A new and distinct cultivar of Dahlia plant named G14402DAHL, characterized by its upright and mounding plant habit; vigorous growth habit; freely branching habit; dark green-colored leaves; early and freely flowering habit; and large semi-double type inflorescences with greyed purple-colored ray florets.

A new and distinct cultivar of Dahlia plant named G15307, characterized by its upright and mounding plant habit; vigorous growth habit; freely branching habit; dark green-colored leaves; early and freely flowering habit; and semi-double type inflorescences with yellow and greyed orange-colored ray florets.

A new cultivar of Dahlia plant named Sunfire that is distinguishable by its naturally branched plant habit with multiple basal branches and lateral branches, dentate compound leaves, and large informal decorative type flowers which are bicolored yellow with bright red stripes and splashes, is disclosed.

A new and distinct cultivar of Dahlia plant named Baldenink, characterized by its semi-double type, pink-colored inflorescences having yellow tones in the center, dark green-colored foliage, and moderately vigorous, compact-upright growth habit, is disclosed.

A new and distinct cultivar of Dahlia plant named Ferangel, characterized by its compact, upright and mounding plant habit; moderately vigorous growth habit; freely branching habit; dark green-colored leaves; freely flowering habit; and double type inflorescences with white-colored ray florets.

A new and distinct cultivar of Dahlia plant named Baldenink, characterized by its semi-double type, pink-colored inflorescences having yellow tones in the center, dark green-colored foliage, and moderately' vigorous, compact-upright growth habit, is disclosed.

A new and distinct cultivar of Dahlia plant named BKDAMDR, characterized by its broadly upright plant habit; freely basal branching habit; dense and bushy growth habit; medium-sized dark green-colored leaves; and large semi-double inflorescences with dark red-colored ray florets.

A new and distinct cultivar of Dahlia plant named BKDAMWT, characterized by its broadly upright plant habit; freely basal branching habit; dense and bushy growth habit; medium-sized dark green-colored leaves; and large semi-double inflorescences with white-colored ray florets.

A new and distinct cultivar of Dahlia plant named BKDAMYL, characterized by its broadly upright plant habit; freely basal branching habit; dense and bushy growth habit; medium-sized dark green-colored leaves; and large semi-double inflorescences with bright yellow-colored ray florets.

A new and distinct cultivar of Dahlia plant named BKDAMGE, characterized by its broadly upright plant habit; freely basal branching habit; dense and bushy growth habit; medium-sized dark green-colored leaves; and large semi-double inflorescences with bright yellow and red bi-colored ray florets.