Dandy Collarette Dahlia is a compact flowering variety that brings theatrical charm to gardens in zones 3 through 11. Growing just 12 to 18 inches tall with a spreading habit around 30 inches wide, these plants produce the signature collarette form: a distinctive ring of shorter, ruffled petals cradling the center like a jaunty collar. The seed mix delivers striking color contrasts across burgundy, orange, pink, and cream, with inner and outer petals often displaying bold combinations. Reaching blooming size in about 70 days, they flower prolifically through the season and work beautifully in borders, containers, and cutting gardens.
—
—
3-11
18in H x 30in W
—
High
Hover over chart points for details
The collarette form sets this dahlia apart: a unique double-layered petal structure where a frilly inner collar of shorter petals frames the flower's center, creating an elegant ruffled effect you won't find in single or standard dahlia forms. The vibrancy comes from a multi-colored seed mix that produces burgundy, orange, pink, and cream blooms, often with striking contrast between the inner collar and outer petals. For a flower that reaches maturity in just 70 days and stays compact enough for smaller gardens and containers, this variety packs unusual refinement and prolific color.
Dandy Collarette Dahlias are grown primarily for their ornamental flowers. Their compact size and abundant blooms make them excellent additions to mixed flower borders, cottage gardens, and container plantings. The collarette form and striking color combinations also render them appealing as cut flowers for fresh arrangements.
No timeline data available yet for this variety.
Start dahlia tubers indoors about 4 to 6 weeks before your last spring frost, placing them in warm soil around 65 to 70 degrees Fahrenheit. If growing from seed, sow indoors 6 to 8 weeks before the last frost date on the soil surface or just barely covered, keeping soil warm and moist.
Transplant dahlia seedlings or rooted tubers outdoors after all danger of frost has passed and soil has warmed to at least 60 degrees Fahrenheit. Harden off seedlings by gradually exposing them to outdoor conditions over 7 to 10 days. Space plants 12 inches apart with rows 18 inches apart.
Dahlias are typically not direct-seeded outdoors in cooler zones due to their long growing season; start seed indoors for better results.
Pinch or remove the center growing tip when plants are 6 to 8 inches tall to encourage a bushier, more compact habit with more flowering stems. Deadhead spent blooms regularly to keep flowers coming throughout the season.
Enter your ZIP code to see a personalized growing calendar for this plant.