PENSTEMON smallii

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GOLD NUGGET SEED ® PENSTEMON smallii   Seeds (Image Rights)

PENSTEMON smallii

Small's Penstemon
[Violet Dusk]
Select Item No. PG250

Also available as:

1000 Seeds

Available

There are no units prepacked, any seed amount is weighed individually.



Plant Description

Article Type: (GOLD NUGGET SEED®)
Life Cycle: Perennial
Family: Scrophulariaceae
Origin: North America: Appalachian Mountains
Special Features: A species of easy culture tolerant of rugged, sharply-drained conditions. Rich flowering. Grows naturally near cliffs, or steep slopes, at the forest's edge, often with a half day's shade. A species which will self-sow in naturalized conditions. Full sun in cool summer climates to semi-shade elsewhere.
 
Basic Colour: (violet)
Flower Colour: brilliant, purple-lilac with striped white throat
Natural Flowering Period: July - September
 
Winter Hardiness Zones: Z5 - Z8
Foliage: green with a hint of red
Growth Habit: upright, erect
Height with Flowers: 60 cm
Spacing between Plants: 45 cm
Soil Requirements: dry / well-drained
Location:
Grams per 1000 seeds: 0.15873 Gram
Seeds per Gram
(does not correspond to the number of plants!):
6300
Sowing Rates/Trays: 2 per cell
Plug tray recommended size(s): 128 / 288
Sowing Direction:

(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 to Germination: 3 - 4 weeks
Germination to Transplant: 4 - 8 weeks
Transplanting to Potting: 6 - 10 weeks
Cutting back at Transplanting: Cut-back once to keep more compact.
Container Size(s): 1-2 plugs per 11/12 cm (4 1/2")
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: Light (100-150 ppm)
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