ARUNCUS aethusifolius

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ARUNCUS aethusifolius

Dwarf Goat's Beard
[Noble Spirit]
Select Item No. AA944

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Plant Description

Life Cycle: Perennial
Family: Rosaceae
Origin: South Korea
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: Lovely feathery foliage. Flowers with partially red stems. Perennial Plant of the Year 2010 in Sweden. Full sun in cool summer climates to semi-shade elsewhere.
Historical: After a brief appearance in 1936 in Scotland (as Astilbe) this aruncus was lost from sight. In the seventies it reappeared, having been reintroduced by some Swedish botanists. Unfortunately they had brought back only male plants. Dick Lighty of the Longwood Botanic Garden, USA, arranged to bring back seeds and shared them with K. Jelitto, which ensured the seed crop in Europe. In 1984 Jelitto were then the first seed company in a position to sell this species of aruncus seeds.
 
Basic Colour: (white / cream)
Flower Colour: white
Natural Flowering Period: May - July
 
Winter Hardiness Zones: Z3 - Z9
Foliage: fern-like, fine feathered
Growth Habit: clumping / low-growing
Height with Flowers: 30 cm
Spacing between Plants: 25 cm
Soil Requirements: moist / well-drained
Location:
Characteristics: groundcover
Usage: for the rock garden / suitable for cutting
Portion weight: 0.012 Gram
Grams per 1000 seeds: 0.08333 Gram
Seeds per Gram
(does not correspond to the number of plants!):
12000
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
0.5 Gram
Sowing Rates/Trays: 6 per cell
Plug tray recommended size(s): 128 / 288
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 autumn - early spring
Sowing to Germination: 8 - 12 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 8 weeks
Container Size(s): 1 plug per 8/9 cm (3 1/2") / 1-2 plugs per 11/12 cm (4 1/2")
Fertilizer: Medium (150-200 ppm)
Jelitto · Seeds of more than 3700 different species and varieties

 

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