Flower and vegetable garden fertiliser calculator

New to the range? Start here. Tell us what you are growing and the area, and we size a recipe from the Seacliff products with live prices and a one-click cart. For a lab-report-driven plan use the Market garden soil planner.

Product guide and budget

Tell us what you're growing and we'll build your recipe.

1

What are you growing?

2

How much area?

3

Soil & Amendment Details

4

Optional extras

Include pH amendment

Superfine AgLime

Raises soil pH. For acidic soils below pH 6.0. ~37% Ca.

Broadcast evenly and allow 1-2 weeks before planting.

Gypsum

pH neutral Ca & S. For clay/sodic soils. ~23% Ca, 18% S.

Can be applied same time as base recipe.

Elemental Sulphur

Lowers soil pH. For alkaline soils above pH 7.0.

Requires microbial activity to convert, so allow 8-12 weeks before planting.
Your recipe appears hereChoose a crop and an area, then calculate. You will see the cost per square metre, the smallest bags that cover your area, and how far any leftover goes.

Your Custom Recipe

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Application Instructions

    These recipes are dialled in for Seacliff products. If you use other products, check their analysis and particle size to make sure they are genuinely comparable.

    Rates are based on standard agronomic targets for organic growing and are dialled in for Seacliff products. If you use other products, check that they are genuinely comparable. Soil tests always recommended for precise nutrient management.