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‘Atom’ Gladiolus

Gladiolus 'Atom'

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A glad for people who would normally never grow them, ‘Atom’ is about half the size of regular varieties, growing to at most 3 feet tall. This 1946 classic blends easily into perennial borders, and it won’t get lost because its flowers are blazing red cooled by a thin, silvery edge.

Noteworthy CharacteristicsShorter stature than most glads, with an eye-catching flower color that nevertheless fits well into borders.

CareFull sun to part shade in fertile, well-drained soil. Treat as annuals, or dig up and store 6 weeks after bloom (dip in fungicide and allow to dry for a few weeks).

PropagationSow seed at 59°F in spring. Separate cormlets when dormant.

ProblemsGladiolus corm rot (Fusarium), gray mold (Botrytis), viruses, aster yellows, spider mites, thrips, aphids.

  • Genus : Gladiolus
  • Plant Height : 1 to 3 feet
  • Zones : 10, 8, 9
  • Plant Width : 6 to 12 inches
  • Light : Full Sun to Partial Shade
  • Moisture : Medium Moisture
  • Growth Rate : Moderate
  • Maintenance : Moderate
  • Plant Type : Perennials
  • Flower Color : Red
  • Bloom Time : Summer
  • Plant Seasonal Interest : Summer Interest

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