A new and distinct cultivar of Hydrangea plant named LC NO6, characterized by its upright to somewhat outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO6, characterized by its upright to somewhat outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO9, characterized by its upright to somewhat outwardly spreading plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile and prominent white-colored fertile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO9, characterized by its upright to somewhat outwardly spreading plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile and prominent white-colored fertile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO12, characterized by its upright to outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO12, characterized by its upright to outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO11, characterized by its upright to somewhat outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large and durable white-colored sterile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO11, characterized by its upright to somewhat outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large and durable white-colored sterile flowers; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO10, characterized by its upright to outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers that age attractively to purplish pink in color with development; and good garden performance.

A new and distinct cultivar of Hydrangea plant named LC NO10, characterized by its upright to outwardly spreading and uniform plant habit; freely branching habit with strong lateral branches; early and freely flowering habit with plants remaining in flower for a long period time; dense and hardy inflorescences with large white-colored sterile flowers that age attractively to purplish pink in color with development; and good garden performance.