Sulfate Of Potash

Give plants targeted potassium support for root development and overall vigor without turning routine feeding into a complicated program. Sulfate of potash is useful when your regular fertilizer needs an extra potassium boost.
Use it alongside your normal feeding program as directed rather than as a complete stand-alone fertilizer.
Made by growers
More than a bottle on a shelf.
- Talk to real plant people. The team that mixes the formula answers your email.
- Made in-house, in the USA. Every bottle mixed and filled by us, not a third party.
- We're growers, not resellers. We use this on our own plants before it ships.
- Bundle savings only here. Pair any two TPS formulas — your order ships free.
Sulfate of potash provides targeted potassium to support root development and overall plant vitality. Use it when plants need additional potash without turning routine feeding into a complicated program.