Calcium Nitrate
Type: Synthetic Release: Fast NPK: 15.5-0-0 (+Ca)
Provides readily available nitrogen and calcium to support cell walls and prevent blossom-end rot.
🎯 What It's Best For
- tomatoes
- peppers
- leafy greens
- hydroponics
🚫 Not Ideal For
- mixing directly with phosphates or sulfates in concentrate
🧪 Application & Dosage
Method: Dissolve and water soil or use foliar; avoid mixing incompatible stocks.
Rate: Per label; common soil drench 1–2 g per L
Timing: During flowering/fruiting and active growth
Frequency: Every 2–4 weeks or per label
⚖️ Soil & pH
Soil pH Preference: broad
⚠️ Cautions
Raises EC; avoid overuse in pots.
🛒 Where to Buy
- plant nurseries
- hydroponic shops
- garden centers
🏷️ Tags
calciumnitrogenblossom-end rot
Note
Values are typical approximations. Always follow your specific product label and adjust for pot size, plant type, and local weather. In containers, flush with plain water occasionally to prevent salt buildup.