Details of...
Scientific Name: Penstemon cvs.
Pronunciation: pen-STEE-mun
Common Name: beard tongue
Family Name: Plantaginaceae
Plant Type: Herbaceous perennial
Key ID Features: Varied leaves/flowers; leaves opposite or whorled; flowers tubular, funnel-shaped, racemes/panicles, linear to lanceolate, small/large.
Course(s): HORT 2355, Level 4 Apprenticeship

Habit: Arching, Open, Spreading
Form: Round
Texture: Medium - fine
Mature Size:
Height:0.4 - 0.7m
Spread:0.6 - 1.0m
Growth Rate:Fast
Origin: Garden origin
Hardiness Rating: Zone 7: (-18 to -12 C)
Exposure: Filtered shade, Full sun, Part sun/part shade
Soil/ Growing Medium: Humus rich, Well-drained
Water Use: Low
Landscape Uses: Attract beneficial insects, Attract birds, Attract butterflies, Container planting, Cut flower or foliage, Fall interest, Group or mass planting, Mixed shrub border, Perennial border, Summer interest
Additional Info: Google. Cultivars shown or on campus may include P. 'Andeken an Friedrich Hahn’, P. 'Andeken an Friedrich Hahn’, P. 'Papal Purple', P. 'Rich Ruby', P. 'Snowstorm', and P. 'Phoenix Maggenta'.
beard tongue
Leaf Morphology:
Form: Simple
Arrangement: Opposite
Texture/ Venation: Soft flexible
Surfaces: Glabrous
Colour in Fall: Green, Purple
Leaf(let) Terms:
Shapes: Lanceolate
Margins: Serrulate

Inflorescence Type: Floriferous, Raceme
Flower Morphology:Flowers perfect
Number of Petals:5
Corolla Shape:Bilabiate
Colour (petals): Showy, Dark-red, Red, Blue, White, Pink, Violet, Purple
Flower Scent: None
Flower Time at Peak: Jul, Aug, Sep, Oct

Fruit Type: Capsule
Fruit Colour: Green, Brown
Fruiting Time: Sep, Oct, Nov
Additional Info: Not showy

Bark Morphology: Smooth
Bark or Stem Colour: Red, Green

Propagation: Softwood cuttings, Layering
Plant Care:
Pest Susceptibility: Rabbit resistant, Drought resistant, Slugs or snails
(NRY) NuRserY
(PDW) PonD West
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