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Rocco

A Dutch heirloom from 1962 that packs rich lilac globes onto prolific stems

Rocco dahlia bloom

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Pompon · 1.5–2"PurpleG.H. Lammerse (1962)Netherlands

Rocco was bred in Netherlands by G.H. Lammerse in 1962. Rich lilac-purple globes cover each plant from mid-summer through frost, with tightly inrolled petals forming near-perfect spheres. Rocco traces back to a Dutch breeding program in 1962 and has stayed in production ever since because the button-sized blooms hold their color without fading. Rocco is a pompon dahlia that opens 1.5–2" blooms in purple.

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Availability & pricing

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Specifications

Physical

Form
Pompon
Bloom class
Munder 4"
Bloom size
1.5–2"(3.8–5.1 cm)
Plant height
30–39"

Color

Color
Purple
Pattern
Solid
Tags
purplelilaclavenderboysenberryplumglobe

Growing context

Flowering season
All season
Cut flower
✓ Yes
Stem length
18"

Provenance

1962
Netherlands
Breeder
G.H. Lammerse

Grower Profile

Difficulty

Intermediate

Ideal for

HobbyistsFlorists

Growing Rocco

Plant in full sun and pinch the main stem at four to five leaf nodes to encourage branching. Stake early so stems stay straight as height increases. Cut frequently once blooms open to drive continuous production through the season. Lift tubers after the first frost and store in a cool, dry location over winter.

Spacing
Space roughly 2–3 ft apart
Staking
Staking recommended once buds set

Frequently asked questions

How tall does Rocco dahlia grow?

Rocco reaches 30–39" at maturity, so plan to stake plants early to keep heavy blooms upright.

When does Rocco dahlia bloom?

Rocco is in continuous bloom from midsummer through first frost.

Is Rocco dahlia good for cut flowers?

Yes — Rocco is well suited for cutting, with approximately 5-day vase life. Stems typically reach about 18″.

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