England flower head petal Prunus spring stamen Sussex twig white wild blossom cherry fresh pink pompom aroma clingstone color colour cultivars delicate drupes edible firm food fruit healthy jam juicy kernel nectarines nutritious peaches pit prunus-persica-var.-nectarine red ripe Rosaceae seed skin smooth smooth skin stone stone-fruit sweet tasty tree-fruit variety whole Apricot Apricots delicate aroma downy skin golden orange kernels orange prunus armeniaca small soft stone fruit tree fruit velvety skin domestica harvest leafs Nyberg pleaf plum plums tree Victoria blue footpath grass sakura season sky prunus persica var. nectarine whitish flesh