Dahlia Seed ( Annual )
Growing dahlias from seed can be fun! Start by spreading potting soil mix in a low, flat tray. Potting soil can be purchased at any garden center. Sprinkle your dahlia seed over the top of the soil. Then lightly cover with potting soil.
Lightly water so that soil is just damp, and continue to water lightly keeping the soil damp during sprouting. Sprouting should occur within a 7 to 10 day period. Do not over water. Keep in mind that unlike vegetable seed, dahlia seed will not all sprout the same day, germination will occur over several days.
After the young seedlings have reached a height of approximately 3 inches, they will be ready to separate and transplant into small "plugs" or pots. These containers should be filled with a potting soil and sand mix, approximately 2/3 potting soil and 1/3 sand. After potting up the seedlings, water enough to keep the soil dampened while they take root.
Continue to water and keep the soil damp as the plants grow. The seedlings will stay in these containers and continue to grow for about 4 to 5 weeks before they are ready for transplanting outside. Before you transplant outside, it is recommended that you harden off the young seedling first. They should be moved into a cold frame or the trays can be set outside during the day and brought in at night for a period of about 7 to 10 days.
This will help condition the young seedlings and they will and they will go through less shock when transplanted. Pick a sunny location that has well drained soil to transplant to. After transplanting your dahlias into your beds, be sure to keep them watered until the roots are established. (Approximate time 1-2 weeks).
These annual plants can be grown in zones 3-10.
Dandy Dahlia is a delightful semi-double flowering dahlia that produces masses of colorful blooms featuring contrasting central collars and bright golden centers. This charming mix displays flowers in shades of red, crimson, scarlet, rose, pink, lavender, purple, yellow, orange, and white, often accented by a ring of smaller inner petals that create an elegant "collarette" effect. The cheerful blossoms rise above attractive green foliage and bloom continuously from midsummer until frost, providing months of vibrant color in borders, containers, and cutting gardens.
Garden Uses:
Dandy Dahlia is ideal for flower borders, cottage gardens, cutting gardens, pollinator plantings, patio containers, and mass displays. The compact yet floriferous plants fit beautifully into mixed annual beds and combine well with cosmos, zinnias, salvias, marigolds, celosia, and ornamental grasses. The unique collarette-style flowers make excellent cut flowers, adding color and character to fresh bouquets throughout the growing season.
Growing Information:
Start seeds indoors 6-8 weeks before the last expected frost or sow outdoors after danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which typically occurs within 7-14 days. Plants thrive in full sun and fertile, well-drained soil. Regular watering and occasional feeding encourage continuous blooming. Dandy Dahlia typically grows 18-30 inches tall and spreads 12-18 inches wide. Deadheading spent blooms helps maintain a steady display of flowers from summer through frost.
Pompom Dahlia is a charming seed-grown dahlia selection prized for its rounded, ball-like blooms packed with tightly arranged petals in bright, cheerful colors. The flowers may appear in shades of pink, rose, red, orange, yellow, peach, lavender, and white, creating a lively display from midsummer until frost. With their neat globe-shaped flower heads and strong garden presence, Pompom Dahlias bring a classic cut-flower look to borders, containers, and cottage gardens.
Garden Uses:
Pompom Dahlia is ideal for cutting gardens, flower borders, cottage gardens, patio containers, mixed annual beds, and mass plantings. The rounded blooms add wonderful texture and color to the garden and are especially useful in fresh bouquets. They combine beautifully with cosmos, zinnias, celosia, marigolds, salvias, snapdragons, and ornamental grasses. Their compact to medium growth habit makes them versatile enough for both garden beds and large containers.
Growing Information:
Start seeds indoors 6-8 weeks before the last expected frost or sow outdoors after danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which usually occurs within 7-14 days. Plants thrive in full sun and fertile, well-drained soil. Regular watering and occasional feeding encourage strong growth and continuous bloom production. Plants typically grow 18-36 inches tall, depending on growing conditions. Deadheading spent blooms helps promote more flowers throughout the season.
Unwin Bedding Mix Dahlia is a classic garden favorite that produces an abundance of semi-double blooms in a brilliant range of colors throughout the summer and fall. This long-established strain is prized for its compact growth, excellent branching, and remarkable flower production. The blooms appear in shades of scarlet, crimson, rose, pink, lavender, purple, orange, yellow, white, and countless bicolored combinations, creating a vibrant display that brightens borders, containers, and bedding plantings. Easy to grow from seed and exceptionally floriferous, Unwin Bedding Mix delivers months of dependable garden color.
Garden Uses:
Unwin Bedding Mix is ideal for flower beds, borders, mass plantings, cottage gardens, patio containers, and cutting gardens. Its compact, bushy habit makes it especially useful as a bedding dahlia where large numbers of colorful blooms create a dramatic display. The flowers combine beautifully with zinnias, cosmos, marigolds, salvias, celosia, ageratum, and ornamental grasses. The semi-double blooms are also attractive in bouquets and small floral arrangements.
Growing Information:
Start seeds indoors 6-8 weeks before the last expected frost or sow outdoors after danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which generally occurs within 7-14 days. Plants thrive in full sun and fertile, well-drained soil. Regular watering and occasional fertilization encourage strong growth and continuous flowering. Unwin Bedding Mix typically grows 18-24 inches tall and spreads 12-18 inches wide. Deadheading spent blooms helps prolong the flowering season from midsummer until frost.
Mignon Rose Dahlia is a delightful dwarf flowering dahlia that produces masses of soft rose-pink blooms above compact, bushy plants throughout the summer and fall. The flowers feature open centers surrounded by neatly arranged petals, creating a cheerful appearance that is both elegant and highly attractive to pollinators. Unlike larger exhibition dahlias, Mignon Rose is prized for its manageable size, heavy flowering habit, and exceptional suitability for borders, containers, and bedding displays. Its long bloom season and charming color make it a favorite for gardeners seeking reliable summer color.
Garden Uses:
Mignon Rose is ideal for flower beds, borders, cottage gardens, patio containers, window boxes, pollinator gardens, and mass plantings. The soft rose-pink flowers blend beautifully with white alyssum, blue ageratum, salvias, cosmos, marigolds, and ornamental grasses. The compact plants work especially well near walkways and patios where the flowers can be appreciated up close. Their long-lasting blooms also make attractive additions to small floral arrangements.
Growing Information:
Start seeds indoors 6-8 weeks before the final spring frost or sow outdoors after danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which generally occurs within 7-14 days. Plants thrive in full sun and fertile, well-drained soil. Regular watering and occasional feeding encourage vigorous growth and continuous blooming. Mignon Rose typically grows 12-18 inches tall and spreads 10-15 inches wide, forming tidy, well-branched plants. Deadheading spent flowers promotes even heavier blooming throughout the season.
Red Skin Mix Dahlia is a distinctive seed-grown dahlia strain prized not only for its colorful blooms but also for its attractive dark bronze-red foliage. The richly colored leaves provide a dramatic backdrop for the flowers, which appear in shades of scarlet, crimson, rose, pink, orange, yellow, salmon, and bicolors. This striking contrast between dark foliage and bright flowers creates exceptional visual impact throughout the garden. Blooming continuously from midsummer until frost, Red Skin Mix combines ornamental foliage and abundant flowers in one outstanding garden plant.
Garden Uses:
Red Skin Mix is ideal for flower borders, bedding displays, patio containers, cottage gardens, cutting gardens, and mixed annual plantings. The dark foliage creates beautiful contrast with silver-leaved plants, ornamental grasses, white flowers, salvias, cosmos, zinnias, and marigolds. Its compact growth habit makes it equally effective in containers and landscape beds, where the foliage remains attractive even when flowers are between bloom cycles.
Growing Information:
Start seeds indoors 6-8 weeks before the final spring frost or sow outdoors after danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which typically occurs within 7-14 days. Plants prefer full sun and fertile, well-drained soil. Regular watering and occasional feeding promote vigorous growth and continuous flowering. Red Skin Mix generally grows 18-30 inches tall and spreads 12-18 inches wide. Deadheading spent blooms encourages additional flowers throughout the growing season.
Giant Decorative Mix Dahlia is a spectacular seed-grown dahlia mixture that produces large, fully double blooms in a dazzling range of colors and forms. The impressive flowers may appear in shades of red, burgundy, rose, pink, lavender, purple, orange, yellow, cream, white, and beautiful bicolors. With their layered petals, bold size, and rich garden presence, these dahlias create a showy display from midsummer until frost. Giant Decorative Mix is an outstanding choice for gardeners who want big color, impressive cut flowers, and classic dahlia beauty from seed.
Garden Uses:
Giant Decorative Mix is ideal for cutting gardens, flower borders, cottage gardens, display beds, large containers, and colorful summer landscapes. The large double blooms make excellent focal points in mixed plantings and combine beautifully with cosmos, zinnias, salvias, cleome, marigolds, celosia, and ornamental grasses. Their long stems and impressive flower size make them especially valuable for fresh bouquets, showy arrangements, and garden-to-vase cutting gardens.
Growing Information:
Start seeds indoors 6-8 weeks before the last expected frost or sow outdoors after danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which usually occurs within 7-14 days. Plants thrive in full sun and fertile, well-drained soil. Regular watering, good air circulation, and occasional feeding encourage strong growth and large blooms. Plants typically grow 30-48 inches tall, depending on growing conditions. Staking may be helpful for taller plants or in windy locations. Deadheading spent flowers encourages continued blooming until frost.
Diablo Dahlia is a dramatic dark-foliaged dahlia mixture prized for its bold contrast of warm, fiery blooms against rich bronze to nearly black foliage. The flowers appear in glowing shades of red, orange, coral, apricot, yellow, rose, and deep magenta, creating a striking display that lives up to the name Diablo. Compact, colorful, and highly ornamental, this seed-grown dahlia brings both flower color and foliage interest to borders, containers, and summer bedding displays from midsummer until frost.
Garden Uses:
Diablo Dahlia is ideal for flower borders, bedding displays, patio containers, cottage gardens, tropical-style plantings, and mixed annual beds. The dark foliage creates outstanding contrast with the bright flowers and pairs beautifully with chartreuse coleus, silver foliage plants, ornamental grasses, salvias, zinnias, marigolds, and cosmos. Its compact growth habit makes it especially useful for containers and front-to-middle border plantings where both foliage and flowers can be appreciated up close.
Growing Information:
Start seeds indoors 6-8 weeks before the last expected frost or sow outdoors after all danger of frost has passed. Maintain temperatures of 70-75°F for best germination, which usually occurs within 7-14 days. Plants thrive in full sun and fertile, well-drained soil. Regular watering and occasional feeding encourage strong growth and continuous bloom production. Diablo Dahlia typically grows 18-30 inches tall and spreads 12-18 inches wide. Deadheading spent blooms helps promote flowering from midsummer until frost.
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Serving gardeners since 1992
State of Mississippi Seedmen's Permit #C-391, Ohio 90152, Minnesota 20086777