Jack's Professional 15-5-15 +CaMg LX Fertilizer | 25lb (80/PL)

Comprehensive 15-5-15 Formula with Calcium and Magnesium, +CaMg LX

Water that runs low in calcium and magnesium usually means dosing those nutrients separately, one more thing to manage in a feeding program. Jack's Professional 15-5-15 +CaMg LX is a truly comprehensive formulation containing all the macro and micro nutrients, with 4% calcium and 2% magnesium already built in.

25lb (80/PL), basic 69 lbs. CCE, 3.72% urea.

Key Features & Benefits

• 4% calcium and 2% magnesium included — ideal for use with water that's naturally low in those nutrients.
• 80% nitrate nitrogen — supports a comprehensive macro and micronutrient formulation.
• Peat-lite level of micronutrients — matched micronutrient concentration for general production growing.
• Basic formula, 69 lbs. CCE — gently raises growing media pH over time, useful with acidic irrigation water.

Who Should Use This +CaMg LX Formula

This fits growers working with irrigation water that's naturally low in calcium and magnesium who want those nutrients built into their core feed rather than dosed separately.

About the LX Fertilizer Series

Jack's Professional LX-series formulas like this +CaMg blend are engineered around specific water-chemistry challenges, in this case low calcium and magnesium content, rather than serving as an interchangeable general-purpose feed.

Frequently Asked Questions

Why would I choose a formula with added calcium and magnesium?

This +CaMg formula contains 4% calcium and 2% magnesium built in, making it an ideal choice when the irrigation water source is naturally low in those two nutrients. Rather than dosing calcium and magnesium separately, this formula folds them into the core feed.

How much nitrate nitrogen does this formula provide?

It's formulated with 80% nitrate nitrogen, a comprehensive macro and micronutrient formulation designed to cover general plant nutrition needs across a wide range of crops. That high nitrate share is a notable feature of this specific LX blend.

Will this fertilizer raise or lower my growing media pH?

It's a basic formula rated at 69 lbs. CCE, meaning it will gently raise growing media pH over repeated applications. That basicity makes it a useful counterbalance for growers working with naturally acidic irrigation water.

What micronutrient level does this formula use?

It contains a peat-lite level of micronutrients, the standard micronutrient concentration used across general commercial production. That level is calibrated for typical peat-based growing media rather than a specialty substrate.