Spring is definitely flowering shrub power time but one of my all time favorites is Viburnum Mariesii. Several different cultivars of Viburnum are available with the most common known probably being the “Snowball” bush. As lovely as they all are nothing beats Mariesii for form and shape. With its distinctive layered, tiered branches there is no mistaking it. “Shasta” is another wide spreading variety with horizontal branching but it is lower growing.
Spring flowering is outstanding. Large inflorescences 4 to 6 inches apart of pure white flowers appear in late spring, developing into red ornamental fruit for the fall. Mariesii grows about 6 to 8 feet tall and 8 to 10 feet wide. It prefers full sun to light shade in average soil and water conditions. Feed with a general purpose fertilizer before new growth begins in the spring. Hardy to zone 5.
This bush makes a perfect specimen planting as it looks great in every season of the year.
Not easily found in garden centers which I have never understood. You might have to search a bit for this.