ALCEA rugosa

Russian Hollyhock

Jelitto Perennial Seeds: ALCEA rugosa - Russian Hollyhock Jelitto Perennial Seeds: ALCEA rugosa - Russian Hollyhock

Id-Code: AG 310 - JELITTO GOLD NUGGET SEED®
Family: Malvaceae
Origin: Ukraine and southern Russia
Special Features: Exceptional clear yellow blossoms and more disease resistance
Colour: Clear yellow
Natural Flowering Period: May - September
Winter Hardiness Zones: Z3-9
Growth Habit: Upright
Foliage: Rounded and lobed
Height with Flower: 200 cm (78'')
Spacing between Plants: 90 cm (36'')
Soil Requirement: Any well-drained soils, pH 5.8 - 6.8
Location: Full sun
Use: Plant together in the border with Stokesia 'Omega Skyrocket', Amsonia hubrichtii and Thalictrum rochebrunianum
Specialities: A species whose popularity has grown tremendously in the last few years.
Also available as normal seeds (AA 310)

Cultural Tips:
Grams per 1000 seeds: 5
Seeds per Gram: 200
Seeding Recommendation: 10 g / 1000 plants
Sowing Rate: 3-4 seeds per cell
Plug tray recommended size(s): 72, 128
Germination: JELITTO GOLD NUGGET SEED® germinate after 3 - 4 weeks, keep seed in constant moisture (not wet) with temperatures of about + 20°C (68°F). Seeds must be covered thinly. After germination, the seedlings must be kept cool (+5 to 10°C) (41 to 50°F) in the months with less daylight hours, but must not be exposed to frost. At this time, it is of great benefit if the seedlings can receive at least 12 hours of light per day.

Scheduling:
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 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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