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

Old Cobblers Farm™ Wicked Organics 10-2-8 All-Season Fertilizer — Steady Growth, Lasting Results

Elevate your garden, lawn, and landscape with Old Cobblers Farm™ Wicked Organics 10-2-8 Fertilizer, a high-performance organic blend designed to feed your plants throughout the growing season. Ideal for both warm- and cool-season turf, but also perfect for trees, shrubs, and landscape beds, this formula gives reliable nutrition without the risk of burn or leaching. If you’ve searched for “organic fertilizer for all-season lawn feeding,” “slow release garden fertilizer for summer stress,” or “10-2-8 organic fertilizer for tomatoes and shrubs,” this is built for those needs.

Guaranteed Analysis & How It Works

Total Nitrogen (N): 10.00%
 • Includes ~9.00% water-insoluble (slow-release) nitrogen, releasing as soil microbes become active.
 • ~0.75% water-soluble nitrogen for initial green-up.

Available Phosphate (P₂O₅): 2.00% — helps root development, flowering initiation, and establishment.

Soluble Potash (K₂O): 8.00% — supports strong plant cell walls, enhances drought stress tolerance, and contributes to vibrant color.

Added Calcium & Sulfur (~1.80% Ca, ~3.00% S) — secondary nutrients that further boost plant resilience and soil structure.

This blend uses natural inputs (feather meal, meat & bone meal, blood meal, sulfate of potash) to deliver slow, steady feeding. Because most of the nitrogen is in the water-insoluble form, it helps prevent sharp nitrogen spikes, reducing risk of burn and leaching. Studies show that slow-release nitrogen fertilizers improve soil health, reduce leaching, and support balanced plant growth. 

Key Benefits You’ll See

Season-long feeding: Supplies nutrients steadily so plants stay green and vigorous from early spring through late season.

Stronger root establishment: With lower phosphorous high enough to support root growth for cool/cold starts and early planting.

Improved performance under stress: The higher potassium content helps turf, vegetables, and ornamentals resist drought, heat, or foot traffic.

Reduced risk of fertilizer burn: Due to slow-release nature, there’s less chance of overfeeding, which is especially helpful on sensitive plants.

Healthier soil ecology: Organic materials feed beneficial microbes, improving soil structure, moisture retention, and overall long-term fertility.

Where & How to Use

Ideal Applications:

All-season lawn maintenance for both warm-season and cool-season grasses.

Landscape beds, trees & shrubs, ornamentals seeking steady nutrition.

Vegetable gardens, especially where sustained growth is needed (e.g. for leafy greens, fruiting plants).

Application Rates & Timing:

Apply 5.00 – 10.00 lbs per 1,000 sq. ft. to deliver roughly 0.50-1.0 lb actual nitrogen per 1,000 sq. ft.

Best applied during periods of active growth (spring, early summer) and again as needed if growth slows.

Performance is notably improved if used in conjunction with core aeration (for lawns) to allow nutrients to reach roots more effectively.

Tips:

Water in after application to move nutrients into the root zone.

Avoid over-fertilization by doing a soil test first, particularly checking for existing nitrogen, potassium, and soil pH.

Break up large applications into two timed feedings rather than one heavy dose for better results and lower risk.

Why Choose Wicked Organics 10-2-8?

Delivers organic, slow-release nitrogen, which is increasingly recognized by experts as beneficial for lawns and plants because of even growth, less risk, and environmental safety. 

A versatile formula reliable for both seasonal lawn care and landscape/ornamental gardening.

Natural blend with added secondary nutrients makes it more than just N-P-K—supports overall plant resilience.

Trusted by gardeners who want sustainable, long-lasting nutrition without synthetic chemical inputs.