JUNCUS inflexus

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JUNCUS inflexus

Hard Rush, Blue-green Rush, European Meadow Rush
[Blue Arrows]
(glaucus)
Select Item No. ZA232

Available

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



Plant Description

Life Cycle: Perennial
Family: Juncaceae
Origin: Europe (Northern temperature regions)
Special Features: Interesting blue-green color. Flowers are brown, clusters appearing close to the tip of the stem. Poisonous to livestock, avoid lime.
 
Basic Colour: (brown)
Flower Colour: brown
Natural Flowering Period: June - August
 
Winter Hardiness Zones: Z3 - Z10
Foliage: stiff stems of a blue-green (glaucus) color
Growth Habit: upright, erect / clumping / dense / vigorous, strong growing
Height with Flowers: 50 cm
Spacing between Plants: 45 cm
Soil Requirements: boggy / humus rich, fertile
Location:
Usage: water or marshplant
Grams per 1000 seeds: 0.02381 Gram
Seeds per Gram
(does not correspond to the number of plants!):
42000
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
0.25 Gram
Plug tray recommended size(s): deep open flats
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):
late summer - late autumn
Sowing to Germination: 8 - 10 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 2 - 8 weeks
Cutting back at Transplanting: Not Necessary.
Container Size(s): 1 plug per 8/9 cm (3 1/2") / 2-3 plugs per 15 cm (6")
Vernalization: No vernalization required for flowering in the first year.
Forcing: This species is not a suitable candidate for forcing.
Fertilizer: Light (100-150 ppm)
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