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Searching Genus for Penstemon

With one exception, this 250 member genus is North American. Includes some of our most beautiful flowers, grown for their showy spring and summer tubular blooms. Drought resistant and are best in sharply-draining soil and full sun. For more: The American Penstemon Society, 1569 South Holland Court, Lakewood, CO 80232 USA. Penstemons, Robert Nold, Timber Press, 1999 Northwest Penstemons, Dee Strickler, Flower Press, 1997


PENSTEMON digitalisEarly Summer2576
90cm  Zone: 2
A tall Penstemon native to eastern USA, widely introduced in eastern Canada. Spikes of bell-shaped, white flowers, often flushed pink with reddish stems. This penstemon is easier to grow in hot and humid summers than its western relatives. A rich soil may give plants up to 1.5m. Will grow in woodland.
Germination Instructions: Cold or GA-3 recommended.
100 seeds  $3.50   

PENSTEMON hirsutusAll Summer2579
1m  Zone: 3
Purplish to pink-violet or white flowers on a tall eastern penstemon for the border. Foliage reddens nicely. Will grow happily in heavy clay soil or better, if you've got it. Flowers over a long period. Full sun preferred. Seed wild collected in Ontario.
Germination Instructions: Easy, warm germinator.
100 seeds  $3.50   

PENSTEMON hirsutus pygmaeusEarly Summer to Fall2580
I like this dwarf form of the species. Grown en masse, it has a wonderful, almost luminescent effect at a distance when in full flower. Violet-pink flowers on short stems close to the foliage almost the entire gardening season. A small percentage may grow up to be the taller species type. Flowers sparsely first year from seed. Foliage colors red.
Germination Instructions: Easy, warm germinator.
50 seeds  $3.75   

PENSTEMON mensarumSum,mer2606
Tiger of Grand Mesa Beardtongue60cm  Zone: 4
An uncommon penstemon indigenous to Colorado. The elongated, slender stalk holds impressive cobalt blue to blue-tinged-purple flowers in whorls. A beautiful species for a not-too-dry rock garden.
Germination Instructions: Easy, warm germinator.
20 seeds  $4.25   

PENSTEMON procerusSummer2584
Slender Beardtongue30-45cm  Zone: 3
This easy-to-please, pretty, small species carries whorls of lilac to purple-blue to flowers on slender stems, which have been described as "stalks of blue flowers tiered like the roofs of a slender pagoda." This I collected in the SW Alberta Rockies, growing on steep mountain slopes.
Germination Instructions: Easy, warm germinator.
50 seeds  $4.00   

PENSTEMON strictusLate Spring2605
Rocky Mountain Penstemon60-90cm  Zone: 3
Native to south-western North America. Tall, showy spikes of intense deep blue-purple flowers last for over a month in late spring. Quite striking when in bloom. Spreads via stolons so it will form large clumps, in time. Makes a wonderful cut flower.
Germination Instructions: Easy, warm germinator.
30 seeds  $4.00   

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