose

• Weight: 4 lb
• Form: Granules

Best for: Nutrient-specific edible gardens.

Why it ranks #2: This 5-4-5 granule includes calcium and sulfur, lists fruits, vegetables, flowers, and herbs, and covers 87 square feet per 4-pound bag.

A detailed nutrient profile—5% nitrogen, 4% phosphate, 5% potash, plus calcium and sulfur—sets True Organic All Purpose Plant Food apart for gardeners who want more than a broad label. The four-pound bag covers 87 square feet and is listed for fruits, vegetables, flowers, herbs, and foliage.

Of the stated 5% nitrogen, 3.75% is slow-release, linking the nutrient specification to longer-term nitrogen availability. The formula also includes phosphate, potash, calcium, and sulfur, while the listed blend names seabird guano, shrimp and crab shell meal, soybean meal, and fish bone meal. Its stated 87-square-foot coverage helps gauge how far a four-pound bag may go across a planting area. The product is positioned for both edible crops and ornamental plants.

Skip it if you want a stated repeat-feeding schedule; Jobe’s Organics Granular All Purpose Fertilizer lists application every two to three weeks.

This fits gardeners feeding edible crops and flowers who value a declared nutrient profile and coverage figure. Since the supplied information gives no application interval, it is less suited to buyers who need a precise schedule.

Listed on Amazon as: True Organic All Purpose Plant Food – Organic Fertilizer for Fruits, Vegetables, Flowers, and Herbs – 4lb Bag Covers 87 sq. ft.

#3 · Slow-Release Blend

3. Espoma Plant-tone

• Weight: 4 lb
• Form: Granules

Best for: Slow-release landscape feeding.

Why it ranks #3: Its 5-3-3 organic granules are intended for flowers, vegetables, trees, and shrubs, with natural ingredients described as breaking down slowly.

Espoma Plant-tone’s natural organic ingredients break down slowly, creating a long-lasting reservoir of nutrients for flowers, vegetables, trees, and shrubs. Its 5-3-3 formula and Bio-tone enhancement give gardeners a defined nutrient profile for varied plantings, while the listed spring-and-fall timing suits seasonal landscape feeding.

The slow breakdown of natural organics is intended to leave a longer-lasting nutrient reservoir, which can reduce the need to treat this like a frequent-feed product. Its stated uses span annuals, perennials, roses, tomatoes, peppers, squash, lettuce, trees, and shrubs, so one fertilizer can cover beds and landscape plants. The 5-3-3 analysis and Bio-tone formula further define the blend. Directions specifically call out spring and fall for trees and shrubs; the listing is a pack of two four-pound bags.

Skip it if you want a precise every-two-to-four-week liquid routine; Back to the Roots Organic All-Purpose Plant Food provides one.

Pick Plant-tone for mixed flower, vegetable, and landscape plantings where slow nutrient release and seasonal tree-and-shrub feeding fit. Its granular format and listed spring-and-fall guidance suit planned garden care, not a liquid feeding workflow.

Listed on Amazon as: Espoma Organic Plant-Tone 5-3-3 Natural & Organic All Purpose Plant Food; 4 lb. Bag; Organic Fertilizer for All Flowers, Vegetables, Trees, and Shrubs. Pack of 2

#4 · Extended Feeding

4. Burpee Natural Purpose

• Weight: 4 lb
• Form: Granules

Best for: Seed starting and seasonal gardens.

Why it ranks #4: The 4-pound granular food suits vegetables, flowers, herbs, and seed starting, with nutrients released immediately and feeding described for up to three months.

Immediate nutrient release followed by feeding for up to three months gives Burpee Natural Purpose granular food a useful combination for seed starting and established plantings. Its listed uses include vegetables, flowers, herbs, trees, and bedding plants, while calcium, minor nutrients, and beneficial microbes broaden the formula beyond major nutrients.

The product releases major nutrients immediately, then continues feeding for up to three months, so a single application is described as serving both initial and extended feeding needs. Calcium, minor nutrients, and beneficial microbes are also listed as part of its support for soil and plants. Use cases include seed starting, bedding plants, vegetable gardens, flowers, herbs, and trees, making it versatile across stages and plant types. Its granular form suits gardeners applying food directly to soil rather than mixing a liquid concentrate.

Skip it if you need a stated NPK analysis; Down to Earth All Natural Fertilizers Organic Vegetable Garden lists a 4-4-4 ratio.

Burpee suits gardeners who want one granular product for seed starting and a range of seasonal plantings, with feeding stated to continue up to three months. Look elsewhere if a declared nutrient ratio or application rate is essential.

Listed on Amazon as: Burpee Natural Purpose Granular 4-Lb Organic Food for Growing Strong Plants | Good for Vegetable Garden, Flower Garden & Seed Starting, 4 lb, 4lb. Bag

#5

5. Jobe's Organics Granular 4 lb

• Weight: 4 lb
• Form: Granules

Best for: Small organic garden starter.

Why it ranks #5: This 4-pound organic all-purpose granule shares Jobe’s broad garden use and microorganism-focused formula, though its smaller package suits less extensive feeding.

Billions of beneficial archaea distinguish this four-pound Jobe’s Organics granular fertilizer, supporting the breakdown of organic material in soil. The all-purpose formula is intended for vegetables, flowers, shrubs, trees, and plants, making the smaller bag a practical scale for gardeners who want microbial activity without starting with a large quantity.

The listed archaea are described as beneficial microorganisms that aggressively break down organic material, while the product also says it increases microorganism activity for healthier, living soils. Granules can be spread where needed, and granular fertilizers typically have slower-release components that last longer around roots. The four-pound package keeps the quantity manageable for a smaller garden or a first try, though the supplied information does not specify an NPK ratio or a precise feeding interval.

Skip it if you need a stated 4-4-4 analysis; Down to Earth All Natural Fertilizers Organic Vegetable Garden lists that ratio.

Consider this for a small mixed garden where soil microorganism activity is a priority and a four-pound bag suits the scope. Look elsewhere if choosing by a clearly stated nutrient ratio is essential to your routine.

Listed on Amazon as: Jobe’s Organics Granular All Purpose Fertilizer, Easy Plant Care Fertilizer for Vegetables, Flowers, Shrubs, Trees, and Plants, 4 lbs Bag

#6 · Plant-Based Formula

6. Back to the Roots Plant Food

• Weight: 5 lb

Best for: Plant-based soil nutrition.

Why it ranks #6: Its 5-pound blend uses plant and mineral ingredients, including kelp, alfalfa meal, mycorrhizae, and rock phosphate, with directions for dilution in water.

A plant- and mineral-based blend with kelp, alfalfa meal, mycorrhizae, and rock phosphate gives this Back to the Roots plant food a distinctive ingredient profile. It avoids synthetic chemicals and factory-farmed animal waste, while the mycorrhizae are included to promote strong root growth for gardeners seeking plant-based nutrition.

Kelp and alfalfa meal are described as part of a well-balanced blend for long-lasting nutrition, while mycorrhizae support the stated goal of strong root growth. Rock phosphate minerals are included to support hearty harvests, connecting the formula to both root development and crop goals. The directions give a clear liquid-feed routine: mix one tablespoon with one gallon of water and apply every two to four weeks. Gloves and keeping it from children and pets are specified.

Skip it if you want a granular feed shaken onto soil; Miracle-Gro Organic All Purpose Plant Food uses granules mixed into soil.

This suits gardeners seeking plant- and mineral-based ingredients and a measured liquid feeding schedule for varied plants. Choose another format if mixing a tablespoon into water every two to four weeks does not fit your routine.

Listed on Amazon as: Back to The Roots Organic All-Purpose Plant Food (5 lb. Value Size), Premium Blend, Safe & Sustainable Vegan Formulation Made with Kelp and Alfaalfa Meal, Mycorrhize, and Rock Phosphate Minerals

#7

7. Miracle-Gro Organic Plant Food

• Weight: 3.1 lb
• Form: Granules

Best for: Measured garden and pot feeding.

Why it ranks #7: These granules suit outdoor vegetables and flowers, give specific soil and pot application directions, and feed plants for up to three months.

A stated feeding duration of up to three months makes Miracle-Gro Organic All Purpose Plant Food useful for gardeners seeking fewer applications. The granules can be shaken across in-ground soil and mixed into its top one to three inches, or worked through potting soil, with specific coverage guidance for beds and containers.

For garden beds, the directions pair even shaking with mixing into the top one to three inches of soil, then watering to start feeding; this gives a concrete application sequence. The listed coverage is three-quarters to one cup per 20 square feet, while one tablespoon feeds a six-inch potted plant. Those measures help scale treatment between beds and pots. The product is described for outdoor vegetables and flowers, and feeding can last up to three months.

Skip it if you need a fertilizer explicitly described for indoor houseplants; Grow Queen Organic Liquid Indoor Plant Food is labeled for that use.

Choose this for outdoor vegetable and flower beds or potted plants when measured granule application and feeding up to three months fit your schedule. It is a less direct match for indoor-only houseplant care.

Listed on Amazon as: Miracle-Gro Organic All Purpose Plant Food, 3 lb.

#8

8. FOOP Organic Liquid Food

• Weight: 2 lb
• Form: Liquid

Best for: Microbe-infused liquid garden feed.

Why it ranks #8: The liquid is listed for vegetables, herbs, flowers, trees, and shrubs, with nutrients including calcium, magnesium, and silica; 32 ounces makes 32 gallons.

Fish emulsion, kelp, mycorrhizae, and fish manure give FOOP Organic All-Purpose Liquid Plant Food a broad ingredient profile for vegetable and herb gardens, flower beds, trees, and shrubs. The 32-ounce concentrate makes 32 gallons, pairing liquid application with a substantial diluted volume for mixed plantings.

The liquid contains nitrogen, phosphorus, potassium, calcium, magnesium, and silica, supplying a broader named nutrient range than an NPK-only description. Its fish emulsion, kelp, mycorrhizae, and fish manure ingredients connect the formula to soil-enriching microbes and organic nutrient sources. Because the 32-ounce bottle makes 32 gallons, gardeners can prepare diluted feed for multiple areas. The product is listed for indoor and outdoor plants, with use cases ranging from vegetables and herbs to flowers, trees, and shrubs.

Skip it if you prefer granules mixed directly into soil; Miracle-Gro Organic All Purpose Plant Food is applied in that form.

FOOP suits growers feeding mixed indoor or outdoor plantings who want a concentrated liquid with listed microbes and multiple nutrients. It requires dilution, so choose a granular product if soil application is your preferred workflow.

Listed on Amazon as: Organic All-Purpose Liquid Plant Food – Liquid Fertilizer Alternative for Vegetable and Herb Gardens & Flower Beds | Infused with Broad Spectrum of Soil Enriching Microbes (32oz Makes 32 Gallons)

#9

9. Down to Earth 4-4-4

• Weight: 5 lb
• Form: Granules

Best for: Raised beds and vegetable plots.

Why it ranks #9: Its slow-release 4-4-4 granules fit vegetables, herbs, greens, and raised beds, but the listed focus is narrower than broad all-purpose garden use.

A slow-release 4-4-4 formula gives Down to Earth’s five-pound fertilizer a balanced option for vegetables, herbs, greens, and raised beds. Its gradual nutrient delivery is intended to provide longer-lasting support while reducing nutrient leaching, and the directions describe both spring soil preparation and summer application around tomatoes.

For spring planting, the instructions say to prepare the soil, distribute the granules evenly, and mix them into the topsoil, tying application directly to bed preparation. For summer tomatoes, fertilizer goes around the plant base without touching the stem, a useful placement detail for in-season feeding. The 4-4-4 ratio offers balanced nutrition, while the slow-release formula supplies it gradually. The product is also described as safe for beneficial insects, pollinators, pets, and the surrounding ecosystem.

Skip it if you need a fertilizer specifically labeled for indoor tropicals; Grow Queen Organic Liquid Indoor Plant Food names that use.

This is a fitting choice for vegetable gardens and raised beds where soil incorporation in spring or careful summer tomato placement suits the workflow. Its listed plant focus is more specific than a broad indoor-and-outdoor formula.

Listed on Amazon as: Down to Earth All Natural Fertilizers Organic Vegetable Garden – Plant Food for Vegetables, Herbs, Greens and Raised Beds 4-4-4, 5 lb

#10

10. Grow Queen Indoor Food

• Weight: 0.36 kg
• Form: Liquid

Best for: Indoor houseplant liquid feeding.

Why it ranks #10: The 5-5-5 liquid is specifically framed for indoor houseplants and tropicals, making it less suitable as a general outdoor all-purpose fertilizer.

A balanced 5-5-5 liquid formula that can be used at every watering is the defining feature of Grow Queen Organic Liquid Indoor Plant Food. One capful, about four milliliters, mixes into a gallon of water, giving houseplant and tropical growers a repeatable way to feed indoor potted plants.

The equal nitrogen, phosphorus, and potassium ratio provides balanced nutrition, while the sea kelp inclusion adds a named ingredient to the formula. The concentrate’s stated dilution—one capful, about four milliliters, per gallon—makes it easy to incorporate into watering, and the product is described for use at every watering. Its eight-ounce bottle treats up to 50 gallons, a useful concentration for ongoing indoor care. The listing says not to apply it to food crops intended for human or animal consumption.

Skip it if you feed edible vegetables or herbs; FOOP Organic All-Purpose Liquid Plant Food is listed for vegetable and herb gardens.

Choose this for indoor potted houseplants and tropicals if dosing fertilizer through regular watering fits your routine. Its stated exclusion of food crops makes it a poor match for edible indoor gardens.

Listed on Amazon as: Organic Liquid Indoor Plant Food, Houseplant, Tropical & All-Purpose Indoor Plant Fertilizer, Organic Liquid Fertilizer 5-5-5 with Sea Kelp, 8oz Treats 50 Gallons