• Single stem
  • Annual
  • Yellow
  • Single

Sunzilla

Sunzilla Giant

Annual single stem sunflower in yellow, blooming in early summer, midsummer, and late summer. Large golden yellow flower heads on strong single stems 10 to 16 feet tall. Grown as an annual in every zone.

Single source

Buy from $4.39

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A Sunzilla sunflower flower up close on the plant
A Sunzilla sunflower flower up close on the plant

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Sunzilla sunflower plants in bloom in a garden
Sunzilla sunflower plants in bloom in a garden

At a glance

Flower form
Single stem Single
Colors
  • Yellow
Blooms
Early summer, Midsummer, Late summer
Vase life
Not grown for cutting
Height
10–16 ft (305–488 cm)
Sunlight
Full sun
Hardiness
Grown as an annual in every zone Annual
Planted as
Seed
Botanical name
Helianthus annuus

In the garden

  • Butterflies
  • Hummingbirds
  • Occasionally severely damaged by deer (Rutgers rating)

Find your frost dates and zone by ZIP code

Origin

F1 hybrid giant sunflower sold as a Renee's Garden exclusive, grown for height and edible seeds.

Sources

Where to buy

Prices rechecked daily
  • Renee's GardenSeeds

    Pack size not listed

    Check availability

    $4.39Checked Oct 14, 2026

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All photos

  • A Sunzilla sunflower flower up close on the plant
    A Sunzilla sunflower flower up close on the plant
  • Sunzilla sunflower plants in bloom in a garden
    Sunzilla sunflower plants in bloom in a garden

Questions

Is Sunzilla hardy in my zone?

Sunzilla is an annual: it flowers and sets seed in one season, so hardiness zone decides when to plant it, not whether it survives winter.

Does Sunzilla need full sun?

Sunzilla grows in full sun.

When does Sunzilla bloom?

Sunzilla blooms in early summer, midsummer, and late summer.

Is Sunzilla good for cutting?

Our sources don't list Sunzilla as a cut flower or give a vase life for it.