EUPHORBIA lathyris

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EUPHORBIA lathyris

Caper Spurge, Gopher Plant, Mole Plant
Select Item No. EA232

Also available as:

Quantitative Restriction

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



Plant Description

Life Cycle: Biennial
Family: Euphorbiaceae
Origin: Central, South and West Europe, Mediterranean: waste areas, forb vegetation areas.
Special Features: Strong stiff vertical stems with unique horizontal blue-grey leaves topped with umbel clusters of chartreuse blooms. A reseeding biennial. Avoid contact with the milky sap of the leaves that can cause dermatitis.
Historical: Genus allegedly named for Euphorbus, 1st century doctor to King Jubus II of Mauritania . E. lathyris has medicinal uses in chinese and european tradition.
 
Basic Colour: (yellow / gold)
Flower Colour: yellow-green
Natural Flowering Period: June - August
 
Winter Hardiness Zones: Z5 - Z9
Foliage: blue-grey, decussate leaves
Growth Habit: upright, erect / sturdy / tall
Height with Flowers: 90 cm
Spacing between Plants: 30 cm
Soil Requirements: dry / well-drained
Location:
Characteristics: toxic plant
Usage: honey-bee food plant
Grams per 1000 seeds: 40 Gram
Seeds per Gram
(does not correspond to the number of plants!):
25
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
100 Gram
Sowing Rates/Trays: 2 per cell
Plug tray recommended size(s): 72
Sowing Direction:

(1) Cold-germinators are still referred to as frost-germinators, although this isn’t quite correct. The sowing must be kept warm (about +18 to +22°C) [about 64 to 72°F] and moist for the first 2–4 weeks. After this period the sowing must be kept at a cold temperature (between –4 and +4°C) [between 25 and 39°F] for another 4–6 weeks. Colder temperatures of –5°C [23°F] are only advantageous for most species of the Ranunculus family. It is not so important if the temperature is higher or lower during the cooling period, but the cooling period has to be prolonged because the synthesis of the germination inducer, hormon-like acid, slows down or comes to a standstill.
It is beneficial to cover the sowing with snow during the cooling-period. The temperature below it usually keeps in the optimum range of –4 to 0°C [25 to 32°F]. The sowing is kept moist, and the melting snow helps to destroy the shell, which is advantageous for the germinating seedling. After this cooling-period the sowing may not be immediately exposed to high temperatures. The most effective temperatures are between +5 to +12°C [41 to 54°F], even if germination has started. The best location for this sowing, even in March, April and May, is the open field, the cold frame or a cold greenhouse.

Best Sowing Date
(northern Hemisphere, Field condition):
summer - autumn
Sowing to Germination: 8 - 10 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 4 - 6 weeks
Cutting back at Transplanting: Not Necessary.
Container Size(s): 1 plug per 8/9 cm (3 1/2") / 1-2 plugs per 11/12 cm (4 1/2") / 2-3 plugs per 15 cm (6")
Vernalization: A prudent recommendation would be to provide 6-12 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: This species is not a suitable candidate for forcing.
Fertilizer: Light (100-150 ppm)
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