Gentle Starter + High-Yield Formula

Best Organic Starter Fertilizer for High-Yield Crops (2-3-3): Ultra-Gentle Multi-Ingredient Blend for Root Establishment & Steady Production Buy on Old Cobblers Farm

When you need organic nutrition gentle enough for seeds and transplants but complex enough for season-long crop production, 2-3-3 delivers. Six natural ingredients — greensand, bone char, sulfate of potash, peanut meal, animal protein, and calcium — provide the most diverse nutrient foundation in the organic lineup.

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

Old Cobblers Farm™ Wicked Organics 2-3-3 Fertilizer – High-Yield Crops

by Organic Fertilizer — Littleton, NH

2-3-3
N-P-K Ratio
"The most ingredient-diverse organic formula available. Six natural inputs deliver balanced 2-3-3 NPK with trace minerals from greensand, slow-release P from bone char, potassium from sulfate of potash, and protein-based N from peanut and animal meal. NCO Pro-Start base — gentle enough for seeds, complete enough for harvest."
2-3-3
Ultra-Gentle NPK
6
Natural Ingredients
250 ft²
Coverage / 5 lb bag
4 Sizes
5, 10, 15, 20 lbs
🌱

Ultra-Gentle for Seeds & Transplants

Only 2% nitrogen — the gentlest organic blend in the lineup. Safe for direct seed contact, seedling roots, and fresh transplants without any burn risk whatsoever.

🧪

6-Ingredient Diversity

Greensand + bone char + sulfate of potash + peanut meal + animal protein + calcium. The most ingredient-diverse formula delivers the broadest spectrum of nutrients from multiple natural sources.

🪨

Greensand Trace Minerals

Greensand contributes 30+ trace minerals plus long-term potassium and soil structure improvement. Nutrients that single-ingredient organic products simply can't provide.

🔥

Bone Char Slow-Release P

Phosphorus from bone char releases over months through the stable carbon matrix — providing sustained root-building nutrition far longer than standard bone meal.

📦

170–250 sq ft Per Bag

At 2–3 lbs per 100 sq ft broadcast, one bag covers a standard bed. For per-plant side-dressing, 2–4 oz monthly stretches further.

🥕

High-Yield Crop Program

The "high-yield" designation means this formula supports crops through the entire production cycle — from root establishment through heavy fruiting and continuous harvest.

✅

NCO Pro-Start Base — Proven

Built on North Country Organics Pro-Start — formulated specifically for crop establishment and season-long production in organic farming systems.

🇺🇸

Trusted by 20,000+ Growers

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

NPK Ratio2-3-3
Item FormGranular
Coverage170–250 sq ft per 5 lb bag
CategoryOrganic Fertilizer
TypeGeneral Purpose Organic
Sizes5 lb | 10 lb | 15 lb | 20 lb
NPK2-3-3
Nitrogen2% (protein meals)
Phosphorus3% (bone char)
Potassium3% (sulfate of potash + greensand)
IngredientsGreensand, Bone Char, Sulfate of Potash, Peanut Meal, Animal Protein, Calcium
BaseNCO Pro-Start
FormGranular
Rate2–3 lbs / 100 sq ft or 2–4 oz / plant monthly
Sizes5, 10, 15, 20 lb bags
Best ForSeeds, transplants, high-yield crops, new bed establishment
What We Love
✓ Ultra-gentle 2% N — safe for seeds, seedlings, and fresh transplants
✓ 6-ingredient diversity delivers broadest organic nutrient spectrum
✓ Greensand trace minerals + bone char slow-release P
✓ NCO Pro-Start base — designed for crop establishment
✓ Supports entire production cycle from planting through harvest
Worth Noting
— Very low NPK (8% total) — heavy feeders need supplemental N mid-season
— More product per area needed vs. higher-analysis organic formulas
Buy on Old Cobblers Farm →
Available in 5 lb | 10 lb | 15 lb | 20 lb
Feature Old Cobblers Farm™ Wicked Organics 2-3-3 Fertilizer – High-Yield Crops Old Cobblers Farm Garden-tone Herb & Vegetable Food Espoma Home Grown Tomato, Vegetable & Herb Fertilizer Dr. Earth Vegetable & Tomato Plant Food Jobe's Organics Vegetable Garden Fertilizer Down To Earth Happy Frog Tomato & Vegetable Fertilizer FoxFarm Fish & Seaweed Blend (liquid) Neptune's Harvest Super Plant Food Organic Fertilizer Fertrell Garden-Tone Espoma Vegetable Garden Down To Earth Vegetable & Tomato Jobe's Organics Root Zone Starter Dr. Earth Happy Frog Tomato & Vegetable FoxFarm Plant-Tone Espoma Super Plant Food Fertrell 4-6-4 Natural & Organic Plant Food Sustane Organic Tomato & Vegetable Burpee Tomato & Vegetable Food True Organic
NPK 2-3-3 3-4-4 4-6-3 2-5-3 4-4-4 5-7-3 2-3-1 3-2-3 3-4-4 4-4-4 2-5-3 2-4-2 5-7-3 5-3-3 3-2-3 4-6-4 3-6-4 4-5-6
Form Granular — — — — — — — — — — — — — — — — —
Coverage 170–250 sq ft 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 $13–$16 / 8 lb $10–$14 / 4 lb ~$7 / 4 lb $15–$16 / 5 lb $16–$20 / 4 lb $21–$22 / 36 oz $14.95 / 10 lb ~$8-10 (4 lb) ~$14-18 (5 lb) ~$7-14 (4 lb) ~$13-16 (4 lb) ~$13-17 (4 lb) ~$8-10 (4 lb) ~$14-16 (10 lb) ~$14-18 (5 lb) ~$8-10 (4 lb) ~$10-14 (4 lb)
Our Take The most ingredient-diverse organic formula available. Six natural ... Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format. — — — — — — — — — —
The Competition

Garden-tone Herb & Vegetable Food

by Espoma
3-4-4
N-P-K
Price$13–$16 / 8 lb
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Home Grown Tomato, Vegetable & Herb Fertilizer

by Dr. Earth
4-6-3
N-P-K
Price$10–$14 / 4 lb
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Vegetable & Tomato Plant Food

by Jobe's Organics
2-5-3
N-P-K
Price~$7 / 4 lb
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Vegetable Garden Fertilizer

by Down To Earth
4-4-4
N-P-K
Price$15–$16 / 5 lb
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Happy Frog Tomato & Vegetable Fertilizer

by FoxFarm
5-7-3
N-P-K
Price$16–$20 / 4 lb
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Fish & Seaweed Blend (liquid)

by Neptune's Harvest
2-3-1
N-P-K
Price$21–$22 / 36 oz
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Super Plant Food Organic Fertilizer

by Fertrell
3-2-3
N-P-K
Price$14.95 / 10 lb
Jobe's Organics Veg & Tomato (2-5-3) and Fertrell Super Plant Food (3-2-3) are the closest low-analysis competitors. Neptune's Harvest (2-3-1 liquid) is almost identical in NPK but differs in format.

Garden-Tone

by Espoma
3-4-4
N-P-K
Sizes4, 8, 18, 27, 36 lb
Price~$8-10 (4 lb)
IngredientsFeather meal, poultry manure, bone meal, alfalfa, greensand, sulfate of potash; Bio-tone
OrganicOIM Registered

Vegetable Garden

by Down To Earth
4-4-4
N-P-K
Sizes1, 5, 15, 25, 50 lb
Price~$14-18 (5 lb)
IngredientsFish bone meal, alfalfa meal, feather meal, langbeinite, basalt, potassium sulfate, dolomite, kelp
OrganicOMRI, CDFA

Vegetable & Tomato

by Jobe's Organics
2-5-3
N-P-K
Sizes1.5, 4, 16 lb
Price~$7-14 (4 lb)
IngredientsFeather meal, bone meal, processed poultry manure, sulfate of potash; Biozome
OrganicOMRI Listed

Root Zone Starter

by Dr. Earth
2-4-2
N-P-K
Sizes1, 4, 12, 25 lb
Price~$13-16 (4 lb)
IngredientsAlfalfa meal, fish bone meal, feather meal, potassium sulfate, rock phosphate, kelp; TruBiotic
OrganicOMRI, CCOF, NOP

Happy Frog Tomato & Vegetable

by FoxFarm
5-7-3
N-P-K
Sizes4, 18, 50 lb
Price~$13-17 (4 lb)
IngredientsBone meal, feather meal, sulfate of potash, mycorrhizal fungi; added calcium
OrganicOMRI, CDFA

Plant-Tone

by Espoma
5-3-3
N-P-K
Sizes4, 8, 18, 27, 36, 50 lb
Price~$8-10 (4 lb)
IngredientsFeather meal, poultry manure, bone meal, alfalfa, greensand, sulfate of potash; Bio-tone
OrganicOIM Registered

Super Plant Food

by Fertrell
3-2-3
N-P-K
Sizes10, 25, 50 lb
Price~$14-16 (10 lb)
IngredientsPeanut meal, calcium carbonate, feather meal, bone charcoal, kelp, crab meal, sulfur
OrganicOrganic-approved

4-6-4 Natural & Organic Plant Food

by Sustane
4-6-4
N-P-K
Sizes5, 20, 50 lb
Price~$14-18 (5 lb)
IngredientsComposted turkey litter, feather meal, bone meal, sulfate of potash; humus-rich
OrganicOMRI, WSDA

Organic Tomato & Vegetable

by Burpee
3-6-4
N-P-K
Sizes4 lb
Price~$8-10 (4 lb)
IngredientsComposted turkey litter; calcium, magnesium, sulfur, iron, manganese
OrganicOMRI Listed

Tomato & Vegetable Food

by True Organic
4-5-6
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; 6% calcium
OrganicOMRI, CDFA

🌱

Ultra-Gentle for Seeds & Transplants

Only 2% nitrogen — the gentlest organic blend in the lineup. Safe for direct seed contact, seedling roots, and fresh transplants without any burn risk whatsoever.

🧪

6-Ingredient Diversity

Greensand + bone char + sulfate of potash + peanut meal + animal protein + calcium. The most ingredient-diverse formula delivers the broadest spectrum of nutrients from multiple natural sources.

🪨

Greensand Trace Minerals

Greensand contributes 30+ trace minerals plus long-term potassium and soil structure improvement. Nutrients that single-ingredient organic products simply can't provide.

🔥

Bone Char Slow-Release P

Phosphorus from bone char releases over months through the stable carbon matrix — providing sustained root-building nutrition far longer than standard bone meal.

Common Questions