The whisky is made at the nearby Cotswold Distillery from barley cultivated on the estate, Highgrove said, while the scarf design features flowers from Camilla's wedding bouquet and hellebore which was worn in Charles' buttonhole for their 2005 ceremony.

Highgrove is the King and Queen's Gloucestershire residence where Charles has recently rested after spending time in hospital for side effects of his cancer treatment last month.

Scott Simpson, King's Foundation retail director, said: "The gardens at Highgrove played a special part in their wedding day. It is fitting to mark the occasion with products inspired by the gardens and their wedding flowers."

Just 150 limited edition bottles of the whisky will be produced and will be bottled on April 9, the anniversary day. The special edition bottle and box will also feature flowers from Camilla's wedding bouquet and the hellebore Charles wore in his buttonhole.

Meanwhile, fans longing to get a taste of Meghan Markle's products will be disappointed as her lifestyle brand got sold out within minutes of its launch.

Last Wednesday, the Duchess of Sussex launched As Ever, with its website features nine products in total, with eight originally available to purchase.

However, all of them were sold out within the first hour. As Ever's first collection of seasonal products contained "limited qualities" of each product.

For this first collection, it included a raspberry spread in keepsake packaging, a raspberry spread without keepsake packaging, which is still not available to purchase, herbal lemon ginger tea, herbal peppermint tea, herbal hibiscus tea, her flower sprinkles, crepe mix, shortbread cookie mix with flower sprinkles included and a limited-edition wildflower honey with honeycomb.

Meghan's raspberry spread in keepsake packaging was priced at 14 dollars (£10.80), while her limited edition wildflower honey with honeycomb cost 28 dollars (£21.60). The spread without the packaging will become available later for 9 dollars (£7).

Meanwhile, her flower sprinkles, which the duchess uses frequently and refers to in her Netflix series, cost 15 dollars (£11.60).

The herbal teas—lemon ginger, peppermint, and hibiscus—cost 12 dollars (£9.30) each, and the crepe mix and shortbread cookie mix are both priced at 14 dollars (£10.80).