Dahlias are considered one of the most spectacular garden flowers.
There is a great variety of form in dahlias,
from the showy dinner-plate size to the bright, little single ones.
Dahlias are natives of the mountainous regions of Mexico and,
although they grow in a warm country, they are actually temperate plants requiring cooler conditions.
There are 30 species and 20,000 cultivars of Dahlias.