Gift Vouchers purchased through this website are subject to the following terms: - National Garden Gift Vouchers are operated by the Horticultural Trades Association on behalf of our members and can be exchanged at participating gardening retail outlets across the UK. National Garden Gift Vouchers are valid for the purchase or part purchase of goods in participating garden retail outlets. National Garden Gift Vouchers have an expiry date which is a minimum of 3 years from the date of purchase. The exact expiry date is printed on the back of each voucher. National Garden Gift Vouchers cannot be replaced if lost or damaged. It is at the individual retailers discretion whether vouchers can be used against sale items. It is also at the individual retailers discretion whether change is given for the purchase of goods below the value of the voucher.