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Sedum middendorffianum Yellow Diamonds

Bright yellow, star-shaped flowers cover the dense, nicely mounded habit.
  • Mounding habit provides a better presentation at retail and in the garden.
  • Striking color contrasts well against dark green foliage with red stems.
  • Blooms late Spring to Summer.
  • Deer and rabbit resistant; drought tolerant and low maintenance.

GENERAL INFORMATION

Scientific Name: Sedum middendorffianum
CommonName: Chinese Mountain Stonecrop
Hardiness Zone: 5a - 9a
Hardiness Degree: -20°F (-20°C)
Blooming Season: Late Spring, Summer
Plant Habit: Mounded
Characteristics: Attracts Bees, Attracts Butterflies, Drought Tolerant, Rabbit Resistant, Low Maintenance
Water: Light
Fertilizer: Once a month
Spacing: 15 - 18" (38 - 46cm)
Height: 7 - 10" (18 - 25cm)
Width: 13 - 16" (33 - 41cm)
Exposure: Sun

PROPAGATION

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
Mist: Low
Fertilization: 50 ppm N when roots become visible
Pinching: Typically not necessary in propagation.
Transplanting: 35-42 days after sticking
Comments: Do not over-mist. Oversaturated rooting media will slow the rooting process and contribute to stem rot. Remove from mist environment before or as soon as roots appear.

FINISHING

Media pH: 5.8-6.2
Temperature: Nights: 55 to 70°F (13 to 21°C) Days: 60 to 80°F (15 to 27°C)
Light Level (fc): 5,000 to 8,000
Vernalization: No
Daylength: Long day obligate
Watering: Allow media to dry slightly between watering.
Fertilization: Use a balanced fertilizer at a rate of 100 to 150 ppm.
Pinch After Transplant: One pinch, two to three weeks after transplant.
Plant Growth Regulators: PGRs generally not needed. B9 is effective if needed, especially under lower light conditions
Pests and Fungal Diseases: Generally pest and disease free.

CROP SCHEDULING

1–qt. (10–cm) pot, 1 plant per pot: Unrooted: 10-12 wks Rooted: 6 wks
1–gal. (15–cm) pot, 1 plant per pot: Unrooted: 12-14 wks Rooted: 8-10 wks
2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot: Not recommended
Bloom Months: July to August
Plant Protection
'Yellow Diamonds'
Protection Information : PP35,077
(Flowering Only License)
Breeder: Darwin Perennials
Sedum middendorffianum Yellow Diamonds
Photo:  Bloom Photo:  Commercial Landscape 1 Photo:  Commercial Landscape 2 Photo:  Container Photo:  Landscape