• Dark, ruffled Black Star gladiolus flowers with a deep burgundy or black hue against a blurred green background.
  • Graphic for gladiolus bulbs with a bouquet of flowers and product details on a white background.
  • Comparison chart between Eden Brothers and generic seeds, highlighting advantages of Eden Brothers' products.
  • List of reasons why gardeners love flower bulbs with icons and text on a scenic background.
  • A close-up shot of several brown gladiolus bulbs, showing their fibrous texture and ready to plant.
Spring Preorder
Ships Spring 2027

Gladiolus Flower Bulbs - Black Star

This beauty is the darkest of all our gladiolus offerings

Size
Season
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About the Variety

Key Features

Heat Tolerant
Prefers Moist Soil
Container Friendly
Attracts Bees
Attracts Butterflies
Attracts Hummingbirds
Fast Growing
Easy to Grow
Perfect for Cut Flowers
Perfect for Borders

Plant Details

BOTANICAL NAME

Gladiolus

LIFE CYCLE

  • Perennial

SEED TYPE

  • Bulb

LIGHT REQUIREMENT

  • Full Sun

BLOOM SEASON

  • Summer through Late Summer

GROWTH HABIT

  • Upright

PLANT HEIGHT

  • 48 to 60 inches

COLOR

  • Black
  • Red

Do you like a little drama in your garden? Our Black Star gladiolus will provide the right kind of drama. The flowers on this gladiolus are a deep red with a subtle contrasting stripe along the petals. Create a touch of cinematic flair when you plant these in your garden or in a potted container.

  • • Perennial; Like a deep merlot wine, this surely is a unique flower
  • • Mid Summer Blooming, Effortless to Grow, Deer Resistant, Hummingbird and Butterfly friendly
  • • Prefers Full Sun

Planting Information

PLANTING SEASON

  • Spring

SOWING METHOD

  • Direct Sow

PLANTING DEPTH

  • 4 to 6 inches Deep

WATER NEEDS

  • Average

PLANT SPACING

  • 5 inches

HARDINESS ZONES

  • 8
  • 9
  • 10
  • 11

COVERAGE

Amount Recommended Coverage
10 Bulbs / Ships in Spring Up to 10 Sq. Ft
20 Bulbs / Ships in Spring Up to 2 Sq. Ft
50 Bulbs / Ships in Spring Up to 4 Sq. Ft

Planting Guide

View our Gladiolus Planting Guide to learn more.

Ready to Grow

We guarantee that our seeds & bulbs will be true to type and ready to thrive. If something doesn't grow as expected, we will make it right. Questions? Call us at 855-440-2929

All gladiolus
Grown by Our Community 

    Gladiolus Flower Bulbs - Black Star FAQs

    What size bulbs will I receive with Black Star Gladiolus Flower?

    The bulbs for Black Star Gladiolus Flower measure 12 to 14 cm in circumference.

    What is Black Star Gladiolus also known as?

    Black Star Gladiolus is also known as Sword Lily.

    Customer Reviews

    Overall rating: 3.3 / 5 from 6 reviews.

    Customer photo review of Gladiolus Flower Bulbs - Black Star

    Buds are jet black. Flowers are stunning. Photo taken with the late afternoon sun on the blooms, making them appear more fuchsia, however they are a very deep red/burgundy.

    Linda 5/5

    Gladiolus Flower Bulbs - Black Star

    Customer photo review of Gladiolus Flower Bulbs - Black Star

    Although these flowers are unique and beautiful, the pictures on the website listing are a bit misleading. I would say these flowers lean more toward red and burgundy. Certainly not as dark as the website photos appear.

    Nicole 2/5 Verified

    Gladiolus Flower Bulbs - Black Star

    Store owner replied: Hello Nicole. Thank you for your review of our Gladiolus Flower Bulbs – Black Star. We’re glad to hear you found the blooms unique and beautiful, though we understand your concern about the color not appearing as dark as expected. Bloom shades can sometimes vary due to soil, climate, and growing conditions, but we truly appreciate your feedback, as it helps us ensure our product listings more accurately reflect what customers may experience. We appreciate you taking the time to reach out to us and giving us a chance to make it right with you!

    No blooms :(

    Courtney D. 1/5 Verified

    Gladiolus Flower Bulbs - Black Star

    Store owner replied: Hello Courtney D. Thank you for your review of Eden Brothers! We greatly appreciate you bringing this to our attention. It's so important to have feedback like this so we can continually improve our products and planting expectations. When planted later in the season, intense summer heat can put stress on the plant before it has a chance to establish strong roots, which may delay or even prevent blooming. After speaking with our Customer Service Team, it seems we were able to resolve this for you. Thanks for your time in sharing your experience with us!

    They are growing in a container. They look really healthy. But they have not bloomed yet. I planted them late - since I bought them on sale.

    Diane G. 4/5 Verified

    Gladiolus Flower Bulbs - Black Star

    These came up, but there were absolutely no blooms, and I think it was because I did not plant them deeply enough. I'm hoping that next year they may come up and bloom but any advice would be appreciated. They look absolutely stunning in the picture.

    Julia J. 3/5 Verified

    Gladiolus Flower Bulbs - Black Star

    Store owner replied: Hello Julia J. Thank you for your review of Eden Brothers! We truly appreciate you taking the time to share your experience, as feedback like this helps us improve our products and planting information. Shallow planting combined with later planting, heat stress, inconsistent watering, or limited sun, can all impact flowering. From our follow-up with Customer Service, it looks like we were able to assist you, and we’re glad we could help. Thank you again for bringing this to our attention!

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