Cz Garden Supply Calcium Nitrate 15.5-0-0 Fertilizer — 18 lb Greenhouse Grade, Water-Soluble Calcium & Nitrogen

Cz Garden Calcium Nitrate 15.5-0-0 is a high-purity, water-soluble nitrogen and calcium fertilizer formulated for greenhouse, hydroponic, and garden use to encourage strong vegetative growth.

This greenhouse-grade 18 lb pouch supplies soluble calcium and nitrate nitrogen that many growers choose to support vigorous leaves, stems and overall plant structure. Manufactured in the USA, the powder dissolves cleanly for use in hydroponic reservoirs, drip systems, soil mixes and container gardens. It arrives in a resealable heavy-duty bag so you can measure, store and reuse without mess.

How will this fertilizer fit into my hydroponic or drip system?

Cz Garden Calcium Nitrate dissolves fully in water, making it compatible with most closed or open hydroponic systems and common irrigation setups. Use it as part of a complete nutrient program, following a feeding schedule or mixing instructions suited to your crop.

• Water-soluble formula that avoids oily residues and clogs.
• Compatible with DWC, NFT, ebb-and-flow, drip irrigation and tower gardens.
• Works well alongside base nutrients that supply potassium, phosphorus and micronutrients.

How do I mix and apply the 15.5-0-0 calcium nitrate safely?

Measure by weight or volume according to your crop’s needs and dissolve the powder thoroughly in clean water before adding other concentrated feeds. Avoid mixing undiluted with incompatible products; always add to water and stir until fully clear.

• Dissolve completely in warm water for faster solution time.
• Follow a crop-specific feed chart; start with lower concentrations for seedlings.
• Use clean tanks and filters to prevent buildup and ensure even distribution.

What benefits can I expect for vegetables and fruiting plants?

Providing both nitrate-nitrogen and calcium supports leaf growth while contributing calcium to developing tissues. That combination is commonly used by growers who want healthy canopy development and reduced risk of calcium-related fruit disorders when nutrients are balanced across the program.

• Supplies 15.5% nitrogen for green growth and vigor.
• Provides 19% calcium to aid structural plant needs.
• Helps maintain nutrient availability when integrated into a complete feeding schedule.

How does packaging and product quality stand out?

Cz Garden packages this fertilizer in a resealable 18 lb pouch to protect product freshness and simplify measuring. The product is manufactured in the USA to greenhouse-grade specifications to minimize impurities often found in lower-grade alternatives.

• Heavy-duty resealable pouch for secure storage between uses.
• Greenhouse-grade purity reduces residue and equipment deposits.
• Made in the USA from selected raw materials for consistent performance.

Who is this for: Growers who run greenhouse operations, hobby hydroponic gardeners, and outdoor vegetable or fruit producers looking for a reliable source of soluble calcium and nitrate-nitrogen will benefit from Cz Garden Calcium Nitrate 15.5-0-0. It’s suited to users who value a clean-dissolving, high-purity input that integrates with drip lines, reservoirs and soil programs. If your goal is predictable mixing, clear solutions and the convenience of resealable packaging, this 18 lb greenhouse-grade fertilizer is designed to fit into that workflow.