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An illustration of a single dahlia flower. Dahlia is a genus of bushy, tuberous, perennial plants native to Mexico, Central America, and Colombia. There at least 36 species of Dahlia. Dahlia hybrids are commonly grown as garden plants. The Aztecs gathered and cultivated the dahlia for food, ceremony, as well as decorative purposes, and the long woody stem of one variety was used for small pipes

Dahlia

An illustration of a single dahlia flower. Dahlia is a genus of bushy, tuberous, perennial plants native…

An illustration of a double variety dahlia flower. Dahlia is a genus of bushy, tuberous, perennial plants native to Mexico, Central America, and Colombia. There at least 36 species of Dahlia. Dahlia hybrids are commonly grown as garden plants. The Aztecs gathered and cultivated the dahlia for food, ceremony, as well as decorative purposes, and the long woody stem of one variety was used for small pipes

Dahlia

An illustration of a double variety dahlia flower. Dahlia is a genus of bushy, tuberous, perennial plants…

Dahlia coccinea flowers vary in color from scarlet through orange and yellow. There is no double form.

Dahlia Coccinea

Dahlia coccinea flowers vary in color from scarlet through orange and yellow. There is no double form.

Dahlia merckii grows two to three feet tall. It is a distinct garden dahlia.

Dahlia Merckii

Dahlia merckii grows two to three feet tall. It is a distinct garden dahlia.

Dahlia rosea is also known as dahlia variabilis. It is the original of practically all of the old fashioned dahlias.

Dahlia Rosea

Dahlia rosea is also known as dahlia variabilis. It is the original of practically all of the old fashioned…

Cactus dahlia is the common name of dahlia juarezii.

Cactus Dahlia

Cactus dahlia is the common name of dahlia juarezii.

Illustrated is a fancy dahlia of the pompon type.

Fancy Dahlia

Illustrated is a fancy dahlia of the pompon type.

Illustrated are the clustered roots of the garden dahlia.

Garden Dahlia

Illustrated are the clustered roots of the garden dahlia.

Cactus dahlia is the common name of dahlia juarezii. The flowers heads are a brilliant scarlet. The flowers are irregular in length.

Original Cactus Dahlia

Cactus dahlia is the common name of dahlia juarezii. The flowers heads are a brilliant scarlet. The…

Grafting is a method of asexual plant propagation widely used in agriculture and horticulture where the tissues of one plant are encouraged to fuse with those of another. Pictured here is the root-grafting of a dahlia.

Root-Grafting of Dahlia

Grafting is a method of asexual plant propagation widely used in agriculture and horticulture where…

Illustrated is a semi double form of dahlia.

Semi Double Form of Dahlia

Illustrated is a semi double form of dahlia.

A show dahlia is usually one color.

Show Dahlia

A show dahlia is usually one color.

Illustrated is a broad rayed single dahlia.

Single Dahlia

Illustrated is a broad rayed single dahlia.

Grafting is placing two cut surfaces of one or different plants under conditions which cause them to grow together. In root grafting good roots should be secured as stocks when the plants bearing them are in a dormant state. Dahlias are good plants for root grafting.

Root Grafting

Grafting is placing two cut surfaces of one or different plants under conditions which cause them to…