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A picture of a Prairie Beardtongue

Prairie Beardtongue

Penstemon cobaea

Also known as

Prairie Penstemon, Foxglove Penstemon, Foxglove Beardtongue, False Foxglove, Large-Flowered Penstemon, Large-Flowered Beardtongue, Cobaea Penstemon, Cobaea Beardtongue, Wild Foxglove

Photo by Annika Lindqvist (CC BY 4.0)

Partial Shade
Easy care
Moderate watering
Tender

H7-H1a

RHS hardiness

-20°C

Minimum temperature

Expected size

Height
Spread

60cm

Max

45cm

30cm

Min

30cm

2 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has a mild fragrance

More images of Prairie Beardtongue

A close up of the newly developing green buds of Prairie Beardtongue at the top of a stem of green leaves.
A brown stem of ripe Prairie Beardtongue seedheads.
A close up of the pale pink with purple marks flower of Prairie Beardtongue.
A close up of the pale pink with purple marks flower of Prairie Beardtongue.
A close up of the pale pink with purple marks flower of Prairie Beardtongue.

Common problems with Prairie Beardtongue

Generally pest and disease free.

    How to harvest Prairie Beardtongue

    Generally not harvested.

    How to propagate Prairie Beardtongue

    Seed

    Sow seeds as soon as they are ripe into modules or small pots. Over winter in a sheltered location, such as a cold frame. Seeds should germinate in spring. Alternatively, stratify the seeds by folding them into a damp piece of kitchen towel inside a seal-able plastic bag. Place in the refrigerator for 3 months, checking regularly to ensure the towel stays moist and remove any seeds which begin to germinate. These can be planted up and grown on partial sunlight and slowly warming conditions.

    Special features of Prairie Beardtongue

    Attractive flowers

    Attracts useful insects

    Drought resistant