Gentlest Organic Starter
Best Organic Seed Starting Fertilizer (2-3-3): The Gentlest Formula for Seedlings, Starts & Transplants — Zero Burn, Maximum Root Establishment Buy on Old Cobblers Farm
Old Cobblers Farm™ Wicked Organics Organic Seed Starter
by Wicked Organics — Littleton, NH
2-3-3
N-P-K Ratio
"The safest organic fertilizer for the most vulnerable stage of plant life. 2-3-3 at seed-starting rates delivers trace-level nutrition that supports germination, root initiation, and first true leaf development without any possibility of salt burn on delicate seedling roots."
2-3-3
Ultra-Gentle NPK
0%
Burn Risk
80 gal
Amended Mix / bag
4 Sizes
5, 10, 15, 20 lbs
Zero Burn Risk for Seedlings
Only 2% nitrogen — the absolute minimum that still provides meaningful nutrition. Impossible to burn seedlings at recommended rates. The safest organic start possible.
3% Phosphorus for Root Initiation
Phosphorus is the first nutrient seedlings need — it drives root cell division and extension. 3% P from bone char provides gentle, sustained root-building nutrition from day one.
Seed Mix Amendment Rate
2–4 tablespoons per gallon of seed starting mix. Pre-amend your entire batch of starting media at once — every cell and tray gets consistent nutrition.
80 Gallons of Mix Per Bag
At 1 oz per gallon, one 5 lb bag amends approximately 80 gallons of seed starting mix. That's hundreds of cell packs from a single bag.
Greensand Trace Minerals
Seedlings need trace minerals from the start — iron, manganese, zinc, boron. Greensand delivers 30+ trace elements that synthetic seed starting mixes completely lack.
Transplant Hole Ready
Same formula works in transplant holes: 1–2 tbsp mixed with backfill soil. Continues the organic nutrition program as seedlings move from trays to garden beds.
NCO Pro-Start — Seed Specialist
Built on North Country Organics Pro-Start — specifically formulated for seed germination and early seedling development in organic growing systems.
Trusted by 20,000+ Growers
Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.
| NPK Ratio | 2-3-3 |
| Derived From | Greensand, Bone Char, Sulfate of Potash, Vegetable Protein Meal (Peanut Meal), Animal Protein Meal, Natural calcium sources (NCO Pro-Start base) |
| Item Form | Granular (fine) |
| Release Speed | Slow-release (biologically driven) |
| Application Rate | 2–4 tbsp / gallon of soil mix | 1–2 tbsp / planting hole | 2–3 lbs / 100 sq ft |
| Method | Mix into seed starting media, incorporate into transplant holes, or broadcast |
| Frequency | 1x at seeding/transplanting (supplemental side-dress optional) |
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb |
| Supports | All seedlings — vegetables, herbs, flowers, starts of all kinds |
| Setups | Seed starting trays, cell packs, peat pots, transplant holes, potting mixes |
What We Love
✓ Zero burn risk — the gentlest organic formula for the most delicate stage
✓ 3% phosphorus from bone char for sustained root initiation
✓ 80 gallons of amended seed mix per bag — hundreds of starts
✓ Greensand delivers 30+ trace minerals synthetics lack
✓ NCO Pro-Start base — purpose-built for seed germination
Worth Noting
— Very low NPK — seedlings will need stronger feeding after transplanting
— Must be mixed into media before seeding — not a top-dress product for starts
Buy on Old Cobblers Farm →
Available in 5 lb | 10 lb | 15 lb | 20 lb
| Feature | Old Cobblers Farm™ Wicked Organics Organic Seed Starter | Starter Mix | Bio-tone Starter Plus | Root Zone Starter Fertilizer | Happy Frog Jump Start Fertilizer | Fast Start Granular Planting Fertilizer | Preplant Starter | Natural Purpose Granular Organic Food | Bio-Tone Starter Plus | Root Zone Starter | Starter Mix | Happy Frog Jump Start | Fast Start Granular | Preplant Starter Food | Organic Starter + Transplanting | Stonington Blend Organic Plant Food | 4-6-4 Plant Food | Natural Organic All Purpose |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPK | 2-3-3 | 3-3-2003 | 4-3-2003 | 2-4-2002 | 3-4-2003 | 4-4-2002 | 4-4-2004 | 4-4-2004 | 4-3-2003 | 2-4-2002 | 3-3-2003 | 3-4-2003 | 4-4-2002 | 4-4-2004 | 3-6-2004 | 5-2-2004 | 4-6-2004 | 4-4-2004 |
| Phosphorus | 3.0% | 3.0% | 3.0% | 4.0% | 4.0% | 4.0% | 4.0% | 4.0% | 3.0% | 4.0% | 3.0% | 4.0% | 4.0% | 4.0% | 6.0% | 2.0% | 6.0% | 4.0% |
| Potassium | 3.0% | 3.0% | 3.0% | 2.0% | 3.0% | 2.0% | 4.0% | 4.0% | 3.0% | 2.0% | 3.0% | 3.0% | 2.0% | 4.0% | 4.0% | 4.0% | 4.0% | 4.0% |
| Form | Granular (fine) | |||||||||||||||||
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb | 5 oz, 4, 8, 18, 25 lb | 1, 4, 12 lb | 1, 5, 25 lb | 4 lb | 4 lb | 4 lb | 1, 4 lb | 4 lb | 5, 20, 40 lb | 4, 8 lb | |||||||
| Release Speed | Slow-release (biologically driven) |
The Competition
Starter Mix
by Down To Earth
3-3-2003
N-P-K
Price$14–$18 / 5 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Bio-tone Starter Plus
by Espoma
4-3-2003
N-P-K
Price$11–$14 / 4 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Root Zone Starter Fertilizer
by Dr. Earth
2-4-2002
N-P-K
Price$12–$15 / 4 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Happy Frog Jump Start Fertilizer
by FoxFarm
3-4-2003
N-P-K
Price$13–$17 / 4 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Fast Start Granular Planting Fertilizer
by Jobe's Organics
4-4-2002
N-P-K
Price$10–$13 / 4 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Preplant Starter
by True Organic
4-4-2004
N-P-K
Price$9–$12 / 4 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Natural Purpose Granular Organic Food
by Burpee
4-4-2004
N-P-K
Price$9–$11 / 4 lb
Wicked Organics has the **lowest/gentlest NPK** in this set at 2-3-3, a genuine differentiator that reduces burn risk for delicate seedlings. Most competitors run 3-3-3 to 4-4-4. Dr. Earth Root Zone (2-4-2) is the closest low-analysis match.
Bio-Tone Starter Plus
by Espoma
4-3-2003
N-P-K
Sizes5 oz, 4, 8, 18, 25 lb
Price~$10-13 (4 lb)
IngredientsBone meal, feather meal, poultry manure, alfalfa, greensand, sulfate of potash; 9 endo+ecto mycorrhizae, 15 bacteria
OrganicOIM (NOT OMRI)
Root Zone Starter
by Dr. Earth
2-4-2002
N-P-K
Sizes1, 4, 12 lb
Price~$10-15 (4 lb)
IngredientsAlfalfa meal, fish bone meal, feather meal, potassium sulfate, soft rock phosphate; TruBiotic + 8 mycorrhizae
OrganicOMRI, CCOF, NOP
Starter Mix
by Down To Earth
3-3-2003
N-P-K
Sizes1, 5, 25 lb
Price~$10-15 (5 lb)
IngredientsAlfalfa meal, fish bone meal, langbeinite, oyster shell, basalt, feather meal, kelp; 4 endomycorrhizal fungi
OrganicOMRI, CDFA
Happy Frog Jump Start
by FoxFarm
3-4-2003
N-P-K
Sizes4 lb
Price~$15-21 (4 lb)
IngredientsAlfalfa meal, feather meal, sulfate of potash, bat guano, kelp, fish meal; mycorrhizal fungi
OrganicOMRI, CDFA
Fast Start Granular
by Jobe's Organics
4-4-2002
N-P-K
Sizes4 lb
Price~$8-12 (4 lb)
IngredientsBone meal, feather meal, processed poultry manure, sulfate of potash; Biozome
OrganicOMRI Listed
Preplant Starter Food
by True Organic
4-4-2004
N-P-K
Sizes4 lb
Price~$13 (4 lb)
IngredientsPoultry manure, seabird guano, fish bone meal, soybean meal, sulfate of potash, crab/shrimp shell; 6% humic acid
OrganicOMRI, ISO 22000
Organic Starter + Transplanting
by Burpee
3-6-2004
N-P-K
Sizes1, 4 lb
Price~$8-12 (4 lb)
IngredientsTurkey litter compost, bone meal; mycorrhizae and beneficial microbes
OrganicOMRI Listed
Stonington Blend Organic Plant Food
by Coast of Maine
5-2-2004
N-P-K
Sizes4 lb
Price~$16-22 (4 lb)
IngredientsLobster & crab shell meal, fish meal, kelp, worm castings, composted poultry manure
OrganicOMRI, MOFGA
4-6-4 Plant Food
by Sustane
4-6-2004
N-P-K
Sizes5, 20, 40 lb
Price~$12-18 (5 lb)
IngredientsComposted turkey litter, feather meal, bone meal, sulfate of potash
OrganicOMRI, WSDA
Natural Organic All Purpose
by Burpee
4-4-2004
N-P-K
Sizes4, 8 lb
Price~$8-12 (4 lb)
IngredientsComposted turkey litter, bone meal, feather meal, sulfate of potash; beneficial microbes
OrganicOMRI Listed
Zero Burn Risk for Seedlings
Only 2% nitrogen — the absolute minimum that still provides meaningful nutrition. Impossible to burn seedlings at recommended rates. The safest organic start possible.
3% Phosphorus for Root Initiation
Phosphorus is the first nutrient seedlings need — it drives root cell division and extension. 3% P from bone char provides gentle, sustained root-building nutrition from day one.
Seed Mix Amendment Rate
2–4 tablespoons per gallon of seed starting mix. Pre-amend your entire batch of starting media at once — every cell and tray gets consistent nutrition.
80 Gallons of Mix Per Bag
At 1 oz per gallon, one 5 lb bag amends approximately 80 gallons of seed starting mix. That's hundreds of cell packs from a single bag.
Common Questions
