RUDBECKIA missouriensis

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RUDBECKIA missouriensis

Missouri Coneflower, Black-Eyed Susan
Select Item No. RA173

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: Asteraceae
Origin: USA - Illinois, Missouri, Oklahoma, Arkansas, Texas and Louisiana
Special Features: Showy golden flowers with attractive, narrow, hairy stems and leaves. A good choice for naturalizing or for the border.
 
Basic Colour: (yellow / gold)
Flower Colour: golden with black center
Natural Flowering Period: July - September
 
Winter Hardiness Zones: Z5 - Z8
Foliage: lanceolate, narrow
Growth Habit: upright, erect / graceful
Height with Flowers: 40 cm
Spacing between Plants: 40 cm
Soil Requirements: dry / well-drained
Location:
Usage: honey-bee food plant / for the rock garden
Grams per 1000 seeds: 0.71429 Gram
Seeds per Gram
(does not correspond to the number of plants!):
1400
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
3 Gram
Sowing Rates/Trays: 3 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
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Not Necessary.
Container Size(s): 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: This species is not a suitable candidate for forcing.
Fertilizer: Medium (150-200 ppm)
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