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Product Overview
Description
Wicked Growth Fall Bulb Fertilizer provides the phosphorus and potassium-focused nutrition that fall-planted bulbs need to develop strong root systems before winter and produce spectacular spring blooms. The 5-10-10 formula delivers exactly what dormant bulb establishment requires.
Fall-planted bulbs have a narrow window to develop roots before frozen soil halts growth. They need phosphorus for root development, potassium for cold tolerance and energy storage, but minimal nitrogen that would stimulate unwanted leaf growth.
Essential for tulips, daffodils, hyacinths, crocuses, alliums, and all spring-flowering bulbs planted in fall. Ensures your bulbs develop the root systems they need for spectacular spring displays.
Highlights
• Low N for fall planting
• High P-K for root development
• Winter hardiness support
• All spring bulb types
• Root establishment focus
The Science Behind It
How It Works
This bulb-specific formula provides the phosphorus and potassium emphasis that fall-planted bulbs need to establish strong root systems before winter. Low nitrogen (5%) prevents soft fall growth vulnerable to freeze damage. High phosphorus (10%) drives rapid root development during the fall establishment window. Elevated potassium (10%) builds cold hardiness and helps bulbs survive winter dormancy. Applied at planting, nutrients support root growth through fall and position bulbs for spring emergence.
The Science
Fall-planted bulbs (tulips, daffodils, hyacinths) must develop extensive root systems before soil temperatures drop below the threshold for root growth. Phosphorus is critical for root cell division and elongation during this brief window. Potassium improves cold tolerance by regulating cellular osmotic potential, preventing freeze damage to developing roots and bulb tissue. Low nitrogen avoids stimulating top growth that would be killed by frost and weaken the bulb.
Nutrients Available
5% Total Nitrogen – Minimal to prevent vulnerable fall growth. 10% Available Phosphate (P₂O₅) – Maximizes root establishment before winter. 10% Soluble Potash (K₂O) – Builds winter hardiness and supports spring emergence. Essential fall nutrition for tulips, daffodils, crocuses, and all spring-flowering bulbs.
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.