DICTAMNUS albus var. purpureus

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DICTAMNUS albus var. purpureus

Burning Bush, Gas Plant, Dittany, Diptam (Bai-Xian-Pi)
(fraxinella)
Select Item No. DA340

Also available as:

Available

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



Plant Description

Life Cycle: Perennial
Family: Rutaceae
Origin: Europe and Asia
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: This long-lived member of the citrus family has shiny green foliage with a fruity fragrance when crushed, but the resins can cause dermatitis. White roots. Attracts honey bees. Purple buds. TCM plant.
Historical: Grown in gardens since the Roman Empire. Volatile plant oils that can be ignited - with some difficulty - have occasionally linked this to the Biblical Burning Bush.
 
Basic Colour: (pink / salmon)
Flower Colour: soft pink with dark veines
Natural Flowering Period: May - June
 
Winter Hardiness Zones: Z3 - Z8
Foliage: shiny green leaflets
Growth Habit: erect / vigorous
Height with Flowers: 80 cm
Spacing between Plants: 80 cm
Soil Requirements: well-drained / average
Location:
Characteristics: medicinal plant
Usage: honey-bee food plant
Grams per 1000 seeds: 15.38462 Gram
Seeds per Gram
(does not correspond to the number of plants!):
65
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
40 Gram
Sowing Rates/Trays: 5 - 6 per cell
Plug tray recommended size(s): open flats / 72
Sowing Direction:

(19) To stop the germination inhibition give seeds a warm compost (about +22°C) [about 72°F] with constant humidity for at least 6 weeks. Then keep cold (–4 to +4°C) [25 to 39°F] for 6–8 weeks. Usually, the germination starts at +4°C [39°F]. Raise temperatures gradually up to +10°C [50°F] until germination is completed. If the warm or cold period was not long enough the seeds will not germinate until the following year. They will then need another warm period (summer) and a cold period (winter). Well-known examples: Cimicifuga and Helleborus.

Best Sowing Date
(northern Hemisphere, Field condition):
early autumn - early winter
Sowing to Germination: 15 - 20 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Not Necessary.
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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