Photo by Melody

PlantFiles: Hardy Gladiolus, Dwarf Gladiolus
Gladiolus nanus 'Atom'

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Gladiolus (GLAD-ee-oh-lus) (Info)
Species: nanus (NAN-us) (Info)
Cultivar: Atom

» View all varieties of Gladiolus

5 vendors have this plant for sale.

8 members have or want this plant for trade.

Tropicals and Tender Perennials

Unknown - Tell us

6-9 in. (15-22 cm)

USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun

Parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Scarlet (Dark Red)

Bloom Time:
Mid Summer


Other details:
Average Water Needs; Water regularly; do not overwater
Flowers are good for cutting

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Click thumbnail
to view:

By Joy
Thumbnail #1 of Gladiolus nanus by Joy

By Terry
Thumbnail #2 of Gladiolus nanus by Terry

By Joy
Thumbnail #3 of Gladiolus nanus by Joy

By kbaumle
Thumbnail #4 of Gladiolus nanus by kbaumle

By kbaumle
Thumbnail #5 of Gladiolus nanus by kbaumle

By vossner
Thumbnail #6 of Gladiolus nanus by vossner

By BDale60
Thumbnail #7 of Gladiolus nanus by BDale60

There are a total of 14 photos.
Click here to view them all!


6 positives
No neutrals
No negatives

Gardeners' Notes:

Positive elder85 On Mar 9, 2010, elder85 from Bucyrus, OH wrote:

I have grown 'Atom' for two years. I left the corms in the ground after the first season. We had the coldest winter temperatures in 20 years, down to minus 18 F, but with a heavy snowcover. All the corms survived, and the flowers more than doubled the second season. They are growing in a heavy clay-loam.


Positive MavisFlowers On Jun 3, 2009, MavisFlowers from Lufkin, TX (Zone 8a) wrote:

Wonderful, easy to grow glad with bright eye-catching blooms. Needs some staking but well worth it. The blooms are long lasting and heat tolerant. They are the first of a number of hybrid glads to bloom in my yard, right after my Byzantine glads. Highly recommended!

Positive Sneirish On Aug 16, 2008, Sneirish from Swansea, MA (Zone 6b) wrote:

This was my first year with these glads, and I was amazed at just how gorgeous they were when they bloomed. The vivid color was a definite eye-catcher. But I need to tell their story:

I bought these bulbs from Gurney's and they were labelled as "Redwing Butterfly" Gladiolus. When they bloomed they were true to the photo and description on their website. However, when I tried to find them in plant files, they weren't there. BUT, I saw the photos of this "Atom" and they were exactly the same. After a post to the Plant ID forum, we all decided that Gurney's had made up their own name for these, since there are no Glads with the registered name of "Redwing Butterfly." So I am posting my photo here and I am calling them "Atom." =o)

Positive BDale60 On Aug 16, 2007, BDale60 from Warren, PA (Zone 5a) wrote:

A beautiful glad, much admired by all who saw it in the garden or in the vase. This was the first of six varieties in our garden to bloom this season.

Positive vossner On Jun 7, 2007, vossner from Richmond, TX (Zone 9a) wrote:

So vibrant and beautiful!

Positive kbaumle On Jul 24, 2006, kbaumle from Northwest, OH (Zone 5b) wrote:

This delicate, picotee-edged mini glad is breathtaking! Its tall, slim profile necessitates staking, though, if it's to survive to fully bloom to the top. Doesn't keep in a vase as long as regular glads...maybe 3-4 days.


This plant has been said to grow in the following regions:

Montgomery, Alabama
Anchorage, Alaska
Happy Jack, Arizona
Little Rock, Arkansas
Williford, Arkansas
Knights Landing, California
Littleton, Colorado
Jacksonville, Florida
Hebron, Kentucky
West Monroe, Louisiana
South China, Maine
Burlington, Massachusetts
Springfield, Massachusetts
Swansea, Massachusetts
Denville, New Jersey
Winston Salem, North Carolina
Bucyrus, Ohio
Cleveland, Ohio
Warren, Pennsylvania
Wynnewood, Pennsylvania
Murfreesboro, Tennessee
Fate, Texas
Lufkin, Texas
Richmond, Texas
Putney, Vermont
Kalama, Washington

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