"It's an opportunity for British growers," he said. "Continental suppliers are not gearing up for this - they think we're mad."
The previous Government sought to eliminate consumer peat sales by 2020, but the policy is now under review. Any legislation would have to cover the sale of potted plants as well as growing media and the rules for importers would need to be the same, said Tugman.
"We need a level playing field, not different rules for importers." He said only the threat of an outright ban would bring an adequate supply of alternative media.
Sinclair has invested three years and £1.5m in Superfyba, a green waste-derived growing medium that it said can be used neat in a range of commercial crops.