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Iberis Summer Snowdrift

Scientific Name : Iberis hybrid
Common Name : Candytuft
Hardiness Zone : 6b - 9a
Hardiness Degree : 0°F (-18°C)
Blooming Season : Autumn, Late Summer, Early Spring, Spring, Late Spring, Summer
Plant Habit : Mounded
Characteristics : Frost Tolerant
Water : Medium
Fertilizer : Once a month
Spacing : 14 - 16" (36 - 41cm)
Height : 10 - 12" (25 - 30cm)
Width : 12 - 14" (30 - 36cm)
Exposure : Sun
General Information : This beautiful Summer Candytuft is a short-lived perennial plant in the South and wonderful addition to the annual garden in the North.
It will bloom from mid-Spring until late-Summer, requiring very little care.
Idea & Tips : Plants prefer a full-sun location but will tolerate part shade. Fertilize once per month with a balanced flowering plant food. 
Grower InformationPure white flowers have an extremely long flowering window for a longer selling season.
  • No vernalization needed for flowering.
  • Extend the Iberis selling window in the South.
  • Use as an alternative to Lobularia in mixed containers.
  • High heat tolerance.
  • Tender perennial in the South, great annual in the North.
'Summer Snowdrift'
Protection InformationPP30,713
(Flowering Only License)
Breeder : Darwin Perennials
  • Propagation Guide

    • Media EC/pH:
      EC 0.75-0.80 mmhos/pH 5.8-6.2
      Soil Temperature:
      70-72°F (21-22°C)
      Rooting Hormone:
      500 ppm IBA
      Low to moderate
      50-75 ppm N when roots become visible
      Recommended after roots are established. Leave active internodes.
      28-35 days after sticking
      Use low mist settings; do not oversaturate rooting media. Root zone temperatures of 70°F (21°C). Remove flowers in propagation. Cuttings typically arrive with flowers already induced due to cool night temperatures in Colombia. Non-induced cuttings require 6 weeks of night temperatures below 55°F (13°C) to flower.
  • Finishing Guide

    • Media pH:
      Nights: 45 to 55°F (7 to 13°C) Days: 55 to 65°F (13 to 18°C)
      Light Level (fc):
      3,000 to 5,000
      Cuttings supplied from Darwin Colombia receive enough cold to induce into flower, so growers will not need to vernalize.
      Day length neutral
      Allow media to dry regularly between watering.
      Use a balanced fertilizer at a rate of 125 to 150 ppm.
      Pinch After Transplant:
      Plant Growth Regulators:
      PGRs generally not needed
      Pests and Fungal Diseases:
      May experience root rot diseases under poor growing conditions. Aphids
  • Crop Scheduling

    • 1–qt. (10–cm) pot, 1 plant per pot:
      Unrooted: 10-14 wks Rooted: 8-10 wks
      1–gal. (15–cm) pot, 1 plant per pot:
      Unrooted: 16-18 wks Rooted: 10-12 wks
      2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot:
      Unrooted: 19-22 wks Rooted: 12-14 wks
      Bloom Months:
      April to September

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