Vegetative Variety

Sedum middendorffianum Yellow Diamonds

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Data is gathered from our West Grove, Pa., trials (Zone 6a). Southern growers: expect 1-2 weeks earlier finishing. Northern growers: 1 week slower. Consider summertime scheduling accurate. Dates based on a standard 72 liner size.

Week color desired
URC stick week
Liner transplant week
Early Spring
(1 ppp)
(1 ppp)
Good item for quart production. Will need LD lighting to flower before week 26 in northern climates. Weeks to finish will be reduced by about 3 with lighting or in Southern climates.
(1 ppp)
(1 ppp)
Good item for quart production.
Sedum middendorffianum Yellow Diamonds
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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
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 Guide
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.