Roots Organics CalMag, 5 Gallon

What does Roots Organics CalMag do for plants?

Roots Organics CalMag is a pure, all-natural liquid blend of calcium, magnesium, and sulfur formulated to support plants during periods of fast growth and heavy feeding. The formula contains no added nitrogen, phosphate, or potassium, so growers can address calcium and magnesium deficiencies without disrupting their primary nutrient ratios.

Why would a grower choose a CalMag supplement with no added nitrogen or potassium?

Roots Organics CalMag is designed without added nitrogen, phosphate, or potassium so growers retain full control over their primary fertility program. Adding calcium and magnesium through a separate, targeted supplement prevents unintended nutrient imbalances that can occur when CalMag products also carry significant N-P-K loads.

Which types of plants benefit most from Roots Organics CalMag?

Roots Organics CalMag is ideal for fast-growing and heavy-feeding plants that have elevated calcium and magnesium demands. These plant types are especially prone to secondary nutrient deficiencies during peak growth stages, making a dedicated calcium-magnesium-sulfur supplement particularly useful.

Is Roots Organics CalMag compatible with hydroponic systems as well as soil grows?

Yes, Roots Organics CalMag is suitable for both hydroponic and soil applications. The liquid formula integrates into a wide range of growing setups where calcium and magnesium supplementation is needed.

What base fertilizers pair well with Roots Organics CalMag?

Roots Organics recommends using Roots Organics CalMag alongside high-quality base fertilizers such as Roots Organics Buddha Grow and Roots Organics Buddha Bloom. Pairing the CalMag supplement with these base nutrients helps ensure plants receive complete nutrition through vegetative and flowering stages.

Is Roots Organics CalMag an organic-based product, and does it carry OMRI certification?

Roots Organics CalMag is classified as an organic-based, all-natural liquid nutrient supplement. The product does not currently carry OMRI certification, so growers with strict OMRI requirements should verify compliance with their specific program before use.