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Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer – Organic Gardening

High-performance 10-2-8 organic all-season fertilizer with 90% slow-release nitrogen. Steady feeding spring through fall. OMRI Listed. Old Cobblers Farm.

Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer – Organic Gardening

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OUR STORY

Wicked Organics 10-2-8 All Season is a premium organic fertilizer formulated from four natural inputs: Feather Meal, Meat and Bone Meal, Blood Meal, and Sulfate of Potash. It delivers the highest combined NPK content in the Wicked Organics line — 20% total nutrients per pound.

The guaranteed analysis shows: Total Nitrogen 10.00% (0.25% Ammoniacal, 9.00% Water Insoluble from feather meal and meat & bone meal, 0.75% Other Water Soluble), Available Phosphate 2.00%, Soluble Potash 8.00%, Calcium 1.80%, and Sulfur 3.00%.

The defining characteristic is the 9.00% water-insoluble nitrogen — the highest slow-release nitrogen fraction in the organic lineup. This nitrogen releases gradually through microbial decomposition, providing weeks of steady nutrition from each application. The high potassium content (8%) from sulfate of potash is equally important, supporting the metabolic functions that keep plants vigorous through heat, drought, and traffic stress. The low phosphorus (2%) is intentional — many established turf and landscape sites have adequate phosphorus, making additional P unnecessary and environmentally responsible to minimize.

NPK

10-2-8

Type

Organic

Derived From

Feather Meal, Meat and Bone Meal, Blood Meal, and Sulfate of Potash. Also provides: Calcium (Ca) 1.80%, Sulfur (S) 3.00%.

Best For

Brand

Wicked Organics

NPK Breakdown

N

10.0% Total Nitrogen (0.25% Ammoniacal, 9.00% Water Insoluble, 0.75% Other Water Soluble) — the highest total nitrogen in the Wicked Organics line, with 90% in slow-release water-insoluble form for steady, season-long feeding from feather meal and meat & bone meal.

P

2.0% Available Phosphate (P2O5) — moderate phosphorus to support root formation and establishment without excess buildup in soils that already have adequate phosphorus levels.

K

8.0% Soluble Potash (K2O) — the highest potassium level in the Wicked Organics line, from sulfate of potash, improving metabolic function, drought tolerance, color retention, and overall plant vigor.

What Is It ?

10-2-8 Organic All Season Fertilizer is a high-performance organic nutrient blend formulated to provide steady feeding through the entire growing season. With the highest nitrogen (10%) and potassium (8%) levels in the Wicked Organics lineup, this product delivers reliable nutrition for both cool- and warm-season turf while also enhancing general landscape plantings. The formula is derived entirely from natural inputs — feather meal, meat & bone meal, blood meal, and sulfate of potash. More than 9.00% of the total nitrogen is in the form of slowly available water-insoluble nitrogen, which releases gradually through microbial activity in the soil. This slow-release profile greatly reduces the risk of nitrogen flushes, leaching, or burn while providing consistent color and growth from spring through fall. The 8% potassium component improves metabolic function, drought tolerance, and helps maintain turf density and color under stress. Secondary nutrients include 1.80% calcium and 3.00% sulfur for enhanced plant metabolism. Old Cobblers Farm™ Wicked Organics 10-2-8 All Season is the premium organic choice for turf managers, landscapers, and growers who want maximum performance from an organic program.

When To Apply ?

Apply 5-10 lbs per 1,000 sq ft, delivering 0.50-1.00 lb of actual nitrogen per 1,000 sq ft. Apply during active growth periods for best results — for cool-season grasses, this means spring and fall primarily; for warm-season grasses, late spring through summer. Water in after application to begin activating microbial breakdown of the slow-release nitrogen. Nutrient uptake and overall response are enhanced when used in conjunction with core aeration. For landscape beds, broadcast around ornamental plantings at similar rates. The higher nitrogen analysis means less product per 1,000 sq ft compared to lower-analysis organics like 4-3-3 or 5-3-4, reducing handling and application time.

How to Apply ?

1. Calculate Area

Calculate area to be treated in square feet for accurate application rate.

2. Application Rate

Apply 5–10 lbs per 1,000 sq ft. Use the lower rate for maintenance, higher rate for recovery or new establishment.

3. Broadcast

Broadcast evenly using spreader equipment for uniform coverage across the treatment area.

4. Timing

For best results, apply during active growth periods when plants and turf can immediately use available nutrients.

5. Water In

Water in after application to begin nutrient activation and microbial breakdown of organic components.

6. Aeration Boost

Performance is enhanced when used with core aeration, which opens channels for nutrients to reach roots.

7 Broadcast

Broadcast evenly using spreader equipment for uniform coverage across the treatment area.

How To Store

Store in a dry environment. Natural product. Wear gloves if skin sensitivities appear. Wear approved respirator if sensitive to dust. Eye protection optional. Wash hands after use. Keep away from water sources.

FAQs

1. What is organic 10-2-8 fertilizer?

Organic 10-2-8 is a high-nitrogen, moderate-potassium organic fertilizer made from natural ingredients including vegetable and animal protein meals, sulfate of potash, and bone char. The 10% nitrogen fuels vigorous growth, 2% phosphorus supports root health, and 8% potassium enhances disease resistance and fruit quality. Unlike synthetic fertilizers, the nutrients release slowly as soil microbes break down the organic ingredients, providing steady feeding over weeks without the risk of burn. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer is ideal for organic vegetable gardens, flower beds, and container plantings.

2. What can I use organic 10-2-8 fertilizer on?

Organic 10-2-8 is versatile enough for most garden plants. Its higher nitrogen content makes it especially effective for leafy vegetables (lettuce, kale, spinach), herbs, container plantings, and any crops in their vegetative growth stage. The moderate potassium supports fruiting vegetables like tomatoes and peppers as well. It works well in raised beds, traditional gardens, containers, and even as a lawn fertilizer for organic lawn care programs. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer is OMRI-Listed for certified organic production and suitable for all garden applications.

3. How does organic fertilizer work differently than synthetic?

Organic fertilizers like 10-2-8 release nutrients gradually as soil microorganisms break down the natural ingredients. This slow-release action provides steady nutrition over weeks to months, reducing the risk of nutrient burn and leaching. Organic fertilizers also feed the soil biology, improving soil structure, water retention, and long-term fertility. Synthetic fertilizers deliver nutrients immediately in plant-available form for quick results but do not build soil health. Many growers combine both approaches. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer builds soil health while delivering meaningful nutrition through natural, slow-release ingredients.

4. How often should I apply organic fertilizer?

Apply organic fertilizer like 10-2-8 every 4–8 weeks during the growing season, depending on the crop and soil conditions. Because organic fertilizers release nutrients slowly, they last longer per application than synthetics but may take 1–2 weeks to become fully available. For heavy feeders like tomatoes and corn, apply every 4–6 weeks. For lighter feeders and perennials, every 6–8 weeks is sufficient. Incorporate into the top few inches of soil and water in. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer provides sustained nutrition with each application for less frequent refeeding.

5. Is organic 10-2-8 safe for edible gardens?

Yes, organic 10-2-8 is made entirely from natural ingredients and is safe for use on all edible crops including vegetables, herbs, fruits, and root crops. It contains no synthetic chemicals, heavy metals, or artificial additives. It is OMRI-Listed, meaning it meets the strict standards of the Organic Materials Review Institute for use in certified organic production. You can apply it right up to harvest time without concerns about chemical residues. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer is trusted by organic gardeners who prioritize food safety and soil health.

6. What ingredients are in Wicked Organics 10-2-8?

Wicked Organics 10-2-8 is formulated from vegetable protein meals, animal protein meals, natural sulfate of potash, and bone char. These ingredients provide a broad spectrum of nutrients beyond just NPK — including calcium, sulfur, and trace minerals that support plant health and soil biology. Vegetable and animal protein meals are the primary nitrogen sources, releasing nitrogen slowly as soil microbes decompose the organic matter. Sulfate of potash provides chloride-free potassium. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer uses only high-quality, OMRI-Listed natural ingredients.

7 Can I use organic fertilizer in containers?

Yes, organic fertilizer works well in containers and raised beds. For container plantings, mix 1–2 tablespoons of 10-2-8 per gallon of soil at planting and top-dress every 4–6 weeks during the growing season. Because containers lack the soil biology of in-ground gardens, organic fertilizers may release nutrients slightly slower in pots. To jumpstart the process, ensure containers have active, healthy soil with compost. Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer provides gentle, sustained feeding that is safe for even the most sensitive container plants.