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Acidanthera (details)

By Contributor ; Updated September 21, 2017

(Acidanthera bicolor)

Peacock Orchid

  • AKA: Acidanthera
  • Botanical Name: Gladiolus callianthus

  • Planting Time: Spring

  • Height: up to 3.5 feet tall
  • Exposure: Sun
  • Soil: fertile, well-drained
  • Hardiness: Zones 6 and warmer
  • Bloom Time: mid-summer to fall
  • Uses: beds, borders, cutflowers
    Flowers are plesantly fragrant, so plant them where their fragrance can be appreciated.


  • For best effect, plant in clusters of 5-7
  • Space the corms 6 to 9 inches apart, 4 inches deep
  • In zones 6 and cooler corms must be lifted in the fall

Acidantheras need a long growing season, and in zones north of 6 it's a good idea to plant the corms indoors in pots about a month before last frost to give them a head start. Transfer the plants to the garden without breaking the soil balls, or plant pot and all in the garden. Cover plants if fall frosts arrive before flowering stops.


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