Pictures shown are mature trees for sake of reference. 
This product is sold in seedling size (18-24") bundles of 25.
(Not full grown)
 
 
Common elderberry is a large, multi-stemmed, native shrub with showy white flower clusters in mid-summer, followed by juicy, blue-black fruits. Plants are coarse and best used for naturalizing or as a back-of-the-border hedge. Also known as Sambucus nigra ssp. canadensis.
Family (English)Elderberry
Family (botanic)Adoxaceae
Foliage: Deciduous (seasonally loses leaves)
Native locale: North America
Size range: Large shrub (more than 8 feet)
Light exposure: Full sun (6 hrs direct light daily), Partial sun / shade (4-6 hrs light daily)
Hardiness zones: Zone 3-9
Soil preference: Acid soil, Alkaline soil, Moist, well-drained soil
Tolerances: Occasional drought, Occasional flooding, Road salt
Flower color and fragrance.: Fragrant, White
Shape or form: Broad, Multi-stemmed, Round
Growth rate: Fast, Moderate
 
Excerpt from and for more information see: https://mortonarb.org/plant-and-protect/trees-and-plants/common-elderberry/