RM Frosty Dahlia

5.5" bloom · 4 ft tall · Hybridized by Merle (2025) · USA

Description

RM Frosty is a crisp, cool-toned beauty featuring snowy white blooms often kissed with soft lavender-pink blush at the petal tips, giving it an icy, frosted look in the garden. Its fully double, neatly layered flowers are held on strong stems, making it an excellent choice for clean, elegant bouquets and brightening late-summer borders. A reliable bloomer with a refined, luminous presence, RM Frosty pairs beautifully with both pastels and bold companion colors.

Specifications

ColorW
Bloom size5.5"
Plant height4 ft
HybridizerMerle
Year introduced2025
Country of originUSA

How to grow RM Frosty

RM Frosty is a dahlia with 4 ft tall with 5.5-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

Dahlia-form dahlias like RM Frosty 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

Frequently asked questions

How tall does RM Frosty grow?

RM Frosty grows to about 4 ft.

What color is RM Frosty?

W — ADS color classification for RM Frosty.

Who hybridized RM Frosty?

Merle, introduced in 2025.

Is RM Frosty 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.