Choosing different flower seeds for a variety of shapes and colors in your garden allows you to fully participate in the growth experience. While some flowers may be grown from bulbs or are transplanted, growing a garden from seeds calls for a need to research the type of blossoms the seeds will produce as well as understanding basic timetables for germination.
Petunia seeds are one annual flower variety for the home garden. Petunias seed in late February and germination time is six to 12 days. These widely-grown annuals display every color of the spectrum in solid varieties, star patterns and varieties with contrasting hued veins; some varieties emit a sweet-scented fragrance, according to the Clemson University Extension. Bloom time lasts from spring until frost. Thriving in full sunlight with a preference for moist soil with a pH of 6.0 to 7.0, petunia seeds have a slow to medium growth rate. Petunias have a slight tolerance to cold and frost once established, according to the University of Missouri Extension.
Lobelia seeds are an annual flower for the home garden. Lobelias seed in early February with a germination period of 15 to 20 days, according to the University of Missouri Extension. Displaying vivid blue flowers, lobelias thrive in partial shade but can tolerate full sunlight and prefer rich, well-drained soil; lobelia is not tolerant to cold or frost. Different cultivars may come in different shades of blue, purple or red, according to the University of Florida IFAS Extension. This annual slow-growing seed develops into a plant that blooms within four months and reaches up to 1 foot in height with a spread of up to 2 feet.
Cockscomb seeds, also referred to as celosia seeds, are fast-growing annual flower seeds for the home garden. Cockscombs seed in early April with a germination period of six to 10 days, according to the University of Missouri Extension. With high visual interest, cockscomb displays flowers that resemble cockscombs, feathers or wheat depending on the variety; colors include shades of orange, red and yellow. Thriving in full sunlight, cockscombs prefer well-drained soil but tolerate dry, poorly drained soil. Bloom time is from June through October; these annuals will not tolerate cold or frost. Cockscomb plants grow to a height of 8 to 24 inches in height, according to the University of Illinois Extension.