Annuals are flowers that bloom the first year they are planted, often flowering just a couple of months after sowing. Most annuals are started indoors or in greenhouses in late winter or early spring.
Designing with annuals gives lots of importance to flower color. Annuals offer flower color for a longer period of time than other plant types, for they are constantly in bloom. Blue to purple annual flowers, such as sweet alyssum and heliotrope, are often used in complex plans.
Visit the links below for more information about blue to purple annuals, grouped according to light condition. Before planting, check with your garden center to make sure that the flowers you've selected will flourish in your locale.