Tony Magdi died after being attacked by a cyclist outside his store in Hove, East Sussex, last November. He suffered serious head injuries during the attack and died in hospital three weeks later.
Tony's attacker, Paul Lambeth, admitted manslaughter and was sentenced to 18 months in prison.
The memorial, an olive tree with a plaque on the base inscribed with Tony's favourite motto, 'When you have enough you can afford to share', was organised by customers of the retailer through the Tony Magdi Memorial Fund.
The store has remained closed since Tony's death.