single-flowered types have a single ring of flower petals
surrounding the center. Flowers can reach up to four inches across.
Plant size is usually a foot and a half to two feet tall.
dahlias have fully double flowers made up of many slender, pointed
florets, similar to cactus flowers. Often the flower petals are
rolled inward, resembling quills. Cactus dahlias have some of the
largest flowers. It is not uncommon to have flowers 10 inches wide or
more. Cactus types are also tall plants, easily reaching five feet tall.
dahlias have flower petals that are flat near the center then form a
tube at the outer edges. Like cactus-flowered types, semi-cactus also
has large flowers on tall plants.
Incurved cactus dahlia flowers closely resemble cactus types, but the
flower petals of incurved cactus types curve inward rather than
outward. As with cactus types, incurved cactus varieties have large
flowers on tall plants.
dahlias have fully double flowers arranged in a tight clump, and
usually have rounded-edge florets. Pompon dahlia flowers are
generally small, averaging two inches or less across. Plant height
ranges from two to four feet.
dahlias closely resemble pompon types but with an even more rounded
appearance. The short flower petals are very close together and
appear to spiral outward from the center. Ball-type flowers are four
to six inches in diameter. Miniature ball dahlias have the same type
of flowers as the ball-types, only smaller. All are less than four
inches wide. Both types grow up to four feet tall.
dahlias have single flowers with two rows of petals arranged around
the center. The inner row of petals are shorter than the outer row
and are usually a different, contrasting color than the outer petals.
Flowers are up to four inches across. Plant height ranges from two
and a half feet tall to four feet tall.
decorative dahlias have flowers with numerous flower petals. The
flower petals are evenly spaced and each petal in each row is
identical in length. Flower size varies with formal decorative types,
from miniatures under two inches wide to giants over 10 inches
across. Formal decorative dahlias are large plants, as well. They can
reach five feet tall or more.
Informal decorative types have flowers with long petals that are
sometimes twisted. Unlike the formal decorative, the flower petals of
informal decorative dahlias are not evenly spaced around the flower.
Flowers are four inches wide or more on plants up to four feet tall.
dahlias have striking, star-shaped flowers. The open-centered
flowers have long petals with ends that curve backward. Flowers are
generally four inches wide or more.
dahlias bear open-centered flowers. Surrounding the center are two
to three rows of flower petals. The petals are often curled or
twisted. Flowers range from less than five inches across to over
eight inches wide. Plants are usually three feet tall or so.
dahlias have flowers that closely resemble a waterlily. The fully
double flowers have a flattened shape on the outer edges and the
inner petals appear to close around the center. The flower petals are
flat with a slight curve on their outer edges. Flowers are generally
up to six inches across on four-foot-tall plants.
dahlias have one of the more unusual flower shapes. Arranged around
the outer edges of the flower is a single row of wide, flat petals.
Sitting atop the outer petals is a clump of small, tubular petals,
often in a contrasting color. Plant size ranges from two to three
feet tall with flowers up to four inches wide.
Miniature dahlias are a smaller version of all the different
classifications of flower types except ball and pompon. Plant size is
small, under four feet tall, and flowers range in size from two to