Roots Organics HP2 0-4-0, 1 gal

Extracted Organic Phosphorus Liquid, 0-4-0, 1gal

Phos rock is one of the more concentrated natural phosphorus sources available to growers, but its raw mineral form isn't practical to dose directly into a feeding program. Roots Organics HP2 extracts phosphorus from biogenic phosphate rock and carries it in a 0-4-0 liquid formula, keeping the mineral's nutritional qualities intact while making it simple to measure and apply.

This 1gal size suits regular indoor growers dosing a phosphorus supplement across a season's worth of flowering plants.

Key Features & Benefits

• 0-4-0 NPK ratio — delivers phosphorus without added nitrogen or potassium, for targeted supplementation
• Biogenic phosphate rock source — phos rock is a recognized natural source of available phosphorus
• Minimal processing — extraction is kept light to preserve the nutritional qualities of the source material
• Flowering & fruiting use — phosphorus availability during these stages supports bud and fruit development

Who Should Use Roots Organics HP2

Growers who want a targeted phosphorus boost during flowering and fruiting, without the nitrogen or potassium a full bloom nutrient would add, are the fit for HP2.

About Roots Organics

HP2 is part of the mineral-derived supplement side of the Roots Organics catalog that Aurora Innovations has built out of Eugene, Oregon since 2000, alongside the line's composted soils and amendments.

Frequently Asked Questions

What is the NPK of HP2?

HP2 carries an NPK of 0-4-0, meaning it supplies phosphorus only, with no nitrogen or potassium in the formula. That makes it a targeted addition rather than a complete feed.

What is HP2 derived from?

It's extracted from biogenic phosphate rock, commonly known as phos rock, a natural mineral source of available phosphorus. The extraction process is kept minimal to preserve the source material's nutritional qualities.

When should I use it?

HP2 is intended for the flowering and fruiting stages, when phosphorus demand rises to support bud and fruit development. It's added to an existing program rather than used as a standalone feed.

How processed is the final liquid?

It's minimally processed, which keeps more of biogenic phosphate rock's natural nutrient profile intact than a heavily refined phosphorus source would. That's part of why Roots Organics markets it toward both hobbyist and professional growers looking for a natural-derived option.