CEO Chris Bonnett said he first saw the pink Photinia, which has a white edge at Plantarium in Holland in 2007.
After two years building up stocks, Gardening Express has 500 plants from France to sell at £17.95 for a three-litre container.
The plants is a sport of Photinia ‘Red Robin'.
Foliage of ‘Pink Marble' is variegated with green, cream, pink and young red shoots.
Bonnett set up his business fully in 2005 after leaving college and is unusual as an online garden retailer in specialising in plants.
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