J Nitro Premier Wicket

Top-rated perennial ryegrass cultivars enhanced with ProNitro® for exceptional density, wear tolerance & County-quality cricket squares

J Nitro Premier Wicket is Johnsons’ highest-performing enhanced cricket square renovation mixture, combining the elite cultivar line-up of J Premier Wicket with the added power of ProNitro® hydroactive seed treatment. Trusted by grounds teams at county and professional level, this advanced mixture delivers:​ ProNitro® ensures that each seed is coated with a targeted supply of controlled-release nitrogen and moisture-reactive technology. This delivers exceptional early growth even in difficult conditions, such as dry soils, heavy compaction, rolling stress or low temperatures. Combined with four top-rated perennial ryegrasses bred for fine leaf texture, high shoot density, exceptional wear tolerance and clean cutting at 2mm, J Nitro Premier Wicket produces a firm, true and visually outstanding cricket playing surface at the highest level.

  • High Performance for County & Professional Squares
  • Outstanding Shoot Denity & Recovery
  • Fine Leaf Quality & Clean Cutting
  • High Disease Resistance & Stress Tolerance

Cultivars % STRI Rating Species
Clementine 25% 7.2 Perennial Ryegrass
Monroe 25% 6.4 Perennial Ryegrass
Chardin 25% 6.1 Perennial Ryegrass
Chloe 25% 6.4 Perennial Ryegrass

Sowing rate - 35-75g/m2

Oversowing - 25-75g/m2

Mowing height - Down to 2mm 

BSPB Turfgrass Seed Booklet

DLF is proud to have some of the highest STRI rated cultivars, meaning you can feel confident that your turf grass seed has the best chance at creating the elite facilities you are looking for. BSPB is a trade association providing accurately analysed and independently supervised trials for turf seed companies.

Latest news

Drought-tolerant Johnsons mixtures stand up to the coastal challenges at North Wales Golf Club
29/06/2026

Drought-tolerant Johnsons mixtures stand up to the coastal challenges at North Wales Golf Club

Located on the exposed Llandudno coastline, North Wales Golf Club has been shaped by the elements since its establishment in 1984. The traditional links course faces relentless wind, sand splash, naturally free-draining conditions and increasing pressure from dry summers – making drought tolerance a critical consideration when it comes to the clubs choice of grass seed. Demonstrating outstanding resilience and tolerance of both high traffic and the climatic conditions site-wide are mixtures from Johnsons Sports Seed.

Abersoch Golf Club weathers coastal challenges with Johnsons J Sustain Fairway
27/05/2026

Abersoch Golf Club weathers coastal challenges with Johnsons J Sustain Fairway

Perched on the Welsh coastline, Abersoch Golf Club has always lived at the mercy of the elements. Managing those ever-changing conditions for the last 37 years is Head Greenkeeper Arthur Evans who, in recent years, has found a combination of the right grass seed mixture and expert advice has transformed the condition and resilience of the 18-hole course - that combination being Johnsons J Sustain Fairway from DLF.

Johnsons Sports Seed delivers performance under  pressure at Bristol University
15/04/2026

Johnsons Sports Seed delivers performance under pressure at Bristol University

As a busy multi-sport facility, resilience of surfaces at Bristol University isn’t a luxury – it’s a necessity. Helping Grounds Manager Matt Carroll deliver consistent, high-quality pitches for winter and summer sports are mixtures from the Johnsons Sports Seed range, producing performance he and his team of four can rely on season after season.

DLF helps Bristol Golf Club create the right first impression on and off the course
07/10/2025

DLF helps Bristol Golf Club create the right first impression on and off the course

Despite a year of challenging weather, Bristol Golf Club has seen a remarkable improvement in its playing surfaces and overall visitor experience thanks to innovative seed solutions from DLF. The team, led by Course Manager Dave Taylor, introduced Johnsons J 4Turf 50 across all 27 tees in early 2025 which has gone on to demonstrate outstanding resilience and strong performance, coping with the pressures of a busy championship course.

Disease watch by DLF
19/09/2025

Disease watch by DLF

As pesticide regulations tighten and climates shift, the need for disease-tolerant turf varieties has never been greater. Consequently, we rigorously test and select varieties with strong natural resilience. By continuously developing new tolerant grasses and tracking long-term disease trends through our annual surveys, we’re helping our customers stay one step ahead. We build strong turf for the future.

Champion Greens: DLF Seeds Leads the Bowls Green Revolution at Groundsfest
18/09/2025

Champion Greens: DLF Seeds Leads the Bowls Green Revolution at Groundsfest

More than 80 bowling greenkeepers packed into Groundsfest’s inaugural Champion Greens: The Bowls Greenkeeper’s Masterclass — an information-packed day designed to support clubs from flat to crown green.