GENERAL INFORMATION
Scientific Name: Eupatorium dubium
CommonName: Joe-Pye Weed
Hardiness Zone: 3a - 9b
Hardiness Degree: -40°F (-40°C)
Blooming Season: Autumn, Late Summer
Plant Habit: Columnar
Characteristics: Attracts Butterflies, Deer Resistant, Heat Tolerant
Water: Medium
Fertilizer: Once a month
Spacing: 18 - 48" (46 - 122cm)
Height: 36 - 48" (91 - 122cm)
Width: 24 - 48" (61 - 122cm)
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 ppm IBA
Mist: High for first few days, then reduce to moderate.
Fertilization: 50-100 ppm N
Pinching: Recommended.
Transplanting: 42-49 days after sticking
FINISHING
Media pH: 5.8-6.2
Temperature: Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)
Light Level (fc): 5,000 to 8,000
Vernalization: No
Daylength: Long day obligate
Watering: Allow media to dry moderately between watering. Prefers moist soils.
Fertilization: Use a balanced fertilizer at a rate of 125 to 150 ppm.
Pinch After Transplant: Recommended
Plant Growth Regulators: Concise/Sumagic 30-60 ppm spray
Pests and Fungal Diseases: None noted
CROP SCHEDULING
1–qt. (10–cm) pot, 1 plant per pot: Not recommended
1–gal. (15–cm) pot, 1 plant per pot: Rooted: 20 wks
2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot: Rooted: 20 wks
Bloom Months: July to September