Consumer magazine Gardening Which? carried out tests on seeds by 15 of the country’s leading seed suppliers and found that only six of the brands were up to standard.
Suffolk Herbs managing director Les Day said the report fails to mention that all vegetable seeds are government tested for germination, purity and vigour.
He said: “The report is rubbish. Parsnip seeds only have to be 50 per cent successful because they are one of the most difficult things to generate.”
He added that soil and weather conditions also contribute to seeds’ success rate. Other firms also questioned Gardening Which’s methods, including Unwins and Edwin Tucker.
The report said 99 per cent of Edwin Tucker Delphinium seeds were dead and 15 per cent of its lettuce seeds produced normal seedlings. It said Suffolk Herbs, DT Brown, Mr Fothergill’s and Dobbies failed to reach the Vegetable Seed (England) Regulations 2002 for parsnip and lettuce germination.
Thompson & Morgan proved best, with 83 per cent of seeds producing healthy plants.
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