Holly is one of those trees that is either male or female. The male must have been spreading its pollen last year when the female was in flower; this year, for whatever reason, the two didn't coincide - unless that is whoever had the male holly didn't cut it down.

Nite says it hasn't flowered at all though? Its only a young tree and this does sometimes happen - perhaps its just having a rest. Gardening is sometimes a real exercise in patience...

Sometimes plants flower in cycles: a heavy bloom and fruit one year, followed by a year with hardly any. Also, if it was pruned heavily early this spring, to remove old berries, that may have cut off the blooming wood for this year.

Thank you all for your advice l will wait for next year i never pruned it,it was full last year a beautiful sight.