PENSTEMON speciosus

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PENSTEMON speciosus

Royal Penstemon
(glaucus)
Select Item No. PA257

Available

Article will be imported through the USDA. Show all USDA items.

1 Portion contains 20-250 seeds depending on value and size.
Please switch to gram for larger quantities.



Plant Description

Life Cycle: Perennial
Family: Scrophulariaceae
Origin: California
 
Basic Colour: (blue)
Flower Colour: blue-violet
Natural Flowering Period: May - July
 
Winter Hardiness Zones: Z5 - Z9
Growth Habit: erect
Height with Flowers: 40 cm
Soil Requirements: dry / well-drained
Location:
Usage: for the rock garden
Portion weight: 0.25 Gram
Grams per 1000 seeds: 1.92308 Gram
Seeds per Gram
(does not correspond to the number of plants!):
520
Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
5 Gram
Sowing Direction:

(8) These perennial seeds germinate very irregularly over a long period. Lower temperatures of less than +5°C [41°F] are very effective. Seed trays should not be discarded prematurely. Constant moisture must be maintained. Do not leave in direct sunlight. For Alstroemeria we recommend to keep sowing for 3 weeks at approximately +30°C [86°F], then 3 weeks at +5°C [41°F], then at +21°C [70°F].

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