ECHINOPS niveus (sphaerocephalus hort.) 'Arctic Glow'

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Pure seed ECHINOPS niveus (sphaerocephalus hort.)  'Arctic Glow' Portion(s) (Image Rights)

ECHINOPS niveus (sphaerocephalus hort.) 'Arctic Glow'

Globe Thistle
(sphaerocephalus)
Select Item No. EA012

Quantitative Restriction

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



Plant Description

Article Type: (pure seed)
Life Cycle: Perennial
Family: Asteraceae
Origin: Europe and Western Asia
Special Features: Large, rounded white flowers contrast beautifully with the sturdy reddish stems. Exquisite flower color, suitable for use as a cut flower.
Historical: Developed from ECHINOPS sphaerocephalus 'Niveus' and was introduced as a seed strain in 1997 from JELITTO PERENNIAL SEEDS.
 
Basic Colour: (white / cream)
Flower Colour: white
Natural Flowering Period: June - August
 
Winter Hardiness Zones: Z3 - Z8
Foliage: silvery-green
Growth Habit: erect / vigorous
Height with Flowers: 80 cm
Spacing between Plants: 45 cm
Soil Requirements: dry / well-drained / average
Location:
Usage: suitable for cutting
Grams per 1000 seeds: 18.18182 Gram
Seeds per Gram
(does not correspond to the number of plants!):
55
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
50 Gram
Sowing Rates/Trays: 6 per cell
Plug tray recommended size(s): open flats / 72
Sowing Direction:

(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):
Anytime
Sowing to Germination: 2 - 3 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") / 2-3 plugs per 15 cm (6")
Vernalization: Some flowering will occur the first year without vernalization, but improved flowering will occur the 2nd year; and 3-10 weeks of cool temperatures might benefit fuller flowering in the first year.
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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