These Dahlias have single flowers with flat outer petals and the pincushion centre surrounded by a ring of shorter florets.
Dahlia Collarette Excentrique has purple flowers with dark foliage.
Dahlia Collarette Famosa.
Soft lilac-pink petals with a smaller white collar and yellow centre.
Dahlia Collarette Festivo.
Bright red petals, yellow centre with creamy-white flecks.
Dahlia Collarette Pooh Swan Island.
Red, with a yellow centre and petal edges.
RHS Award of Garden Merit.
Collarette Dahlia Twynings White Chocolate.
White with a collar of shorter white florets.