GENTIANA dahurica

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GENTIANA dahurica

Xiaoquinjiao
[Nikita]
Select Item No. GA106

Available

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



Plant Description

Life Cycle: Perennial
Family: Gentianaceae
Origin: China, Mongolia and Siberia
Special Features: Clusters of deep blue tubular blooms all along the leaf axils. Grows easily. Good cut flower candidate. Full sun in cool summer climates to semi-shade elsewhere. Easy to grow. More flexibel pH than most other GENTIANA.
Historical: Gentiana root extract is collected from several Asian species, including G. dahurica, that is commonly referred to as Xiaoquinjiao.
 
Basic Colour: (blue)
Flower Colour: deep blue
Natural Flowering Period: June - July
 
Winter Hardiness Zones: Z3 - Z7
Foliage: narrow, shiny green leaves
Growth Habit: groundcover / cushion
Height with Flowers: 35 cm
Spacing between Plants: 40 cm
Soil Requirements: moist / well-drained
Location:
Usage: for the rock garden / suitable for cutting
Grams per 1000 seeds: 0.18182 Gram
Seeds per Gram
(does not correspond to the number of plants!):
5500
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
1 Gram
Sowing Rates/Trays: 4 - 5 per cell
Plug tray recommended size(s): 128 / 288
Sowing Direction:

(9) These seeds germinate rapidly depending on species and origin. If germination does not occur after 3–4 weeks a cooling period of 2–4 weeks is recommended.

Best Sowing Date
(northern Hemisphere, Field condition):
late autumn - early spring
Sowing to Germination: 6 - 8 weeks
Germination to Transplant: 6 - 8 weeks
Transplanting to Potting: 8 - 10 weeks
Cutting back at Transplanting: Cut back 1-2 times; once at transplanting; once again 4 weeks later to keep more compact.
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: There is no current research on vernalization but a prudent recommendation for any perennial would be 6-12 weeks (a few might need 15 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: 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.
Fertilizer: Medium (150-200 ppm)
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