Common name: Purging Buckthorn.
Native: Europe, western Asia, Morocco
Size and spread (10 years): 3m x 2m
Treatment required: Deeply dormant requires 34 weeks stratification treatment.
Seeds / kg: 54,400 64% viable
Ideal sowing period: Spring
Soil conditions: All types of soil in sun or shade.
Planting instructions: Makes a soft informal hedge or screen. Plant about 1m apart
Mature height: 3m x 2m
Pic courtesy of Matt Lavin from Bozeman, Montana, USA, CC BY-SA 2.0 , via Wikimedia Commons