House and Garden Soil A and B | Two-Part Base for Soil Gardens

What Soil A and B Assumes About Your Medium

A base nutrient is written against a medium, and this one assumes an enriched soil that already holds a meaningful amount of magnesium. That is the whole reason a separate soil formulation exists rather than one bottle for every situation. Feed a soil mix with a coco formulation and you push magnesium the medium was already supplying. Part A reads 0.2 percent total nitrogen, split as 0.16 percent nitrate and 0.04 percent ammoniacal, with 0.2 percent soluble potash alongside it. The inputs are calcium nitrate, ammonium nitrate, nitric acid and potassium hydroxide. Those figures look small because this is a heavy dilution concentrate rather than a ready to use feed. The working range runs from half a millilitre to five millilitres per litre of each part, or roughly two to eighteen millilitres per gallon. Where you sit inside that range follows the stage of growth and what the pot is actually telling you.

Mixing the House and Garden Two-Part Base

The sequence here is not optional. Fill the reservoir with fresh water, add part A, mix it through and let it stand. Then add part B, mix again and let it stand a second time. The two parts must never meet in concentrate. Calcium from one and sulfate or phosphate from the other will form a solid and settle out. That precipitate is nutrition your plants will never reach, and it also blocks emitters. Always use equal volumes of A and B, since the balance of the formulation depends on it. Set the tank to a pH of 6.3 once both parts are in, and do that before any stimulant or additive goes near it. Soil buffers the tank less predictably than an inert medium, so check the meter rather than trusting yesterday's number. The rest of this range drops in on top without a compatibility question.

Key Features

• Built For Soil: The formulation assumes an enriched medium already carrying a meaningful amount of magnesium.
• Equal Parts A And B: The balance of the feed depends on both parts going in at the same volume every time.
• Wide Working Range: Half a millilitre to five millilitres per litre of each part covers the whole cycle.
• Named Inputs: Derived from calcium nitrate, ammonium nitrate, nitric acid and potassium hydroxide.
• Set pH At 6.3: The target is set once both parts are in and before any stimulant is added.
• Never Mix Concentrates: Keeping A and B apart until they are in the tank is what stops calcium dropping out.

Technical Specifications