RM Riann Dahlia
Description
RM Riann is a refined, cut-flower standout, producing beautifully formed blooms on strong, productive plants that keep sending up stems all season. Its polished, symmetrical flowers and excellent vase life make it a reliable choice for bouquets, while the vigorous growth habit performs well in both garden beds and dedicated cutting patches.
Specifications
| Form | FD |
|---|---|
| Color | PK |
| Bloom size | 2.5" |
| Plant height | 4.5 ft |
| Hybridizer | Merle |
| Year introduced | 2026 |
| Country of origin | USA |
How to grow RM Riann
RM Riann is a FD with 4.5 ft tall with 2.5-inch blooms. 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
FD-form dahlias like RM Riann 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 & Baker Rd — FD, W
- 20th Ave Pure Prince — FD, L
- 20th Ave Rayna — FD, DP
- 20th Ave Softer Peach — FD, PK
- AC Devin — FD, DB
- Ace Summer Sunset — FD, LB
Frequently asked questions
How tall does RM Riann grow?
RM Riann grows to about 4.5 ft.
What color is RM Riann?
PK — ADS color classification for RM Riann.
Who hybridized RM Riann?
Merle, introduced in 2026.
Is RM Riann 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.