PRIMULA sieboldii

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GOLD NUGGET SEED ® PRIMULA sieboldii   Seeds (Image Rights)

PRIMULA sieboldii

Woodland Primula
Select Item No. PG898

Also available as:

1000 Seeds

Available

The minimum order quantity for this article are 200 seeds.

There are no units prepacked, any seed amount ( > minimum quantity) is weighed individually.



Plant Description

Article Type: (GOLD NUGGET SEED®)
Life Cycle: Perennial
Family: Primulaceae
Origin: Japan, Korea, Russia and China
Distinction: Award of Garden Merit (A.G.M.) from the Royal Horticultural Society.
Special Features: A lovely, hard-to-find, award-winning species for the woodland's edge. Early dormant foliage.
Historical: Species named for German born physician, Phillip Franz von Siebold (1796-1866) who, while teaching medicine in Japan, collected over 1,000 botanic accessions.
 
Basic Colour: (white / cream / pink / salmon / red / scarlet / purple)
Flower Colour: white, pink or purple
Natural Flowering Period: May - June
 
Winter Hardiness Zones: Z4 - Z7
Foliage: fuzzy, roundish to oblong, lobed, pale green
Growth Habit: clumping / dense
Height with Flowers: 25 cm
Spacing between Plants: 30 cm
Soil Requirements: moist / humus rich, fertile / cool
Location:
Usage: for the rock garden / suitable for cutting
Grams per 1000 seeds: 0.24096 Gram
Seeds per Gram
(does not correspond to the number of plants!):
4150
Sowing Rates/Trays: 2 - 3 per cell
Plug tray recommended size(s): open flats / 72 / 128
Sowing Direction:

(16) See 15 with the exception of germination being slower and more irregular. This poses no problems.

(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 Time Hint: Varying temperatures beneficial, day 24°C, night 15°C.
Sowing to Germination: 3 - 4 weeks
Germination to Transplant: 4 - 6 weeks
Transplanting to Potting: 6 - 8 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")
Vernalization: A prudent recommendation would be to provide 6-12 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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