ERYNGIUM variifolium

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ERYNGIUM variifolium

Atlas Mountains Sea Holly
[Miss Marble]
Select Item No. EA173

Available

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



Plant Description

Life Cycle: Perennial
Family: Apiaceae
Origin: North Africa
Special Features: Attractive evergreen (in warmer zones) perennial with a clumping basal rosette of dark green leaves and extraordinary white veining. Grayish-white flower heads on short stems. An eye-catching foliage plant certain to attract impulse sales.
 
Basic Colour: (grey / black)
Flower Colour: grey
Natural Flowering Period: July - August
 
Winter Hardiness Zones: Z5 - Z9
Foliage: dark green with white marbling
Growth Habit: clumping
Height with Flowers: 40 cm
Spacing between Plants: 30 cm
Soil Requirements: dry / gritty / well-drained / average
Location:
Characteristics: ornamental foliage plant
Usage: honey-bee food plant / for the rock garden
Grams per 1000 seeds: 1.53846 Gram
Seeds per Gram
(does not correspond to the number of plants!):
650
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
5 Gram
Sowing Rates/Trays: 3 per cell
Plug tray recommended size(s): open flats / 72
Sowing Direction:

(16) See 15 with the exception of germination being slower and more irregular. This poses no problems.

(15) Rapidly germinating, keep seed in constant moisture (not wet) with temperatures of about +20°C [68°F]. Seeds must be covered thinly. Do not cover very small seeds, but tightly press into the earth. Keep in cooler conditions after germination occurs.

Best Sowing Date
(northern Hemisphere, Field condition):
late autumn - early spring
Sowing to Germination: 4 - 8 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 8 weeks
Cutting back at Transplanting: Not Necessary.
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2")
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: There has been no research, but 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. Some later flowering species can be forced in 14 - 16 weeks and perhaps sooner at warmer temperatures. Further experiments are warranted.
Fertilizer: Medium (150-200 ppm)
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