ALCEA (ALTHAEA) rugosa

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ALCEA (ALTHAEA) rugosa

Russian Hollyhock
Select Item No. AA310

Available

One Portion is usually sufficient for approx. 50 plants.
Please switch to gram for larger quantities.



Plant Description

Life Cycle: Perennial
Family: Malvaceae
Origin: Moldova to Azerbaijan
Special Features: Exceptional clear yellow blossoms, single, more disease resistance. A species whose popularity has grown tremendously in the last few years.
 
Basic Colour: (yellow / gold)
Flower Colour: clear yellow
Natural Flowering Period: May - September
 
Winter Hardiness Zones: Z3 - Z9
Foliage: orbicular to cordate, deeply lobed
Growth Habit: upright, erect
Height with Flowers: 200 cm
Spacing between Plants: 90 cm
Soil Requirements: well-drained / average
Location:
Characteristics: solitary plant
Usage: honey-bee food plant / suitable for cutting
Grams per 1000 seeds: 5.26316 Gram
Seeds per Gram
(does not correspond to the number of plants!):
190
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
20 Gram
Sowing Rates/Trays: 3 - 4 per cell
Plug tray recommended size(s): 72 / 128
Sowing Direction:

(8) These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight. For Alstroemeria we recommend to keep sowing for 3 weeks at approximately +30°C [86°F], then 3 weeks at +5°C [41°F], then at +21°C [70°F].

Best Sowing Date
(northern Hemisphere, Field condition):
late autumn - early spring
Sowing Time Hint: Varying temperatures beneficial, day 24°C, night 15°C.
Sowing to Germination: 4 - 8 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Cut-back once to keep more compact.
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.
Fertilizer: Medium (150-200 ppm)
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