Best Organic Fruit Tree Fertilizer (10-2-8): High Nitrogen & Potassium for Canopy Growth, Fruit Quality & Organic Orchard Management Buy on Old Cobblers Farm
Old Cobblers Farm™ Wicked Organics Fruit Tree Fertilizer
by Wicked Organics — Littleton, NH
10% Nitrogen for Canopy Health
Fruit trees need a dense, healthy leaf canopy for photosynthesis — the engine that sizes and sweetens fruit. 10% organic N sustains strong canopy growth without synthetic push.
8% Potassium for Premium Fruit
Potassium drives Brix (sugar content), red skin color, flesh firmness, and cold-storage longevity. The difference between grocery-store fruit and farm-stand quality.
Per-Tree Trunk Diameter Dosing
½–1 lb per inch of trunk diameter, broadcast under the drip line. Simple measurement-based application that scales precisely to tree size and age.
Slow-Release Through Fruit Season
Animal protein releases nitrogen through microbial activity over weeks — feeding steadily from bud break through fruit sizing without the burn risk of synthetic N.
Sulfur, Calcium & Iron
Secondary nutrients from langbeinite and natural sources support chlorophyll, cell structure, and enzyme activity. Complete tree nutrition beyond just NPK.
5–10 Trees Per Bag
One 5 lb bag feeds 5–10 medium fruit trees depending on trunk diameter. Backyard orchardists need just one or two bags per season.
All Fruit Tree Species
Apple, pear, peach, cherry, plum, apricot, nectarine, fig, persimmon — every deciduous fruit tree benefits from the high-N, high-K organic profile.
Trusted by 20,000+ Growers
Developed in Littleton, New Hampshire. Sold nationwide on Amazon, Walmart, eBay, and theoldcobblersfarm.com.
| NPK Ratio | 10-2-8 |
| Derived From | Cooked and dehydrated animal by-products, Potassium Magnesium Sulfate, Natural mineral sources (Nature Safe base) |
| Item Form | Granular |
| Release Speed | Slow-release (biologically driven) |
| Application Rate | ½–1 lb / inch trunk diameter (spring) | 5–10 lbs / 1,000 sq ft (orchard floor) |
| Method | Broadcast under drip line |
| Frequency | 1–2x per season (spring + optional post-harvest) |
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb |
| Supports | Apple, pear, peach, cherry, plum, apricot, nectarine, fig, persimmon, all fruit trees |
| Setups | Orchards, backyard fruit trees, espalier, dwarf and semi-dwarf trees, containers |
| Feature | Old Cobblers Farm™ Wicked Organics Fruit Tree Fertilizer | Jobe's Organics Fruit & Citrus Fertilizer | Jobe's Organics Fruit & Citrus Fertilizer | Tree-Tone | Fruit Tree Mix | Fruit & Nut Granular | Natural Wonder Fruit Tree | Fruit & Nut Tree Food | Happy Frog Fruit & Flower | Fruit, Citrus & Vine Food | Citrus-Tone | Fruit, Citrus & Berry | Citrus & Fruit Plant Food |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NPK | 10-2-8 | 2005-03-05 00:00:00 | 2005-03-05 0:00:00 | 6-3-2002 | 6-2-2004 | 3-5-2005 | 5-5-2002 | 5-4-2004 | 4-9-2003 | 7-4-2002 | 5-2-2006 | 6-4-2002 | 3-5-2005 |
| Phosphorus | 2.0% | 5.0% | 5.0% | 3.0% | 2.0% | 5.0% | 5.0% | 4.0% | 9.0% | 4.0% | 2.0% | 4.0% | 5.0% |
| Potassium | 8.0% | 5.0% | 5.0% | 2.0% | 4.0% | 5.0% | 2.0% | 4.0% | 3.0% | 2.0% | 6.0% | 2.0% | 5.0% |
| Form | Granular | Granular spikes / granular | Granular spikes / granular | ||||||||||
| Sizes | 5 lb | 10 lb | 15 lb | 20 lb | 4 lb / spikes | 4 lb / spikes | 4, 8, 18, 36 lb | 5, 15, 25, 50 lb | 4, 16 lb | 1, 4, 12, 25 lb | 4, 12 lb | 4, 18 lb | 4, 15 lb | 4, 8, 18, 27 lb | 4, 12, 25, 40 lb | 3.5 lb |
| Release Speed | Slow-release (biologically driven) | Slow | Slow |
Jobe's Organics Fruit & Citrus Fertilizer
Jobe's Organics Fruit & Citrus Fertilizer
Tree-Tone
Fruit Tree Mix
Fruit & Nut Granular
Natural Wonder Fruit Tree
Fruit & Nut Tree Food
Happy Frog Fruit & Flower
Fruit, Citrus & Vine Food
Citrus-Tone
Fruit, Citrus & Berry
Citrus & Fruit Plant Food
10% Nitrogen for Canopy Health
Fruit trees need a dense, healthy leaf canopy for photosynthesis — the engine that sizes and sweetens fruit. 10% organic N sustains strong canopy growth without synthetic push.
8% Potassium for Premium Fruit
Potassium drives Brix (sugar content), red skin color, flesh firmness, and cold-storage longevity. The difference between grocery-store fruit and farm-stand quality.
Per-Tree Trunk Diameter Dosing
½–1 lb per inch of trunk diameter, broadcast under the drip line. Simple measurement-based application that scales precisely to tree size and age.
Slow-Release Through Fruit Season
Animal protein releases nitrogen through microbial activity over weeks — feeding steadily from bud break through fruit sizing without the burn risk of synthetic N.
