Showy Penstemon (Penstemon spectabilis)

Showy Penstemon

Also known as: Notable Pentsemon, Spectacular Penstemon, Royal Pentsemon

Showy Penstemon (Penstemon spectabilis) is the most breathtaking of all the penstemons. It’s native to southern California and is also called showy beardtongue. Showy Penstemon is a low maintenance plant with minimal water requirements. That means you’ll probably only have to water it once a month or so.

Scientific classification

Species

Showy Penstemon (Penstemon spectabilis)

Mints plantains olives and allies

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Perennial

Lifespan

Herb

Plant Type

Spring, Summer

Bloom Time

30 cm to 91 cm

Plant Height

Purple

Flower Color

Evergreen

Leaf type

15 - 35 ℃

Ideal Temperature

Images of Showy Penstemon

Distribution of Showy Penstemon

Distribution Map

Showy Penstemon is native to select regions of North America where it typically flourishes in a Mediterranean climate. Beyond its native range, showy Penstemon has been successfully cultivated, adapting to similar climates in horticultural settings. Its presence is primarily restricted to environments that resemble its native habitat, owing to its specific ecological preferences.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Dry washes, disturbed areas

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Showy Penstemon

Every week

Water

Full sun

Sunlight

15 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Showy Penstemon, native to arid regions, demonstrates remarkable drought tolerance and efficient water storage. It requires weekly watering and is well-suited to xeric landscapes, effectively conserving water within its foliage during hot growing seasons.

Fertilize: Fertilize showy Penstemon with a balanced slow-release fertilizer (10-10-10) in early spring and again mid-season. Use sparingly to prevent overfertilization. Avoid fertilizing during winter dormancy. Proper timing enhances showy Penstemon's health and flowering quality.

Pruning: Showy Penstemon thrives with pruning, ideally during early to late spring, to encourage growth and inhibit legginess. Remove dead stems and spent flower spikes to enhance blooming. Clean cuts promote healthy regrowth and improve air circulation, thereby minimizing disease risk.

Propagation: Showy Penstemon features striking tubular flowers and foliage. Propagate by dividing the root ball, ensuring sections have sufficient roots and shoots. Replant immediately in well-draining soil for effective establishment. With care, this method promotes vigorous growth and healthy specimens.

Repotting: Showy Penstemon requires excellent drainage in pots to thrive, ensuring optimal health and growth by preventing root rot and promoting proper aeration.

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