Red Obsidian Dahlia
Description
Red Obsidian is a dramatic, near-black red dahlia with velvety petals that catch the light like polished stone, adding instant depth and sophistication to beds and bouquets. Its full, well-formed blooms sit on strong stems and pair beautifully with blush, peach, and white flowers for striking contrast. A standout choice for gardeners who love rich, moody color and dependable cut-flower performance.
Specifications
| Form | O |
|---|---|
| Color | DR |
How to grow Red Obsidian
Red Obsidian is a O. Plant tubers 12–18 inches apart in full sun after the last frost. Pinch when plants reach 12 inches tall to encourage bushier growth and more blooms.
Harvest & vase life
O-form dahlias like Red Obsidian harvest dahlias when blooms are three-quarters to fully open. With clean cuts and fresh water, most varieties last 4–7 days in the vase.
Similar dahlia varieties
- 20th Ave Estrella — O, DR
- Adam's Star — O, Y
- Agulhas — O, DR
- Alfra Angie — O, DB
- Alpen Chips — O, DR
- Alpen Nellie — O, PR
Frequently asked questions
What color is Red Obsidian?
DR — ADS color classification for Red Obsidian.
Is Red Obsidian good for cut flowers?
Yes. Dahlias are among the most popular cut flowers for home and market growers. Expect 4–7-day vase life with proper hydration.