EUPHORBIA palustris

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EUPHORBIA palustris

Swamp Spurge
Select Item No. EA242

Also available as:

Quantitative Restriction

Article will be imported through the USDA. Show all USDA items.

1 Portion contains 20-250 seeds depending on value and size.
Please switch to gram for larger quantities.



Plant Description

Life Cycle: Perennial
Family: Euphorbiaceae
Origin: Europe to Caucusus
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: Low maintenance perennial. Avoid contact with the milky sap of the leaves that can cause dermatitis.
Historical: Garden writer, Graham Stuart Thomas calls this, 'One of the most spectacular of spring-flowering plants.'
 
Basic Colour: (yellow / gold)
Flower Colour: dark yellow
Natural Flowering Period: May - June
 
Winter Hardiness Zones: Z4 - Z8
Foliage: lanceolate leaves turning yellowish-orange in autumn
Growth Habit: erect / clumping
Height with Flowers: 100 cm
Spacing between Plants: 100 cm
Soil Requirements: moist / boggy / along streamsides / humus rich, fertile / loamy
Location:
Characteristics: toxic plant
Usage: honey-bee food plant / water or marshplant
Portion weight: 0.6 Gram
Grams per 1000 seeds: 8.69565 Gram
Seeds per Gram
(does not correspond to the number of plants!):
115
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
20 Gram
Sowing Rates/Trays: 2 per cell
Plug tray recommended size(s): open flats / 72
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
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2") / 2-3 plugs per 15 cm (6")
Fertilizer: Medium (150-200 ppm)
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