⭐ Advanced✂ Cut Flower🏆 Exhibition

AC ATM

Dark red blooms of outrageous scale that earn their place on the show bench

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Semi-Cactus · 10–12"RedKen Greenway (2022)United States

AC ATM is a semi-cactus dahlia that opens 10–12" blooms in red. Deep garnet flowers rise over the back of the border like slow fireworks, each one wide enough to shade the plants below. AC ATM builds its drama from sheer scale, opening bloom after bloom in a color that reads almost black at dusk. It was bred in United States by Ken Greenway in 2022.

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Availability & pricing

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Specifications

Physical

Form: Semi-Cactus
Bloom class: AAover 10"
Bloom size: 10–12"(25.4–30.5 cm)
Plant height: 54–60"

Color

Color: Red
Pattern: Solid
Tags: dark redgarnetcrimsonburgundydeep red

Growing context

Cut flower: ✓ Yes
Exhibition: ✓ Yes
Stem length: 30"

Provenance

2022
United States
Breeder: Ken Greenway

Grower Profile

Difficulty

Advanced

Ideal for

FloristsExhibitors

Growing AC ATM

Stake early and tie in as the stems stretch, because these heavy heads will topple in a summer storm. Give it a spot with full sun, rich soil, and steady water once buds form. Disbud down to one bloom per stem if you want the full show-bench size, and cut in the cool of the morning.

Spacing: Space about 3 ft apart
Staking: Stake early — stems carry heavy blooms and lean in wind

Frequently asked questions

How tall does AC ATM dahlia grow?

AC ATM reaches 54–60" at maturity, so plan to stake plants early to keep heavy blooms upright.

Is AC ATM dahlia good for cut flowers?

Yes — AC ATM is well suited for cutting, with approximately 5-day vase life. Stems typically reach about 30″.

Is AC ATM hard to grow?

AC ATM is rated challenging — it rewards experienced growers with patience and more attention to staking, feeding, and pest pressure than the average variety.