RM Copper Shimmer Dahlia
Description
RM Copper Shimmer glows with warm coppery-orange tones and a subtle metallic sheen that seems to catch the light from every angle. Its full, lush blooms are ideal for adding rich autumn color to the garden and make especially striking cut flowers thanks to their depth of color and standout presence. A reliable producer that brings instant warmth and sophistication to beds, borders, and bouquets.
Specifications
| Bloom size | 3" |
|---|---|
| Plant height | 4.5 ft |
| Hybridizer | Merle |
| Year introduced | 2026 |
| Country of origin | USA |
How to grow RM Copper Shimmer
RM Copper Shimmer is a dahlia with 4.5 ft tall with 3-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
Dahlia-form dahlias like RM Copper Shimmer 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
- RM Baby Girl — FD, DB
- RM Berry Kiss — FD, DP
- RM Hannah Joe — FD, L
- RM Moonlight — FD, L
- Rm Summer Haze — FD, BR
- RM Watermelon — FD, BI
Frequently asked questions
How tall does RM Copper Shimmer grow?
RM Copper Shimmer grows to about 4.5 ft.
Who hybridized RM Copper Shimmer?
Merle, introduced in 2026.
Is RM Copper Shimmer 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.