House & Garden Bio 1-Component, 20 L

A Single-Component Soil Additive for Customizing Magnesium, 20 L

Soil magnesium levels vary a lot from one growing operation to the next, especially in soils naturally heavy in lime, and a fixed-ratio base nutrient doesn't always give growers the flexibility to dial that one element in on its own. House & Garden Bio 1-Component addresses that by isolating magnesium adjustment into a single additive, letting growers customize magnesium levels independently of their base feeding program rather than being locked into whatever ratio a multi-nutrient blend provides.

This 20 L container is sized for growers running a soil-based program at a scale where dialing in magnesium independently is worth the extra step, particularly in soils that run heavy in lime.

Key Features & Benefits

• Single-component magnesium additive — lets growers adjust magnesium levels independently of a fixed-ratio base nutrient
• Useful in lime-heavy soils — addresses soils where lime content affects nutrient availability
• Soil-focused formulation — designed for soil growing rather than hydroponic or coco coir systems
• 20 L container — sized for an ongoing soil-based feeding program

Who Should Use Bio 1-Component

Soil growers who need to fine-tune magnesium levels independently of their base nutrient program, especially in soils that run heavy in lime, will use Bio 1-Component as a targeted addition to their feeding schedule.

About House & Garden

House & Garden is a nutrient and additive brand established in 1990 by William Van De Zwaan, whose family had a background in Dutch horticultural glasshouse production; the company formulates its base nutrients and additives in small batches, filtering its process water through multi-stage ceramic filtration. Hydrofarm acquired House & Garden in 2021, and the brand's manufacturing and research operations are based in Humboldt County, California, building a product line of base nutrient systems and root, flowering, and growth additives sold to growers in dozens of countries.

Frequently Asked Questions

What does Bio 1-Component do?

It's a soil additive that lets growers customize the magnesium level in their soil independently of a fixed-ratio base nutrient. This is particularly useful for soils that are naturally heavy in lime.

Is this product for soil or hydroponic growing?

It's formulated for soil-based growing rather than hydroponic or coco coir systems. Check House & Garden's soil-specific product line for other additives designed to pair with it.

Why would lime-heavy soil need a magnesium additive?

Lime-heavy soils can affect how readily available certain nutrients are to plant roots, and magnesium is one of the elements that can need targeted adjustment in that kind of soil. Bio 1-Component gives growers a way to address that without changing their entire base feeding program.

How do I add Bio 1-Component to my feeding schedule?

Mix it into your feeding water alongside your regular soil nutrient program, following label directions for dosing at your reservoir or watering-can size. Monitor plant response and soil test results to fine-tune the amount over time.

Does Bio 1-Component replace my base nutrients?

No, it's a single-component additive targeted at magnesium adjustment, not a complete base nutrient. Continue running your regular soil feeding program alongside it.