Adding to the chain's five stores in London, the online offering allows consumers to buy a range of hampers and fruit for delivery within two to three days.
Hamper prices on the site start from £13.99 (Allegro Coffee Break) and range to £169.99 (Italian Luxury), with the grocer also offering wines and spirits collections and gift vouchers. It also stocks gift sets for men and women, such as candles and cosmetic products.
Earlier this month, Marketing revealed that Whole Foods Market is plotting fresh expansion in the UK, after a previous bid ended in failure.
It plans to open stores around the country, in a format that falls between the size of its Kensington store and its four smaller stores located in London.
Its original plans to open up to 40 stores were undermined by poor financial results: in the year to September 2008, the company made an operating loss of £35.9m in the UK.
Jeff Turnas, who took over as Whole Foods Market's UK region president in March 2009, is understood to be overseeing plans for fresh growth.
The retailer entered the UK market in 2004 through the acquisition of seven Fresh & Wild stores. Its flagship store opened on Kensington High Street in 2007, but its Bristol store has subsequently closed.