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Home / Blog / Origin of dahlia tubers
Herkomst van dahlia knollen

Origin of dahlia tubers

Dahlias are native to the mountains of Mexico and Guatemala. They belong to the genus Dahlia , within the Asteraceae family, which also includes sunflowers, chrysanthemums, and daisies.

The dahlia is the national flower of Mexico. There are hundreds of varieties that differ in shape, size, and color. Dahlias are cultivated worldwide and used in gardens, public green spaces, and cut flower production.

Historical background

In the 16th century, Spanish explorers discovered the tree dahlia ( Dahlia imperialis ). This plant was used by the Aztecs, among others, because of its hollow stems, suitable for transporting water.

It wasn't until the 18th century that dahlia seeds and tubers were brought to Europe, via the Royal Botanical Gardens in Madrid. Initially, the plant was primarily studied as a food crop. Between 1810 and 1840, interest in crossbreeding forms and colors grew.

In 1872, a consignment of dahlia roots arrived in the Netherlands, of which only one tuber survived. This plant led to new crosses, including Dahlia juarezii , and marked the beginning of modern dahlia hybrids.

Species and diversity

Dahlias are available in several forms, including:

  • Pompom dahlias

  • Cactus dahlias

  • Decorative dahlias

  • Water lily dahlias

They are available in a wide color spectrum, from light to dark. This variety makes them suitable for various applications.

Planting dahlia tubers

Planting time: as soon as the risk of frost has passed (usually after mid-April)
Location: sunny location with at least 6 hours of sunlight per day
Soil: well-drained, humus-rich

Planting instructions:

  • Dig a hole about 15 cm deep

  • Place the tuber with the eyes facing up

  • Cover with soil and water

Care

  • Water: water regularly, especially during dry periods

  • Fertilization: Fertilize once a month with a balanced fertilizer.

  • Topping: At a height of approximately 40 cm the top can be removed to encourage branching.

Buy Dahlia tubers

Dahlia tubers are available from specialized bulb suppliers. Gerven Bulbs offers a range of dahlia tubers in various colors and flower shapes. The tubers are offered online and are suitable for use in ornamental gardens or as cut flowers.