Stunning Garden Dahlia Flowering Plants
Dahlia flowers are popular plants grown in the garden. Dahlias are perennial plants, although most gardeners grow them as annual plants. The genus dahlia is in the class Agnoliophyta and the family Asteraceae. The different types of dahlia plants are astounding and mind numbing in their excess. The only way even expert growers can keep them all straight is by ordering the types of dahlia flowers into groups. The actual appearance of a dahlia plant is very similar among species. Most are small to large bushes with deeply cut leaves that stem from tubers. Plants require sun, well-drained soil, plenty of water and good air circulation. Once you start trying to tell the difference between the species and hybrids, all other similarities become more vague. Dahlia varieties are divided into flower form classes. These indicate the shape of the flower and occasionally the character of the petals.
The other method of separating the varieties of dahlia is by delineating by flower size. This method is a quick and fairly unsophisticated way to tell a class just by eyeballing the blooms. The best growing spots for dahlia plants are sheltered from strong winds, and receive at least six hours of direct sunlight every day. Dahlias will grow in partially shaded sites, but flowering is reduced. In hot climates, these plants benefit from filtered shade, such as from a tree, during the hottest part of the day. Dahlias grow in most freely draining soil types, but the plants grow best in slightly acidic, sandy loam.