Amenity Tetraploid Perennial Ryegrass
Lolium perenne
British lawns have a lot to cope with. Varying weather from Hot, dry summers to cold winters with heavy rain, combined with stresses to the lawn like children playing and pets running around. That’s where tetraploid Perennial Ryegrass comes in.
Tetraploid Perennial Ryegrass is a specially developed type of perennial ryegrass bred to establish quickly, grow strongly with deep root systems and cope better when conditions get tough. It combines the hard-wearing qualities you’d expect from a perennial ryegrass with greater resilience to drought, cold, wear and other stresses.
What makes Tetraploid Perennial Ryegrass different?
You may see the word tetraploid used when describing certain grass varieties. It sounds technical, but the important part is what it can do for your lawn.
Most traditional Perennial Ryegrasses are diploid, while tetraploid varieties have a different genetic structure that gives them larger seeds with greater natural energy reserves. This helps seedlings get off to a strong start and supports vigorous plants with impressive root systems.
In simple terms: stronger seed, stronger roots and a more resilient lawn.
Deeper Roots
One of the biggest advantages of tetraploid Perennial Ryegrass is what’s happening underneath your lawn.
Its strong, extensive root system can explore more of the soil for moisture than conventional ryegrasses (upto 2 times deeper root system). When rainfall becomes scarce, those deeper roots give the plant better access to the water naturally stored further down.
That can help your lawn:
- cope better during hot and dry spells
- stay greener for longer
- recover more quickly after drought stress
- make better use of natural rainfall
- reduce its reliance on frequent watering
With increasingly unpredictable summers and periods of water restrictions, choosing grasses with stronger root systems is becoming increasingly important.
Gets growing quickly & early
Tetraploid Perennial Ryegrass has naturally larger seeds containing plenty of energy to support early growth.
That helps it establish quickly after sowing, making it particularly useful when overseeding an existing lawn, repairing worn areas or sowing when conditions aren’t quite perfect.
Some tetraploid varieties can begin establishing at soil temperatures as low as 4°C, extending the opportunities for successful lawn repair beyond the warmer months.
Built for busy gardens
A lawn isn't always there just to be admired.
Football games, children, garden parties, pets and regular trips across the grass can quickly wear down less resilient lawns.
Perennial Ryegrass is already known for its excellent wear tolerance, and tetraploid varieties build on those hard-wearing characteristics. Their vigorous growth helps the lawn withstand regular use and recover after periods of heavy traffic.
That makes tetraploid Perennial Ryegrass particularly valuable for family lawns, pet-friendly gardens and other heavily used areas.
Faster recovery when your lawn is stressed
During periods of extreme heat or drought, many grasses naturally slow their growth or become dormant.
Because tetraploid Perennial Ryegrass plants have strong energy reserves and vigorous growth, they can respond quickly when favourable growing conditions return.
So after rain arrives or temperatures begin to fall, your lawn has the ability to recover and fill out quickly rather than staying thin and stressed for longer.
Greener through more of the year
Nobody wants a lawn that only looks good for a few months.
Tetraploid Perennial Ryegrass varieties have been developed to perform across a wide range of conditions, including cooler temperatures. Their strong establishment and cold tolerance can help maintain healthy growth for longer during the year.
The result is grass capable of delivering a rich green appearance combined with year-round toughness.
A healthier lawn can mean fewer weeds
Quick establishment isn't only about getting your lawn green faster.
Grass that establishes strongly can cover bare soil sooner, leaving less space for unwanted weeds to move in.
When overseeding a tired or thinning lawn, the vigorous growth of tetraploid Perennial Ryegrass can therefore help create a thicker, denser lawn that is naturally better equipped to compete with weeds.
Naturally resilient to lawn diseases
Lawns under stress are often more vulnerable to disease.
Tetraploid Perennial Ryegrass varieties have been selected for strong tolerance to several common turf diseases, as tested by the STRI. Combined with their vigorous growth and greater energy reserves, this helps the grass remain healthier when conditions become challenging.
For the home gardener, that means choosing grass that has more natural resilience built in from the start.
Why we use tetraploid grasses at Johnsons Lawn Seed
At Johnsons Lawn Seed, we don't believe the lawn mixtures of tomorrow should be exactly the same as those of yesterday. Hotter summers, unpredictable rainfall and increasingly busy gardens mean grass needs to do more.
That's why tetraploid Perennial Ryegrasses are included within selected Johnsons Lawn Seed mixtures. Rather than relying on a single type of grass, we combine carefully chosen varieties and species so their individual strengths complement one another. Depending on the mixture, that can mean combining qualities such as:
- deeper rooting
- drought resilience
- fast establishment
- excellent wear tolerance
- strong recovery
- fine appearance
- year-round colour
The result is a lawn seed mixture designed not simply to germinate, but to create a lawn capable of performing in real British gardens.
Why we use tetraploid grasses at Johnsons Lawn Seed
At Johnsons Lawn Seed, we don't believe the lawn mixtures of tomorrow should be exactly the same as those of yesterday. Hotter summers, unpredictable rainfall and increasingly busy gardens mean grass needs to do more.
That's why tetraploid Perennial Ryegrasses are included within selected Johnsons Lawn Seed mixtures. Rather than relying on a single type of grass, we combine carefully chosen varieties and species so their individual strengths complement one another. Depending on the mixture, that can mean combining qualities such as:
- deeper rooting
- drought resilience
- fast establishment
- excellent wear tolerance
- strong recovery
- fine appearance
- year-round colour
The result is a lawn seed mixture designed not simply to germinate, but to create a lawn capable of performing in real British gardens.
Tuff grass for tough conditions
Created using 100% Tetraploid Perennial Ryegrasses for extreme wear & stress tolerance