All products
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
1
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.
Pairs well with
Add a fast foliar boost between soil applications
SiliFol Concentrate
1 L
Plant-available liquid silica for foliar spray or soil drench. Great for gardeners and trial plots.
$28.00per bottle
SiliFol Concentrate
5 L
The market-garden size. Covers a season of foliar passes across mixed beds and tunnels.
$120.00per jug