The Dahlia Karma Prospero is a highly sought-after, waterlily-style decorative dahlia known for its soft lilac-pink petals and dark, highly sturdy stems. Bred in the Netherlands specifically for the cut-flower trade, this compact but productive dahlia offers excellent vase life (7–12 days) and produces upward-facing blooms that resist drooping in the rain. [1, 2, 3, 4]
Plant Specifications & Growing Details
- Bloom Size: 10 to 15 cm (4 to 6 inches) across
- Plant Height: 90 to 130 cm (35 to 50 inches)
- Bloom Time: Mid-summer (July) through the first fall frost
- Sun Exposure: Full sun is ideal for best blooming and stem strength
Planting & Care Tips
- Timing: Plant the dormant tubers in the spring after all danger of frost has passed, typically when the soil temperature reaches 15°C (60°F).
- Depth: Bury tubers about 10 cm (4 inches) deep with the “eye” or stem pointing upward. Space the tubers about 30–45 cm apart.
- Soil: Plant in well-drained, humus-rich, and nutritious soil.





