House & Garden Multi Zen, 5 L

Growth Formulation Additive for Consistent Harvests, 5 L

A base nutrient program covers the core feeding needs of a growth cycle, but growers running House & Garden's system often add targeted formulations on top of that base to support consistency from one harvest to the next. Multi Zen is layered onto an existing feeding schedule as an additional growth formulation additive rather than used as a standalone product, sized at 5 L.

This 5 L size is sized for a grower running a larger indoor setup that needs Multi Zen on hand across a full growing cycle.

Key Features & Benefits

• Distinct Growth Formulation — A dedicated additive formulated for harvest-time support rather than a general-purpose base feed.
• Used With Base Nutrients — Added alongside a base nutrient program rather than used as a standalone feed.
• Supports Every Harvest — Intended for repeated use across successive growing cycles.
• Available Across a Size Range — Offered from 250 ml up to 1000 L to match hobby-scale through large commercial operations.

Who Should Use Multi Zen

Growers already running a House & Garden base nutrient program who want an additional harvest-time additive will find Multi Zen useful as a supplement to their existing 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

Can Multi Zen be used on its own?

No, Multi Zen is designed to be used alongside a base nutrient program rather than as a standalone feed. It is formulated to layer onto an existing feeding schedule.

When is Multi Zen typically used?

It is used throughout the growth cycle alongside a base nutrient program, supporting consistent development through to harvest. Growers running a full House & Garden feeding schedule add it as one component of that program.

What size options does Multi Zen come in?

Multi Zen is offered from 250 ml bottles for hobby-scale use up to 1000 L totes for large commercial operations. Choosing a size comes down to how many plants and how many cycles the grower is feeding.

Is Multi Zen a standalone nutrient?

No, it supplements an existing base nutrient program rather than replacing it. Growers continue running their regular feeding schedule and add Multi Zen on top of it.

How does Multi Zen fit into a House & Garden feeding schedule?

It is added alongside the base nutrients and other House & Garden additives already in a grower's program, rather than swapped in for any of them. Following the base program's schedule while layering in Multi Zen keeps feeding consistent across a cycle.