The firm argues this issue has "damaged the reputation of lawnseed providers, and fears that unchallenged the damage will only continue".
Guy Jenkins from the UK’s largest grass seed producer, DLF Trifolium – makers of Johnsons Lawn Seed - said poor quality lawn seed blends continue to be sold, including cases of unsuitable agricultural grasses, being used in products that are being offered as domestic blends.
He said: "Lawn seed is a core selling, commodity product for every garden retailer. Unfortunately, a lack of consumer understanding about grass seed types and characteristics, combined with a more price-sensitive market, mean that some suppliers are continuing to cut corners by bulking out their lawn seed blends with low grade seeds.
"This may save pennies to the manufacturer, but when it fails to perform consumers are let down, and this ultimately undermines the market."
Johnsons Lawn Seed has launched two new products.‘The 1’ is a fast-establishing lawn seed, while After Moss, has been developed with a special anti-moss coating to keep moss at bay.