Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL139-09-01a’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; large mophead-type inflorescences with intense pink-colored sterile flowers or clear blue when treated with aluminum sulfate; long flowering period; and strong root system.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL116-09-01a’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; large mophead-type inflorescences with light pink-colored sterile flowers that are initially greenish white in color during early development; long flowering period; and strong root system.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL85-09-02’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; dark green-colored leaves; large mophead-type inflorescences with red purple-colored sterile flowers; when “blued”, that is, treated with aluminum sulfate, sterile flowers are purple in color; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL121-12-01’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; large mophead-type inflorescences with initially bright green-colored sterile flowers which become bright green and white in color with development; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL42-12-01’, characterized by its compact, upright and mounded plant habit; moderately vigorous to vigorous growth habit; freely branching habit and strong stems; dark green-colored leaves; large mophead-type inflorescences with white-colored sterile flowers with red purple-colored margins; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL66-11-01’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; dark green-colored leaves; mophead-type inflorescences with light red purple-colored sterile flowers; when “blued”, that is, treated with aluminum sulfate, sterile flowers are light violet blue in color; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL115-13-02’, characterized by its upright and mounded plant habit; moderately vigorous to vigorous growth habit; freely branching habit and strong dark greyed purple-colored stems; dark green-colored leaves; large mophead-type inflorescences with light red purple-colored sterile flowers with darker red purple-colored margins and venation; when “blued”, that is, treated with aluminum sulfate, sterile flowers are light violet blue in color; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL93-13-01’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and moderately strong stems; dark green-colored leaves; mophead-type inflorescences with light red purple-colored sterile flowers; when “blued”, that is, treated with aluminum sulfate, sterile flowers are light purple in color; long flowering period; good postproduction quality and longevity and relatively good garden performance.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL122-11-01a’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; dark green-colored leaves; mophead-type inflorescences with light red purple-colored sterile flowers; when “blued”, that is, treated with aluminum sulfate, sterile flowers are violet blue in color; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘ SCHROLL130-12-01a’, characterized by its upright and mounded plant habit; vigorous growth habit; freely branching habit and moderately strong stems; dark green-colored leaves; large mophead-type inflorescences with white-colored sterile flowers that are initially pale yellow green in color; long flowering period; and good postproduction quality and longevity.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLL43-13-01’, characterized by its upright and mounded plant habit; moderately vigorous growth habit; freely branching habit and strong stems; dark green-colored leaves; large mophead-type inflorescences with white-colored sterile flowers; long flowering period; good postproduction quality and longevity and relatively good garden performance.

Abstract: A new and distinct cultivar of Hydrangea plant named ‘SCHROLLA25’, characterized by its compact, upright and mounded plant habit; moderately vigorous growth habit and rapid growth rate; freely branching habit and strong and sturdy stems; dark green-colored leaves; mophead-type inflorescences with purplish pink-colored sterile flowers; when “blued”, that is, treated with aluminum sulfate, sterile flowers are strong blue in color; long flowering period; and good postproduction quality and longevity as a container plant or cut flower and good garden performance.