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Granular soil amendment
SiliCal Soil
1 kg
Milled wollastonite soil amendment — calcium plus plant-available silica for beds and pots.
- Slow-release calcium + silica
- Raises soil pH comparably to ag-lime
- Work into soil before planting
$22.00
Other sizes
How much do I need?
As a rough guide, granular is worked into soil before planting; field rates are set from a soil test (it behaves much like ag-lime, at a slightly higher rate). Tell us your crop and acreage and we’ll suggest a rate — free. Get a rate recommendation.
Free shipping over $75.00 CAD. See the science & safe-use notes.