HEAVY 16 Finish, 55 gal

A Final-Flush Additive for the Last Week Before Harvest, 55 Gallon

Nutrient salts that build up in the root zone through a full feeding cycle can affect the flavor and burn quality of the finished crop if they're not addressed before harvest. HEAVY 16 Finish is a final-flush additive built to support electrochemical and nutrient balance in soil or media, run during the last week before harvest in place of the regular feeding program.

This 55 gallon bottle is sized for a commercial operation feeding multiple rooms, replacing the standard nutrient solution for that final week to help clear excess salts from the root zone.

Key Features & Benefits

• Final-flush formulation — supports electrochemical and nutrient balance in soil or media
• Timed for the last week before harvest — run in place of the regular feeding program during that window
• Helps clear excess root-zone salts — addresses buildup accumulated over a full feeding cycle
• Works across soil and media types — not limited to a single growing system
• 55 Gallon size — sized for a commercial operation feeding multiple rooms

Who Should Use HEAVY 16 Finish

Growers finishing out a crop who want to address nutrient salt buildup in the last week before harvest, in soil or in other growing media, will run HEAVY 16 Finish in place of their regular feed for that final stretch.

About HEAVY 16

HEAVY 16 was formulated by Bryce Patterson, a Cal Poly-trained horticulturist based in Signal Hill, California, around three principles: high-grade raw ingredients, complex chemistry that simplifies application, and micro-batch blending for consistency. The line is built as a streamlined system — Bud A/B and Veg A/B base nutrients (both built with four calcium forms), plus Prime, Fire, Finish, Roots, and Foliar — designed to work across soil, coco, and hydroponic systems without a long list of separate additives.

Frequently Asked Questions

When should I start using Finish?

Finish is meant to be run during the last week before harvest, replacing the regular feeding solution for that window rather than being layered on top of it. Starting it earlier than the final week isn't necessary, since its role is specific to pre-harvest flushing.

How is Finish different from a plain water flush?

Finish is formulated to support electrochemical and nutrient balance in the root zone, rather than simply diluting it the way plain water does. That balance-focused approach is the reason growers use a dedicated flush product instead of water alone.

Does Finish work in both soil and other media?

Yes, it's built to support electrochemical and nutrient balance across soil and other growing media rather than being tied to one substrate. Application rate stays consistent regardless of the media type.

Do I stop using my other HEAVY 16 products during the Finish week?

Yes, Finish replaces the regular feeding program, including Bud A/B or other base nutrients, for that final week rather than being added on top of them. Resume the regular program only if you're not harvesting on schedule.

What happens to nutrient salts left in the root zone if I skip a pre-harvest flush?

Residual nutrient salts left in the root zone at harvest can affect the flavor and burn quality of the finished product, which is the reason a dedicated final-week flush is a common step. Finish is formulated specifically to address that balance during the last week.