1/13/2024 0 Comments Growing zinnias from seed in potsSow a round of seeds every week or so for several weeks to extend the flowering period.Zinnias will grow in a minimum daytime temperature of about 60☏ (16☌), though a range of 74–84☏ (23–28☌) is preferred.Zinnias are sensitive to frost, so do not seed until the last frost has passed in your area.Note: Zinnias can be started from seed indoors if you prefer-just transplant them while they’re young and do so carefully.From seed, they will grow very quickly in the right conditions. It’s recommended that you grow zinnia from seed right in the garden bed, as they do not like to be transplanted.Learn more about soil amendments and preparing soil for planting. Soil pH should ideally be between 5.5 and 7.5. If soil is amended with compost (humus), the flowers will grow more quickly. Zinnias are able to adapt to most soil conditions, but the ideal soil will be rich in organic matter and well-draining. Additionally, a site that offers good air circulation will help to prevent foliar diseases such as powdery mildew later in the season. Smaller zinnias are suitable for edging, windowboxes, or other containers.Ĭhoosing a location that gets full sun (6 to 8 hours of sunlight per day) is essential to getting plentiful blooms throughout the season. Plant zinnias in an annual or mixed border garden. In addition to these forms, zinnia flowers come in a number of shapes, including “beehive,” “button,” and “cactus.” The plants also come in different heights: taller varieties are best for the background of a garden bed, while shorter varieties work well along a border. Semidouble-flowered zinnias are somewhere in-between, with numerous rows of petals but visible centers.Double-flowered zinnias have numerous rows of petals, and their centers are not visible.Single-flowered zinnias have a single row of petals and a visible center.The distinction between these forms comes from the number of rows of petals and whether or not the center of the flower is visible: There are three main kinds of zinnia flowers: single, semidouble, or double. The most popular zinnia species is Zinnia elegans, which has been bred to produce a great number of unique varieties. They have bright, solitary, daisy-like flowerheads on a single, erect stem, which makes them great for use as a cutting flower or as food for butterflies. ![]() Zinnias are annuals, so they’ll grow for one season to produce flowers and seeds, but the original plant will not come back in subsequent years. Learn more about growing and caring for zinnias. If you want these annuals to reseed, let the last flowers of the season mature fully. ![]() Zinnias create a massive burst of color in your garden from summer through the first hard frost of fall.
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