|'Plena' is a cultivar with double white flowers, 1 1/2 inches wide, having up to 30 petals each, much showier than the species.
Prunus avium can become a very large tree,
reaching heights of 70 feet or more. Generally it is kept under 40 feet when cultivated, with a similar spread.
The new foliage is bronze, becoming dark green in the summer, changing
to yellow in the autumn. The leaves are alternate, oblong-ovate, 2 to 6 inches long. The flowers appear in mid to late spring, and are white and fragrant, 1 1/2 inches in diameter, in clustered umbels. The fruit is a dark reddish cherry from which most of the modern sweet
cherries have been developed. Cultivated since ancient times.