CLEEK

Top ranked for use on golf greens - Excellent disease tolerance

Top performance!

CLEEK is out of European breeding with a wide genetic background offering excellent green performance in Scandinavia and confirms the high level in STRI close mown trials.

Disease tolerance

One explanation for the top ranking in Scandinavian trials is certainly the good resistance to a range of diseases combined with density and fineness. CLEEK manages to keep a good winter colour and still maintain a good winter hardiness.

Adapted to greens and fairways

The STRI trials also perhaps very good performance for use on tees/fairways (trials cut 10-15 mm).

Salt tolerance

CLEEK turned out as one of the better in our salt tolerance trials (coastal areas, irrigation water with salinity...).

Top performance on greens in STRI (UK) and Scangreen network
High tolerance to several important diseases
Winter hardy and good winter colour
High performance for fairway use too

Ratings

Scale 1-9, where 9 = best or most pronounced

Colour

Density

Fineness

Red thread tolerance

Salt tolerance

BSPB Turfgrass Seed List

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.

Explore the list

Latest news

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.

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.

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.