GENERAL INFORMATION
Scientific Name: Saxifraga x arendsii
CommonName: Rockfoil
Hardiness Zone: 4a - 9b
Hardiness Degree: -25°F (-25°C)
Blooming Season: Early Spring, Spring
Plant Habit: Mounded
Characteristics: Frost Tolerant
Water: Light
Spacing: 7 - 9" (18 - 23cm)
Height: 4 - 6" (10 - 15cm)
Width: 5 - 7" (13 - 18cm)
Exposure: Partial Sun, 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: 500-100 ppm IBA basal dip
Mist: Low mist setting
Fertilization: 50-75 ppm N only after rooted
Pinching: None.
Transplanting: 49-56 days after sticking
FINISHING
Media pH: 5.8-6.2
Temperature: Nights: 55 to 65°F (13 to 17°C) Days: 60 to 80°F (15 to 27°C)
Light Level (fc): 5,000 to 8,000
Vernalization: Yes
Daylength: Day length neutral
Watering: Allow media to dry moderately between watering.
Fertilization: Use a balanced fertilizer at a rate of 125 to 150 ppm.
Pinch After Transplant: No
Plant Growth Regulators: B-Nine/Cycocel combination at 3,750 ppm, B-Nine/Cycocel 500 ppm before flowering. Sumagic spray can be used with caution after flowering if needed.
Pests and Fungal Diseases: Spider mites, thrips, bacterial spot, botrytis
CROP SCHEDULING
Bloom Months: March to June