Johnsons 4Turf

4TURF is a new turf type of tetraploid perennial ryegrass bred especially for rapid installation and unique stress tolerance. Tetraploid ryegrasses have long been known to show better stress tolerance and disease tolerance compared to diploids. Now these advantages have become available for turf grasses as 4TURF.

SKU: 119124
Weight: 20kg
Sale price£122.65 VAT free
(minimum of 1)


Johnsons 4Turf

Johnsons J 4Turf uses a tetraploid perennial rye-grass bred especially for rapid installation and stress tolerance. The tetraploid cultivars used in J 4Turf establish rapidly even under low soil temperatures and root deeply to assist with drought tolerance and disease resistance. The diploid cultivar in the mix delivers high shoot density and increased wear tolerance.

% Cultivar Species STRI Rating
25 Tetragame 4Turf Tetraploid Perennial Ryegrass 5.5
25 Berlioz Perennial Ryegrass 7.2
25 Fabian 4Turf Tetraploid Perennial Ryegrass 6.3
25 Columbine Perennial Ryegrass 7.4
All cultivars chosen in this mixture are independently tested and rated for performance by the Sports Turf Research Institute.

Johnsons 4Turf Grass Seed Features

  • Better sward quality after summer stress
  • Better sward quality after winter stress
  • Reduced fertiliser and chemical input costs
  • Excellent winter behaviour
  • Rapid installation
  • Excellent disease resistance
  • Good wear tolerance
  • Glossy dark green colour
  • Fast green-up

Directions for Use

Sowing Rate (g/m2) Overseeding Rate (g/m2) Mowing Height (mm)
35-75 10 - 50 Down to 12

Sowing Guidance

  • Prepare the surface before sowing ensuring that:
    • Stones & weeds are removed.
    • There is sufficient drainage.
    • The surface is level and firm.
    • The surface is moist.
  • Sow the seeds evenly, using the correct sowing rate to a depth of approximately 10 mm.
  • Ensure that the surface remains moist for at least 2 - 3 weeks.
  • Make the first cut when the grass is 5 - 6 cm tall and tillering has started.

Overseeding Guidance

  • Prepare the existing turf by removing excess thatch and limiting irrigation and fertilisation.
  • Apply using the correct overseeding rate.
  • For best results use a disc seeder or a studded seed roller.

Better sward quality after stress

In southern and continental areas in Europe 4TURF shows better recovery from both drought and heat stress as well as winter stress. Thus it outperforms ordinary diploid ryegrasses.

Rapid installation

4TURF seeds are 1.5 times bigger than normal turf grasses. 4TURF produces stronger seedlings with faster establishment, resulting in less chances for the establishment of weeds. Thus 4TURF is the perfect oversowing choice for perennial ryegrass applications. 4TURF is very well suited for oversowing Bermuda in the transition zone resulting in a fast establishment and excellent turf quality but no more clippings.

Johnsons 4TURF Disease Resistance

Better disease resistance and stress tolerance

4TURF has an improved disease resistance, both under warm and cold conditions. In DLF trials from Scandinavia to the Mediterranean it has proven to be more resistant against F.E. rust, Fusarium, Elminthosporium, Drechslera, and Red Thread. It is very well suited for extensive management conditions.

Good wear tolerance

In German trials 4TURF varieties Double and Tetragreen are rated 8 sport/wear conditions using a 1-9 score. The shear strength is enhanced due to the deeper root systems.

Disclaimer: Occasionally shortages of some varieties may occur, therefore we reserve the right to replace unavailable varieties with a suitable alternative. Any alteration to the mixture will be clearly shown on the bag label. Our standard terms and conditions of sale apply. For further information regarding this, please contact our technical sales team on 01902 440280.

Technical Information

Delivery and Returns

Delivery charge (if applicable) applied at checkout. Next working day delivery is available on some products, as an option on orders placed before 1pm - excludes festive season & bank holidays. Please note deliveries to Highlands, Cornwall and more remote areas may take longer. Surcharges apply for non mainland locations, call for more information - More delivery information.

For large orders, please be aware that if you require a smaller 7.5 tonne lorry, the maximum weight for pallets is 750 kg - otherwise the standard pallet size limit of 1000 kg applies.

If you have any access restrictions for lorries or large vehicles please speak to our sales team on +44 (0)1902 440250.

Collection from our Telford, Shropshire, Trade Counter is available for this product - More collections information.

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