United States Edition

China aster 'Opus' frequently asked questions  

Callistephus chinensis

  • What is Opus's normal lifecycle?

  • What sort of plant is Opus?

  • Is Opus frost hardy?

  • How tall does Opus grow?

    70.0 cm / 2.27 feet
  • How wide does Opus grow?

    20.0 cm / 7.8 inches
  • What soil ph range should Opus be grown in?

    5.1 - 7.5
  • How much water does Opus require?

  • What soil should I grow Opus in?

  • How much sunlight does Opus need to grow?

    Partial Sun
  • Can Opus seeds be sown directly?

  • How far apart should you sow Opus?

    22.0 cm / 8.58 inches
  • What is the lowest temp that Opus will germinate at?

    21°C / 70°F
  • How far apart should Opus seedlings be planted?

    20.0 cm / 7.8 inches
  • How long does it take Opus to germinate?

    10 days Average 10 days | Min days | Max days (0)
  • How long does it take Opus to be ready to plant out?

    + 27 days Average 27 days | Min days | Max days (0)
  • How long does it take Opus to be ready for harvest?

    + days Average days | Min days | Max days (0)
  • How long does it take to grow Opus?

    = days
  • When after the last frost should Opus be sown?

    42 days before Last Frost Date
  • When after the last frost should Opus be sown?


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