Arcada and Nordic Begonias

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Arcada and Nordic Begonias

Begonia ‘Arcada’

  • Excellent branching
  • Compact hanging habit
  • Full range of colors
  • Very floriferous!
  • Attractive, dark green foliage that is less prone to shipping damage

Begonia ‘Nordic’

  • Award winning garden performance
  • Very floriferous!
  • Large, striking flowers

Arcada & Nordic Begonia Culture Tips

Culture – Propagation of Unrooted Cuttings:

  • Rooting hormone is not necessary
  • Before callus formation there should be sufficient moisture in the rooting medium.
  • Provide media temperatures of 68-72°F (20-22°C).
  • Provide air temperatures of 70-80°F (21-26°C) days and 68-70°F (20-21°C) nights.
  • Relative humidity should be 75-90%.
  • Night mist may be required until callus formation or for 5-7 days.
  • Maintain 500-1.000 f.c. (5.4-11klux) of light.
  • Provide 16 hours days of lighting or use night interruption lighting to keep cuttings vegetative.
  • As roots form fertilize with 50-75 ppm 20-10-20.
  • In 14-21 days roots should have initiated.  At this time misting frequency should be reduced and night mist should be discontinued.
  • Increase light to 1,000-2,000 f.c. (11-22 klux).
  • Increase feed to 200 ppm alternating foliar feeds of 15-5-15 and 20-10-20.
  • Tone cuttings for 7 days once fully rooting with lower relative humidity and higher light (2,000- 3,000 f.c. [22-32 klux]).
  • Cuttings should be fully rooted and toned in 5 weeks

Culture – Finishing:

  • Transplant rooted cuttings to a well-drained, sterile media.
  • Container sizes:
    • 4” – 1 PPP
    • 6” or 1 gallon -1 PPP
    • 8” or 10” HB- 3-4 PPP
  • Temperatures:
    • Establish warm and continue for 4-6 weeks at 75°F (24°C)
    • Then reduce to 68-75°F (20-24°C) Days and 68-70°F (20-21°C) Nights
  • Light:
    • Target 4,000 f.c. (43 klux) with moderate temperatures
    • Reduce to 3,000 f.c. (32 klux) if temperatures exceed ideal range
    • Shade for late spring production
  • Irrigation/relative humidity management:
    • Keep foliage dry as much as possible
    • Irrigation early in the day may lead to foliage burn
    • Low relative humidity will burn foliage
  • Fertility:
    • Alternate 150 ppm 15-5-15 Cal Mag and 21-5-20. Fertilizers with low levels of phosphorus help to reduce stretch.
      • Maintain EC at 1.0-1.5 mS/cm and pH at 5.6-6.0.  Periodically leach to reduce salts
  • Pinching:
    • Soft pinch at 2-3 weeks for best plant habit
  • Spacing:
    • Space plants pot tight for 2-4 weeks after transplant
    • Space plants when foliage covers the container and before undesirable stretch
    • Recommended spacing:
      • 4”                                 8” x 8”
      • 6”                                 12” x 12”
      • 8” and 10” HB           18” x 18”

  • Photoperiod
    • Maintain 16 hour days or use night interruption lighting before April 1st until plants are two-thirds the desired finished height.
    • Remove any flower buds that initiate prematurely.
  • Height control:
    • B-Nine, Bonzi, Cycocel or A-Rest. Consult labels for recommended rates.
      • Avoid late applications which can distort flowers.
    • Responsive to DIF treatments.
    • Reduced fertility rates and slight moisture stress will also help control height
  • Pests and Diseases:
    • Pests – Mealybugs, thrips, and whiteflies
    • Diseases – Botrytis, powdery mildew, Pythium, Rhizoctonia, and INSV/TSWV
  • Scheduling from transplant:
    • 4”                            12-14 weeks
    • 6”/gallons       14-16 weeks
    • 8-10″HB              14-16 weeks


We hope the information provided will be helpful. It is based upon data and knowledge (including information provided by the recipient) considered to be true and accurate, but without independent investigation and is offered for the recipient’s consideration, investigation and verification, but we do not warrant the results to be obtained. Please read all statement, recommendations, or suggestions in conjunction with any conditions of sale or use which apply to any products, or systems recommended by us. No statement, recommendation, or suggestion is intended for any use which would infringe any patent/copyright.

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