£20 Gift Voucher. British Garden Centres Vouchers can be spent in any of our stores listed at www.britishgardencentres.com. They are not currently available to spend online. Voucher Ordering: Select the denominations you wish to order and proceed to checkout. During the checkout stage, you will be asked for a shipping address (An address where you wish the vouchers to be posted). If you require a message to be written in the card, you may write this in the comments box, also at the checkout stage. Vouchers will then be sent to your recipients address. British Garden Centre £20 Gift Vouchers are delivered in a beautiful presentation card and make the perfect gift idea for the keen gardener. You can use the gift vouchers in any of our garden centres and restaurants and at Woodthorpe Leisure Park.