Id-Code: AA 153
Family: Lamiaceae, Labiatae
Origin: Southwest USA
Special Features: Decorative, fragrant foliage and one of the hardiest and best flowering Agastaches with striking sunset orange and lavender blossoms
Colour: Sunset orange and lavender
Natural Flowering Period: June - September
Winter Hardiness Zones: Z6-10
Growth Habit: Bushy
Foliage: Scented, grey-green leaves
Height with Flower: 60 cm (24'')
Spacing between Plants: 60 cm (24'')
Soil Requirement: Dry, well-drained soils, pH 6.0 - 7.2
Location: Full sun with hot summer conditions
Use: Plant together in the dry garden with Acanthus mollis, Callirhoe involucrata and Penstemon grandiflorus
Specialities: Interesting potential as a cut flower
Cultural Tips:
Grams per 1000 seeds: 0,833
Seeds per Gram: 1200
Seeding Recommendation: 2 g / 1000 plants
Sowing Rate: 2 seeds per cell
Plug tray recommended size(s): 128, 288
Germination: Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. Seeds must be covered thinly. Keep in cooler conditions after germination occurs. The germination might be slower and more irregular. This poses no problems.
Scheduling:
Growing On:
Best Sowing Dates: Anytime
Sowing to Germination: 2 - 3 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Salable Plant: 6 - 10 weeks
Cutting-Back at Transplanting: Cut back 1-2 times; once at transplanting; once again 4 weeks later to keep more compact
Container Size(s): 1 plug per 8/9 cm (3 1/2''); 1-2 plugs per 11/12 cm (4 1/2''); 2-3 plugs per 15 cm (6'')
Vernalization: There is no current research on vernalization but a prudent recommendation for any perennial would be 6-12 weeks (a few might need 15 weeks!) at an average daily temperature of 40°F (5°C). Exposure to cold may not be necessary for flowering but might improve quality.
Forcing: An obvious place to experiment - following vernalization - would be raising daytime temperatures to 60° - 65°F (15° - 17°C). Provide 16 hours of continuous lighting. During the short days of winter, provide a night interruption lighting of 4 hours between 10:00 p.m. and 2:00 a.m.
Fertilization: Light (100-150 ppm)
