A new and distinct cultivar of Hydrangea plant named ‘HP220902’, characterized by its relatively compact, upright to somewhat outwardly spreading and rounded to conical plant habit; moderately vigorous growth habit and moderate growth rate; freely branching habit with strong, thick and sturdy stems; freely and uniformly flowering habit; large inflorescences with numerous yellow green-colored sterile flowers that become purplish red in color in the autumn; and good garden performance.

A new and distinct cultivar of Hydrangea plant named ‘HP220902’, characterized by its relatively compact, upright to somewhat outwardly spreading and rounded to conical plant habit; moderately vigorous growth habit and moderate growth rate; freely branching habit with strong, thick and sturdy stems; freely and uniformly flowering habit; large inflorescences with numerous yellow green-colored sterile flowers that become purplish red in color in the autumn; and good garden performance.

A new and distinct cultivar of Hydrangea plant named ‘SMHPS’ is disclosed, characterized by lace-cap inflorescences with bright pinkish-red sepals in late summer to fall. Plants have dwarf habits, dark green foliage, and strong, upright stems. The new variety is a Hydrangea, typically produced as an outdoor ornamental plant.

A new cultivar of Hydrangea macrophylla plant named ‘Hokopinel’ that is characterized by its very floriferous blooming habit, its clear pink inflorescences that perform well under bluing conditions, its compact and upright plant habit, its suitability as a potted plant, and its high resistance to Botrytis in cold storage.

A new and distinct cultivar of Hydrangea plant named ‘HI SKY’, characterized by its upright and broadly spreading plant habit; freely branching habit; strong and sturdy stems; freely flowering habit; large and dense inflorescences with purplish pink-colored sterile flowers; and good post-production longevity.

A new and distinct cultivar of Hydrangea plant named ‘HISEA’, characterized by its upright and broadly spreading plant habit; compact, moderately vigorous growth habit and moderate growth rate; freely branching habit; strong and sturdy stems; dark green-colored leaves; freely flowering habit; large and dense inflorescences with purplish red to purplish pink-colored sterile flowers; and good post-production longevity.

A new and distinct cultivar of Hydrangea plant named ‘SMNHSG’, characterized by its upright and outwardly spreading plant habit; moderately vigorous growth habit; strong and sturdy stems; dark green-colored leaves; freely and remontant flowering habit with numerous panicles per plant; showy lacecap inflorescences with purplish red-colored sterile flowers that when “blued” are purple in color; and good garden performance.

A new and distinct cultivar of Hydrangea plant named ‘RLL-12-20’ is disclosed, characterized by purple-red new growth of foliage color, thick leaves, pink mophead inflorescence in non-aluminum-based media and blue inflorescence in aluminum-based media, and compact, rounded to spreading growth habit. The new variety is a Hydrangea, typically produced as an outdoor ornamental plant.

A new and distinct cultivar of Hydrangea plant named ‘CE-01-20’ is disclosed, characterized by bright yellow foliage in the spring, turning to yellow-green in the summer, pink mophead inflorescence in non-aluminum based media and blue inflorescence in aluminum based media, and compact, rounded to spreading growth habit. The new variety is a Hydrangea, typically produced as an outdoor ornamental plant.

A new and distinct cultivar of Hydrangea plant named ‘CAMCHO45’ is disclosed, characterized by lace-cap inflorescences with large, distinctly concave pure white sepals. Plants have rounded habits, dark green foliage, and very dark purple stems. The new variety is a Hydrangea, typically produced as an outdoor ornamental plant.