ALCEA Rosea-Hybr. Spotlight-Series 'Sunshine'

Hollyhock

Jelitto Perennial Seeds: ALCEA Rosea-Hybr. Spotlight-Series 'Sunshine' - Hollyhock Id-Code: AT 802 - JET® - pure seed
Family: Malvaceae
Origin: Turkey to Asia
Special Features: Consistent single flowers in bright yellow. Also available in dark black-purple ('Blacknight'), red colours ('Mars Magic') and pure white with yellow eye ('Polarstar')
History: Introduced by JELITTO PERENNIAL SEEDS in 2010. There is archaeological evidence of Alceas in Iraq dating 60000-80000 years old
Colour: Bright Yellow
Natural Flowering Period: May - October
Winter Hardiness Zones: Z3-9
Growth Habit: Upright
Foliage: Round, lobed leaves
Height with Flowers: 180 cm (70'')
Spacing between Plants: 60 cm (24'')
Soil Requirements: Well-drained soils, pH 5.8 - 6.8
Location: Full Sun
Use: Plant this extraordinary yellow flowering hollyhock together in the border with Echinacea 'Magnus Superior', Eupatorium fistulosum 'Ivory Towers' and Gaura 'Summer Breeze'
Specialities: Tremendous popular old-fashioned perennial

Cultural Tips:
Grams per 1000 Seeds: 5,555
Seeds per Gram: 180
Seeding Recommendation: 12 g / 1000 plants
Sowing Rate: 2-3 seeds per cell
Plug tray recommended size(s): 72, 128
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: Anytime
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: 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: Medium (150-200 ppm)

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