GENERAL INFORMATION
Scientific Name: Agastache mexicana
CommonName: Mexican Giant Hyssop
Hardiness Zone: 7a - 10b
Hardiness Degree: 15°F (15°C)
Blooming Season: Late Spring, Summer, Late Summer
Plant Habit: Mounded
Characteristics: Attracts Bees, Deer Resistant, Attracts Hummingbirds, Scented Foliage
Water: Light
Fertilizer: None or when needed only
Spacing: 12 - 14" (30 - 36cm)
Height: 16 - 22" (41 - 56cm)
Width: 16 - 22" (41 - 56cm)
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 to moderate
Fertilization: 50-75 ppm N
Pinching: Recommended after roots are established. Leave 4-5 active internodes.
Transplanting: 28-35 days after sticking
FINISHING
Media pH: 5.8-6.2
Temperature: Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C)
Light Level (fc): 3,000 to 5,000
Vernalization: No
Daylength: Long day facultative
Watering: Allow media to dry regularly between watering.
Fertilization: Use a balanced fertilizer at a rate of 125 to 150 ppm.
Pinch After Transplant: Recommended
Plant Growth Regulators: PGRs generally not needed
Pests and Fungal Diseases: Thrips, white fly
CROP SCHEDULING
1–qt. (10–cm) pot, 1 plant per pot: Not recommended
1–gal. (15–cm) pot, 1 plant per pot: Unrooted: 15-17 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