• Grandiflorus
  • Perennial
  • Zones 7–10 (genus)
  • Burgundy
  • Single

Black Surprise

Perennial grandiflorus gladiolus in burgundy, blooming in midsummer and late summer. Dark red to deep maroon, nearly black florets 4 to 5 inches across, with a small white stripe on the center petal per Gurney's. USDA zones 7–10.

Cross-referenced · 4 sources

Buy from $14.99

At a glance

Flower form
Grandiflorus Single
Colors
  • Burgundy
Blooms
Midsummer, Late summer
Vase life
Not grown for cutting
Height
3½–4 ft (102–127 cm)
Sunlight
Full sun
Hardiness
USDA zones 7–10 Perennial

Zones given for the genus, per NC State Extension; the sellers do not list zones for this variety.

Planted as
Corm
Botanical name
Gladiolus × hortulanus

In the garden

  • Seldom severely damaged by deer (Rutgers rating)

Find your frost dates and zone by ZIP code

Origin

Large-flowered gladiolus sold by Holland Bulb Farms and Gurney's.

Sources

Where to buy

Prices rechecked daily
  • Gurney'sBulbs

    Pack size not listed

    Check availability

    $14.99Checked Nov 1, 2026
  • Holland Bulb FarmsBulbs

    Pack size not listed

    Check availability

    Check price at shop

We may earn a commission when you buy through these links. Your price stays the same. Prices checked Nov 1, 2026.

Questions

Is Black Surprise hardy in my zone?

Black Surprise survives winter in the ground in USDA zones 7 to 10. In colder zones treat it as an annual or lift it before the ground freezes.

Does Black Surprise need full sun?

Black Surprise grows in full sun.

When does Black Surprise bloom?

Black Surprise blooms in midsummer and late summer.

Is Black Surprise good for cutting?

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