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Impressive Hardy Gladiolus
sas
Impressive Hardy Gladiolus
Impressive Hardy Gladiolus
Impressive Hardy Gladiolus
Impressive Hardy Gladiolus

Features

  • Hardiness Zone

    3-10
    Lift in Fall in zones 3-4

  • Bloom Time

    Mid to late summer

  • Height

    18 - 22 inches

  • Light

    Full Sun

  • Ships As

    9-10 cm bulb

  • Plant In

    Spring

  • Naturalizing
  • Deer Resistant
  • Attract Bees

Impressive Hardy Gladiolus

No lifting in most zones!

Impressive was developed to be hardy enough to be left in the ground year-round in most U.S. growing zones. Introduced in 1957, this time-tested gladiolus opens its dazzlingly bright blooms, 10 to 12 at a time, from mid to late summer. These eye-catching flowers are light pink with vivid pink to red markings, and are ideal in front of a border. We recommend planting a few bulbs each week instead of planting them all at once, to ensure a longer blooming period.Gladiolus nanus

12 Corms
Ships in Spring
$33.99 $18.99
Save 44%
SKU: 83311
(0 in cart)

Corms shipped directly from Holland

Trusted by gardeners for over 200 years

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  • Planting Instructions4-6" deep and 4-6" apart.
  • Light RequirementsFull Sun
  • Soil RequirementsWell drained
  • Will TolerateAcidic Soil, Clay Soil, Loamy Soil, Sandy Soil
  • Watering RequirementsAverage water needs. Water regularly, do not overwater.
  • Fertilization RequirementsOnce per year
  • PruningOnly to cut back spent flower stems.
  • Winter CareLift in fall if you live in zones 3-4 for winter storage. Replant the following spring after frosts are over.

Features

  • Hardiness Zone

    3-10
    Lift in Fall in zones 3-4

  • Bloom Time

    Mid to late summer

  • Height

    18 - 22 inches

  • Light

    Full Sun

  • Ships As

    9-10 cm bulb

  • Plant In

    Spring

  • Naturalizing
  • Deer Resistant
  • Attract Bees

About the Hybridizer

At Gebroeders Hermans in Voorhout, The Netherlands, gladiolus breeding is a family tradition. Founded in 1960, the nursery is now led by brothers Piet and Mart Hermans, with Piet guiding much of its breeding direction. For many years, he has concentrated on refining gladiolus for true garden performance—selecting for compact growth, sturdy, self-supporting stems and improved resistance to disease and pests.

Piet HermansPiet developed the revolutionary cultivars featured in our Hardy Gladiolus Collection, bred to stand upright without staking while delivering abundant colour in borders and cutting gardens. His work has helped reposition hardy gladioli from delicate showpieces to reliable landscape performers suited to a wider range of climates and conditions. Each introduction reflects careful selection for strength, floriferousness and overall garden value.

That commitment to excellence extends beyond the field. Gebroeders Hermans holds MPS-GAP certification, reflecting rigorous standards in environmental stewardship, cleanliness and worker safety. Through decades of focused innovation, Piet has helped ensure that the gladiolus cultivars bearing the Hermans name combine beauty with resilience—an approach that continues to set new standards for this classic flower in modern gardens.

Watch video to learn more about our Gladiolus

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