HELIANTHUS Microcephalus-Hybr 'Lemon Queen Strain'

Small-Headed Sunflower

Jelitto Perennial Seeds: HELIANTHUS Microcephalus-Hybr 'Lemon Queen Strain' - Small-Headed Sunflower Id-Code: HA 066
Family: Asteraceae, Compositae
Origin: Eastern North America
Special Features: Brilliant, late season, full flowering with light yellow blossoms and healthy foliage. Smallest flowers in the genus
History: Introduced by JELITTO PERENNIAL SEEDS in 2010
Colour: Light yellow
Natural Flowering Period: August - October
Winter Hardiness Zones: Z4-9
Growth Habit: Upright
Foliage: Oblanceolate leaves
Height with Flowers: 180 cm (70'')
Spacing between Plants: 60 cm (24'')
Soil Requirements: Moist, well-drained soils, pH 5.8 - 6.8
Location: Full sun to partial shade
Use: Plant this distinctive sunflower with Amsonia hubrichtii, Eupatorium 'Ivory Tower' and Gaura 'Summer Breeze'
Specialities: Cut flower candidate

Cultural Tips:
Grams per 1000 Seeds: 2,5
Seeds per Gram: 400
Seeding Recommendation: 6 g / 1000 plants
Sowing Rate: 2-3 seeds per cell
Plug tray recommended size(s): 128, 288
Germination: These seeds germinate rapidly depending on species and origin. If germination does not occur after 3-4 weeks a cooling period of 2-4 weeks is recommended.

Scheduling:
Best Sowing Dates: November - March
Sowing to Germination: 4 - 6 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Salable Plant: 6 - 8 weeks
Cutting-Back at Transplanting: Cut-back once to keep more compact

Growing On:
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2''); 2-3 plugs per 15 cm (6'')
Vernalization: A prudent recommendation would be to provide 6-12 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: This species is not a suitable candidate for forcing.
Fertilization: Medium (150-200 ppm)

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