Dahlia

Dahlia

Dahlia belongs to the Dahlia genus.

284 plantings
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18 wanted
70 stashed
78 to buy

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The Dahlia Plant Wiki

All details in our wiki have been kindly provided by our members.

Dahlias are native to Mexico and Central America. They were introduced to Europe in 1872 and have since been subjected to intense hybridization in order to create the thousands of named cultivars enjoyed by modern gardeners. Flowers come in many forms, from miniature pompoms to foot-wide “dinnerplates,” with colors ranging to just about anything short of blue. Scientifically speaking, dahlias have eight sets of chromosomes as compared to the two sets found in most plants, which explains the extraordinary diversity of types.

Plants can be propagated from seed, cuttings, or tuber divisions (with the warning that since most named varieties of dahlia are hybrids, saved seed is unlikely to come up true to the parent plant). Dahlias grown from seed should produce tubers that can be dug up and stored for the winter in areas with hard frost.

In the spring, stored (or purchased) tubers should be planted 4 – 6" deep after danger of frost has passed. Wait until leaves appear before watering. Taller varieties require staking— especially those with large blooms.

For more information, try The Colorado Dahlia Society.

Dahlia belongs to the Dahlia genus.

How to grow and keep Dahlia happy

In zones below 8, dig and store tubers after first hard frost.

How to sow and germinate Dahlia

Do not exclude light.

How to transplant Dahlia

Prefers full sun.

How to harvest Dahlia

Companion plants for Dahlia

These plants will grow well with Dahlia:

Repellent plants for Dahlia

These plants will not grow well with Dahlia so avoid planting these within close proximity:

Common Dahlia pests

These pests are known to attack Dahlia plants:

Common Dahlia diseases & problems

These problems and diseases are known to effect Dahlia plants:

How long does Dahlia take to grow?

These estimates for how long Dahlia takes to sprout, grow and harvest are from real observations from real gardeners, right around the world. Start logging and journaling your observations to participate!