Jeffrey Dahlia

ST · 5.5" bloom · 4 ft tall · Hybridized by Eugene Kenyon (2026) · USA

Jeffrey dahlia

Description

Jeffrey is a striking, garden-ready dahlia that produces well-formed blooms on sturdy stems, making it a dependable choice for both beds and cutting. Its richly colored flowers stand out beautifully against lush foliage and keep coming over a long summer-to-frost season, bringing consistent, high-impact color to the landscape and vase.

Specifications

FormST
ColorOR
Bloom size5.5"
Plant height4 ft
HybridizerEugene Kenyon
Year introduced2026
Country of originUSA

How to grow Jeffrey

Jeffrey is a ST 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

ST-form dahlias like Jeffrey 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 Jeffrey grow?

Jeffrey grows to about 4 ft.

What color is Jeffrey?

OR — ADS color classification for Jeffrey.

Who hybridized Jeffrey?

Eugene Kenyon, introduced in 2026.

Is Jeffrey 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.