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Product Overview
Description
Wicked Growth Apple Tree Fertilizer delivers the high-potassium, zero-phosphorus nutrition mature apple trees require for heavy fruit production, superior fruit quality, and disease resistance. The 6-0-16 formula is specifically designed for established trees in phosphorus-adequate soils.
Apple trees have specific nutritional patterns. Mature, bearing trees benefit most from elevated potassium that improves fruit size, color, sweetness, and storage quality. The zero-phosphorus formulation prevents excess accumulation.
Essential for backyard apple trees, cider orchards, and commercial apple production where fruit quality is paramount. The fruit-focused formula that produces prize-winning apples.
Highlights
• High potassium fruit formula
• Zero phosphorus for P-rich soils
• Improves fruit size & color
• Disease resistance support
• All apple varieties
The Science Behind It
How It Works
This apple-specific formula delivers nitrogen for tree growth and high potassium for fruit quality without added phosphorus. Established orchard soils often have adequate phosphorus, making additional P unnecessary or even problematic. The 6% nitrogen maintains healthy foliage for photosynthesis while the 16% potassium directly improves apple size, color development, sugar content, and storage life. Applied in spring, this formula supports the entire growing season through harvest.
The Science
Apple trees have moderate nitrogen needs—too much promotes vegetative growth at the expense of fruiting and increases disease susceptibility. Potassium is the key nutrient for apple quality, affecting fruit size through cell expansion, color development through anthocyanin synthesis, and flavor through sugar accumulation. The 6-0-16 ratio reflects these priorities. Omitting phosphorus prevents the accumulation that occurs in established orchards and avoids antagonistic effects on micronutrient uptake.
Nutrients Available
6% Total Nitrogen – Maintains healthy foliage without excessive shoot growth. 0% Phosphorus – Prevents P accumulation in adequately supplied orchard soils. 16% Soluble Potash (K₂O) – Maximizes apple size, color, sweetness, and storage quality. Formulated for established apple orchards and home fruit trees.
How to Apply
1-2 lbs/100 sq ft every 4-6 weeks. Severe deficiency: 2-3 lbs initially.
1
Action:
Survey garden bed and note deficiency symptoms. Map high-need zones.
Pro Tip:
Sandy areas and fruiting sections need more K than shaded areas.
Avoid:
Don't leave granules on surface in hot weather - damages plants.
2
Action:
Calculate 1-2 lbs per 100 sq ft. For 10x20 garden (200 sq ft), use 2-4 lbs.
Pro Tip:
Weigh fertilizer on kitchen scale. One cup 0-0-60 weighs ~0.5 lb.
Avoid:
Don't exceed 2 lbs per 100 sq ft per application. Split heavy doses.
3
Action
Broadcast granules evenly across soil surface. Work into top 2-3 inches with cultivator.
Pro Tip:
Sandy areas and fruiting sections need more K than shaded areas.
Avoid:
Don't spread on windy days - granules drift causing uneven application.
4
Action
Water thoroughly with 1-2 inches to dissolve granules and move K into root zone.
Pro Tip:
Incorporation prevents salt buildup and gets K to roots faster.
Avoid:
Don't leave granules on surface in hot weather - damages plants.