Westfield London, the Trafford Centre and the Bullring will each house one of the 15-metre trees, made from 2,500 suspended golden baubles.
Ferrero will also distribute 60,000 goodie bags across the three locations, including samples of the full Ferrero boxed range.
The campaign will run for the next three months until Christmas Eve, and will include TV and consumer press advertisements.
Ferrero UK marketing director Dave Tucker commented: "Ferrero has always been synonymous with Christmas, for family and friends. Our campaign builds on this association, to highlight that giving and sharing Ferrero this Christmas can make the occasion even more special."
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