Hardiness: 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
Danger: Parts of plant are poisonous if ingested Handling plant may cause skin irritation or allergic reaction
Bloom Color: Red Scarlet (Dark Red) Silver/Gray
Bloom Time: Mid Summer
Foliage: Herbaceous Smooth-Textured
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)
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.
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!
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)
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 Ken Caryl, Colorado Jacksonville, Florida Hebron, Kentucky Brownsville-bawcomville, Louisiana South China, Maine Burlington, Massachusetts Ocean Grove, Massachusetts Springfield, Massachusetts Denville, New Jersey Winston-salem, North Carolina Bucyrus, Ohio Cleveland, Ohio Penn Wynne, Pennsylvania Warren, Pennsylvania Murfreesboro, Tennessee Fate, Texas Hudson, Texas Richmond, Texas Putney, Vermont Kalama, Washington