RM Autumn Harvest Dahlia
Description
RM Autumn Harvest is a beautiful dahlia variety hybridized by Merle in 2026.
Specifications
| Form | FD |
|---|---|
| Color | BZ |
| Bloom size | 3" |
| Plant height | 5 ft |
| Hybridizer | Merle |
| Year introduced | 2026 |
| Country of origin | USA |
How to grow RM Autumn Harvest
RM Autumn Harvest is a FD with 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
FD-form dahlias like RM Autumn Harvest 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.
Where to buy RM Autumn Harvest tubers
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 Autumn Harvest grow?
RM Autumn Harvest grows to about 5 ft.
What color is RM Autumn Harvest?
BZ — ADS color classification for RM Autumn Harvest.
Who hybridized RM Autumn Harvest?
Merle, introduced in 2026.
Is RM Autumn Harvest 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.