Organic Tomato & Vegetable Formula

Best Organic Tomato Fertilizer (5-3-4): Slow-Release Natural Nutrition for Flavor-First Tomatoes & Vegetables Buy on Old Cobblers Farm

Organic tomatoes taste better — and this formula is why. Natural protein meals and minerals release nutrients through soil biology at the pace plants actually use them. No salt burn, no flush-and-crash, no synthetic aftertaste. Just steady, biologically-driven nutrition that produces tomatoes with real flavor.

Updated April 2026 17 Products Compared By the Old Cobblers Farm Team

Old Cobblers Farm™ Wicked Organics Organic Garden and Tomato

by Organic Fertilizer — Littleton, NH

5-3-4
N-P-K Ratio
"The organic tomato grower's formula. 5-3-4 from natural protein meals and minerals feeds through microbial activity — producing the slow, steady nutrition that develops the complex sugars and acids that give organic tomatoes their superior flavor."
5-3-4
Organic NPK
Bio
Biologically-Driven Release
250 ft²
Coverage / 5 lb bag
4 Sizes
5, 10, 15, 20 lbs
🍅

Flavor-First Organic Feeding

Slow biological release develops the complex sugars, organic acids, and flavor compounds that make organic tomatoes taste noticeably better than synthetically-fed fruit. Flavor starts in the soil.

🌱

Transplant-to-Harvest Program

1–2 tablespoons in the planting hole at transplant, then 2–3 oz per plant monthly through harvest. A complete organic feeding program in one product.

🦠

Builds Living Soil

Protein meals feed the soil food web — bacteria, fungi, protozoa — that make nutrients available to roots naturally. Healthier soil = healthier plants = better tomatoes.

⏳

Biologically-Timed Release

Nutrients release when soil microbes are active — which is when plants are growing. Cold soil = slow release. Warm soil = faster release. Nature matches supply to demand.

🫑

All Garden Vegetables

Not just tomatoes — peppers, squash, cucumbers, eggplant, melons, and every garden vegetable thrives on this organic formula. One product for the entire organic garden.

📦

170–250 sq ft Per Bag

At 2–3 lbs per 100 sq ft broadcast, one bag covers a standard bed. Per-plant side-dressing at 2–3 oz monthly stretches further.

✅

NCO Pro-Gro Base — Organic Approved

Built on North Country Organics Pro-Gro. All natural inputs approved for NOP-compliant organic production. No synthetics, no sewage sludge.

🇺🇸

Trusted by 20,000+ Growers

Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.

NPK Ratio5-3-4
Item FormGranular
Coverage170–250 sq ft (broadcast) per 5 lb bag
CategoryOrganic Fertilizer
TypePlant-Specific Organic
Sizes5 lb | 10 lb | 15 lb | 20 lb
NPK5-3-4
Nitrogen5% (protein meals)
Phosphorus3% (phosphate rock)
Potassium4% (sulfate of potash)
FormGranular
Rate2–3 lbs / 100 sq ft or 1–2 tbsp / hole
MethodBroadcast, planting hole, or monthly side-dress
Sizes5, 10, 15, 20 lb bags
Best ForOrganic tomatoes, peppers, squash, all garden vegetables
What We Love
✓ Organic slow release produces superior tomato flavor
✓ Complete transplant-to-harvest feeding program
✓ Feeds soil biology — builds long-term garden health
✓ Works for all garden vegetables, not just tomatoes
✓ NCO Pro-Gro base — proven professional organic formula
Worth Noting
— Lower NPK than synthetic formulas — need more product per area
— Slow release — apply at planting, don't wait for deficiency symptoms
Buy on Old Cobblers Farm →
Available in 5 lb | 10 lb | 15 lb | 20 lb
Feature Old Cobblers Farm™ Wicked Organics Organic Garden and Tomato Old Cobblers Farm Plant-tone All Purpose Plant Food Espoma All Purpose Granular Plant Food Jobe's Organics All Purpose Mix Down To Earth Performance Organics All Purpose Plant Nutrition Miracle-Gro Happy Frog All Purpose Fertilizer FoxFarm Stonington Blend Organic Plant Food Coast of Maine Organic & Natural All Purpose Plant Food Whitney Farms Garden-Tone Espoma Plant-Tone Espoma Vegetable Garden Down To Earth Home Grown Tomato, Veg & Herb Dr. Earth Premium Gold All Purpose Dr. Earth All Purpose Granular Jobe's Organics Happy Frog All-Purpose FoxFarm All Purpose Plant Food True Organic Natural Organic All Purpose Burpee 4-6-4 All Natural Plant Food Sustane
NPK 5-3-4 5-3-3 4-4-4 4-6-2 11-3-8 6-4-5 5-2-4 9-2-6 3-4-4 5-3-3 4-4-4 4-6-3 4-4-4 4-4-4 6-4-5 5-4-5 4-4-4 4-6-4
Form Granular — — — — — — — — — — — — — — — — —
Coverage 170–250 sq ft (broadcast) per 5 lb bag Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed Not listed
Price / Size 5 lb | 10 lb | 15 lb | 20 lb $8–$10 / 4 lb; $15–$16 / 8 lb $8.50 / 4 lb; $17.80 / 16 lb $15–$16 / 5 lb $8.46 / 1 lb; $14–$16 / 3 lb $15–$20 / 4 lb $19–$32 / 4 lb $10–$14 / 4 lb ~$7.69 (4 lb) ~$11 (4 lb) ~$12-15 (5 lb) ~$10-12 (4 lb) ~$12-15 (4 lb) ~$8-10 (4 lb) ~$12-16 (4 lb) ~$10-14 (4 lb) ~$10-13 (4 lb) ~$12-15 (5 lb)
Our Take The organic tomato grower's formula. 5-3-4 from natural protein mea... **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. **Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option. — — — — — — — — — —
The Competition

Plant-tone All Purpose Plant Food

by Espoma
5-3-3
N-P-K
Price$8–$10 / 4 lb; $15–$16 / 8 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

All Purpose Granular Plant Food

by Jobe's Organics
4-4-4
N-P-K
Price$8.50 / 4 lb; $17.80 / 16 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

All Purpose Mix

by Down To Earth
4-6-2
N-P-K
Price$15–$16 / 5 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

Performance Organics All Purpose Plant Nutrition

by Miracle-Gro
11-3-8
N-P-K
Price$8.46 / 1 lb; $14–$16 / 3 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

Happy Frog All Purpose Fertilizer

by FoxFarm
6-4-5
N-P-K
Price$15–$20 / 4 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

Stonington Blend Organic Plant Food

by Coast of Maine
5-2-4
N-P-K
Price$19–$32 / 4 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

Organic & Natural All Purpose Plant Food

by Whitney Farms
9-2-6
N-P-K
Price$10–$14 / 4 lb
**Espoma Plant-tone (5-3-3) is virtually identical** in NPK and is the market leader. Coast of Maine Stonington Blend (5-2-4) is the premium competitor. Jobe's offers the best budget option.

Garden-Tone

by Espoma
3-4-4
N-P-K
Sizes4, 8, 18, 36 lb
Price~$7.69 (4 lb)
IngredientsFeather meal, poultry manure, bone meal, alfalfa, greensand, sulfate of potash; Bio-tone
OrganicOIM Registered

Plant-Tone

by Espoma
5-3-3
N-P-K
Sizes4, 8, 18, 27, 36, 50 lb
Price~$11 (4 lb)
IngredientsFeather meal, poultry manure, cocoa meal, bone meal, cottonseed meal, greensand; Bio-tone
OrganicOIM Registered

Vegetable Garden

by Down To Earth
4-4-4
N-P-K
Sizes1, 5, 15, 25 lb
Price~$12-15 (5 lb)
IngredientsFish bone meal, alfalfa, feather meal, langbeinite, basalt, potassium sulfate, dolomite, kelp
OrganicOMRI, CDFA

Home Grown Tomato, Veg & Herb

by Dr. Earth
4-6-3
N-P-K
Sizes1, 4, 12, 25 lb
Price~$10-12 (4 lb)
IngredientsFish bone meal, alfalfa, feather meal, potassium sulfate, kelp; TruBiotic + mycorrhizae
OrganicOMRI, CCOF, NOP

Premium Gold All Purpose

by Dr. Earth
4-4-4
N-P-K
Sizes4, 12, 25 lb
Price~$12-15 (4 lb)
IngredientsFish bone meal, alfalfa, fish meal, potassium sulfate, kelp; TruBiotic + mycorrhizae
OrganicOMRI, CCOF, NOP

All Purpose Granular

by Jobe's Organics
4-4-4
N-P-K
Sizes1.5, 4, 6, 8, 16 lb
Price~$8-10 (4 lb)
IngredientsFeather meal, bone meal, processed poultry manure, sulfate of potash; Biozome
OrganicOMRI Listed

Happy Frog All-Purpose

by FoxFarm
6-4-5
N-P-K
Sizes4, 18, 50 lb
Price~$12-16 (4 lb)
IngredientsFeather meal, fish meal, bat guano, sulfate of potash, humic acid; 20 species beneficial microbes
OrganicOMRI, CDFA

All Purpose Plant Food

by True Organic
5-4-5
N-P-K
Sizes4, 8, 12, 25 lb
Price~$10-14 (4 lb)
IngredientsPoultry manure, seabird guano, fish bone meal, soybean meal, sulfate of potash, crab/shrimp shell
OrganicOMRI, CDFA

Natural Organic All Purpose

by Burpee
4-4-4
N-P-K
Sizes4, 8 lb
Price~$10-13 (4 lb)
IngredientsComposted turkey litter, bone meal, feather meal, sulfate of potash; beneficial microbes
OrganicOMRI Listed

4-6-4 All Natural Plant Food

by Sustane
4-6-4
N-P-K
Sizes5, 20, 25, 50 lb
Price~$12-15 (5 lb)
IngredientsComposted turkey litter, feather meal, bone meal, sulfate of potash; 50% organic matter
OrganicOMRI, WSDA

🍅

Flavor-First Organic Feeding

Slow biological release develops the complex sugars, organic acids, and flavor compounds that make organic tomatoes taste noticeably better than synthetically-fed fruit. Flavor starts in the soil.

🌱

Transplant-to-Harvest Program

1–2 tablespoons in the planting hole at transplant, then 2–3 oz per plant monthly through harvest. A complete organic feeding program in one product.

🦠

Builds Living Soil

Protein meals feed the soil food web — bacteria, fungi, protozoa — that make nutrients available to roots naturally. Healthier soil = healthier plants = better tomatoes.

⏳

Biologically-Timed Release

Nutrients release when soil microbes are active — which is when plants are growing. Cold soil = slow release. Warm soil = faster release. Nature matches supply to demand.

Common Questions