Jack’s ClassiCote 15-8-23 with Crystal Green Time-Release Fertilizer

Jack’s ClassiCote 15-8-23 with Crystal Green is a premium controlled-release fertilizer designed to provide steady, reliable plant nutrition for up to 4 months. Packaged in a 2 lb shaker bottle or 25 lb bag, this professional-grade fertilizer delivers a balanced 3-1-2 nutrient ratio with added micronutrients to support healthy foliage, strong roots, improved plant vigor, and consistent growth in lawns, shrubs, garden beds, landscape plants, and containers.

Formulated with Crystal Green technology, this fertilizer includes a highly pure, sustainable source of phosphorus and magnesium designed to improve nutrient efficiency while helping reduce environmental nutrient runoff. Its controlled-release design feeds plants gradually in small, manageable amounts, helping reduce the risk of fertilizer burn when applied according to label directions.

Jack’s ClassiCote is an excellent choice for growers, landscapers, garden centers, and home gardeners looking for long-lasting nutrition in a convenient, easy-to-apply granular fertilizer.

Key Features & Benefits

• Premium time-release fertilizer with a 15-8-23 analysis
• Provides continuous feeding for up to 4 months
• Balanced 3-1-2 nutrient ratio supports overall plant health
• Includes Crystal Green technology for sustainable phosphorus and magnesium
• Helps promote lush green foliage and strong root development
• Contains added micronutrients including iron, manganese, and magnesium
• Controlled-release formula feeds plants gradually over time
• Helps reduce the risk of fertilizer burn when used as directed
• Ideal for lawns, shrubs, gardens, landscapes, and containers
• Excellent for professional growers, landscapers, and serious gardeners
• Convenient 2 lb shaker bottle or 25 lb bag for larger applications and repeat use

Guaranteed Analysis

• 15% Nitrogen
• 8% Available Phosphate
• 23% Soluble Potash

Enhanced with micronutrients to support healthy color, nutrient uptake, and strong plant performance.

Ideal For

• Lawns
• Shrubs
• Landscape beds
• Garden beds
• Container plants
• Nursery stock
• Outdoor ornamentals
• Patio planters
• Trees and shrubs
• Professional landscape maintenance
• Greenhouse and nursery production

Long-Lasting 4-Month Feeding

Jack’s ClassiCote 15-8-23 is designed to release nutrients gradually over time, giving plants a steady supply of nutrition without the frequent reapplication required by fast-release fertilizers. This makes it a convenient option for busy gardeners, landscapers, and growers who want dependable feeding over an extended period.

Powered by Crystal Green Technology

Crystal Green provides a sustainable source of phosphorus and magnesium in a highly pure crystalline form. This technology helps improve nutrient availability while supporting more efficient plant feeding and reducing unnecessary nutrient loss.

Supports Strong Roots & Green Growth

The 15-8-23 formula provides nitrogen for rich green foliage, phosphorus for root development, and potassium for overall plant strength, stress tolerance, and vigor. Added micronutrients such as iron and manganese help support healthy color and balanced growth.

Safer Controlled-Release Feeding

Because nutrients are released in small, controlled amounts, ClassiCote helps provide a higher safety margin compared to quick-release fertilizers. When applied at recommended rates, it supports steady growth while helping reduce the risk of overfeeding or fertilizer burn.

Professional-Grade Fertilizer for Everyday Growing

Whether you are maintaining landscapes, feeding container plants, fertilizing shrubs, or supporting garden beds, Jack’s ClassiCote 15-8-23 with Crystal Green delivers long-lasting, efficient nutrition in one easy-to-use fertilizer.