ALTHAEA cannabina

Product 1252 From 3777
Zoom

ALTHAEA cannabina

Hemp Marsh Mallow, Palm Leaf Marshmallow
Select Item No. AA283

Quantitative Restriction

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



Plant Description

Life Cycle: Perennial
Family: Malvaceae
Origin: North Africa through Central Europe to the Caucasus and Southern Russia
Special Features: Blooms like hollyhocks and deeply lobed, hair leaves resembling Cannabis.
Historical: The stems have been used to make textiles and paper.
 
Basic Colour: (pink / salmon)
Flower Colour: lavender-rose with a darker eye
Natural Flowering Period: July - September
 
Winter Hardiness Zones: Z3 - Z10
Foliage: hairy top and bottom, deeply lobed
Growth Habit: upright, erect
Height with Flowers: 180 cm
Spacing between Plants: 80 cm
Soil Requirements: average
Location:
Characteristics: beneficial plant
Usage: honey-bee food plant
Grams per 1000 seeds: 4.44444 Gram
Seeds per Gram
(does not correspond to the number of plants!):
225
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
15 Gram
Sowing Rates/Trays: 3 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 to Germination: 3 - 6 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 8 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)
Jelitto · Seeds of more than 3700 different species and varieties

 

*: excl. TAX, excl. shipping