When it comes to fighting off your turf’s winter blues, look no further than Sierrablen® Plus Stress Control 4-5M. Treat your turfgrass to a controlled 4-5 month nutrient release thanks to ICL’s patented Poly-S and PACE technologies. With its nitrogen only released under optimum growing conditions, you will be pre-stress conditioning your turf for the harsher conditions ahead. Promote strong, healthy-looking plants with lush green swards from spring onwards thanks to added levels of potassium and magnesium.