Unwins Dahlia is a tender perennial that brings together a stunning spectrum of warm and cool tones in a single, easy-to-grow mix. This classic heirloom blend features rose, orange, yellow, crimson, purple, and brick red flowers in both single and semi-double forms, creating a garden display that shifts and glows throughout the season. Hardy in zones 2 through 11, it germinates quickly (7 to 14 days) and thrives in full sun with minimal fuss, making it an accessible choice for gardeners of all experience levels.
Full Sun
—
2-11
?in H x ?in W
—
Moderate
Hover over chart points for details
Unwins has greeted generations of summer gardeners with its reliable, colorful abundance. The mix's combination of single and semi-double blooms in warm oranges, reds, and purples alongside cool rose and purple tones creates a naturally sophisticated garden palette without any planning required. This is the dahlia for gardeners who want reliable color without overthinking it.
Unwins Dahlia excels as a cutting flower and a focal point in summer borders and mixed beds. The varied heights and flower forms work beautifully in both formal and cottage garden settings, and the long vase life makes these blooms valuable for fresh arrangements throughout the season.
No timeline data available yet for this variety.
Start seeds indoors 4 to 6 weeks before your last spring frost. Sow at a soil temperature of 70 to 75 degrees Fahrenheit, maintaining consistent warmth for reliable germination.
Transplant seedlings outdoors after all danger of spring frost has passed. Harden off seedlings gradually over 7 to 10 days before moving them into the garden permanently.
Direct sow seeds into the garden after all spring frosts have passed and soil has warmed, or start indoors for earlier blooms.
Enter your ZIP code to see a personalized growing calendar for this plant.
“Unwins Dahlia stands as a testament to the enduring appeal of mixed dahlia varieties in home gardens. This heirloom mix has earned its place through decades of consistent performance in gardens across North America and beyond, passed along by gardeners who returned to it year after year precisely because it delivered vibrant, unfussy color. Its survival and continued availability through seed companies like Baker Creek reflects the value gardeners place on varieties that perform reliably without special treatment.”