House & Garden Magnesium Boost, 1 L

Magnesium and Nitrogen Additive for Extended Vegetative Growth, 1 L

Larger-leafed varieties and extended vegetative programs place heavier demand on magnesium and nitrogen than a standard base feed always supplies, and a shortfall in either nutrient shows up as pale or yellowing foliage before growth itself slows. Magnesium Boost supplies additional magnesium and nitrogen on top of a base nutrient program to help keep chlorophyll production running through a longer vegetative window.

Packaged in a 1 L bottle, this size fits a home or small commercial grower layering Magnesium Boost onto an existing feeding program rather than dosing a large-scale operation.

Key Features & Benefits

• Supplies Magnesium and Nitrogen — Adds two nutrients central to chlorophyll production on top of a base feeding program.
• Supports Extended Vegetative Growth — Formulated for growers running longer vegetative phases before switching to flowering.
• Benefits Larger-Leafed Varieties — Aimed at varieties with larger leaf structure that place higher demand on chlorophyll-related nutrients.
• Layers Onto a Base Program — Designed to be added to an existing nutrient schedule rather than used as a standalone feed.

Who Should Use Magnesium Boost

Growers running larger-leafed varieties or extended vegetative phases who want to support chlorophyll production, or who notice pale or yellowing foliage despite a standard base feed, will find this additive useful.

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 Magnesium Boost supply?

Magnesium Boost supplies additional magnesium and nitrogen on top of a base nutrient program. Both nutrients are central components of chlorophyll, the pigment that drives photosynthesis.

When should I start using Magnesium Boost?

It is typically introduced during vegetative growth, particularly for larger-leafed varieties or extended vegetative programs where chlorophyll demand runs higher. It layers onto an existing feeding schedule rather than replacing it.

Does Magnesium Boost replace my base nutrients?

No, it is designed to supplement a base nutrient program rather than stand in for it. Continue running your regular feeding schedule and add Magnesium Boost on top of it.

Why do magnesium and nitrogen matter for leaf color?

Both nutrients are structural components of chlorophyll, so a shortfall in either one commonly shows up as pale or yellowing foliage before other growth problems appear. Supplying additional magnesium and nitrogen helps support consistent chlorophyll production.

Is this additive meant for every plant variety?

It is aimed specifically at larger-leafed varieties or growers running extended vegetative phases, where chlorophyll demand is higher than average. Smaller-leafed varieties on a standard vegetative timeline may not need the extra dose.