RHODIOLA rhodantha

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RHODIOLA rhodantha

Queen's Crown, Redpod Stonecrop
Select Item No. RA089
Portion(s)

Quantitative Restriction

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



Plant Description

Life Cycle: Perennial
Family: Crassulaceae
Origin: USA (Montana to Arizona and New Mexico)
Special Features: Clusters of rosy-red blooms and stiff stems.
Historical: The Greek name, rhodantha, refers to rose flower.
 
Basic Colour: (pink / salmon)
Flower Colour: rosy-red
Natural Flowering Period: May - June
 
Winter Hardiness Zones: Z3 - Z8
Foliage: narrow, linear, succulent
Growth Habit: erect
Height with Flowers: 25 cm
Spacing between Plants: 45 cm
Soil Requirements: moist / along streamsides / average
Location:
Usage: for the rock garden / suitable for cutting
Grams per 1000 seeds: 0.10526 Gram
Seeds per Gram
(does not correspond to the number of plants!):
9500
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
0.5 Gram
Sowing Rates/Trays: 2 - 3 per cell
Plug tray recommended size(s): 72 / 128
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: 4 - 6 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: This species is not a suitable candidate for forcing.
Fertilizer: Light (100-150 ppm)
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