Sambucus nigra L. is part of the Adoxaceae family and is a shrub that prefers sunny places and is a native plant to Europe, America, Northern Africa and Western and Central Asia. The Sambucus nigra L. flowers and fruits have a long history of use in traditional European medicine, are used as treatment of diabetes and viral infections, fever, colds and flu. From elderberry fruits and flowers, tea, syrup and different alcoholic beverages can be obtained. Black elderberry ( Sambucus nigra L.) is a species that is also spread in Romania and its flowers and fruits are used for different purposes. The black elderberry produces umbels of cream-white flowers in early summer and blue-black fruits with a diameter of up to 6 mm, which ripen in late summer. The aim of this paper is to analyze the prevalence of climatic conditions on elderberry flower yields of different selections from spontaneous flora in two locations from the Oltenia region. Biometric data of quantitative traits have been collected from 10 elderberry selections in 2017 and 2018.