Could you tell me what is the name of this plant? Found in the park in London, in the middle of July.
This is the Common or English Laurel (Prunus laurocerasus), a species of cherry. It's not a true laurel, but got the name from the similarity of its leaves with those of the Bay Laurel (Laurus nobilis). Identifying characteristics are the waxy long oblong leaves, the gray smooth bark, and the clusters of fruits ripening from pale green through red to black. It flowers in late spring, with spikes of fragrant small white flowers.
It's a large fast-growing, evergreen shrub, that is used as for hedging and privacy screens. The seeds are spread by birds that eat the fruit, and it can become invasive because it grows quickly and shades other plants.