Showy Penstemon
Showy Penstemon earns its name with dense spikes of saturated violet-blue flowers that seem to glow above dry soils in late winter to spring. Its tubular blooms rise from a neat clump of glossy, deep green leaves, creating a bold seasonal display that brings color, height, and structure to rock gardens, slopes, dry borders, and coastal sage scrub-inspired plantings.
Native to Southern California and Baja California, Showy Penstemon thrives in full sun, lean soil, and excellent drainage. Hummingbirds return again and again to its nectar-rich flowers, while native bees, especially larger solitary bees, also visit early in the season when floral resources can be limited. Once established, this long-lived perennial is highly drought-tolerant and well suited to water-wise landscapes.
Why Choose Showy Penstemon?
- Brilliant violet-blue flower spikes create a standout spring display
- Tubular blooms are excellent for hummingbirds
- Supports native bees early in the season
- Glossy basal foliage adds structure after flowering
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Great for slopes, rock gardens, dry borders, and native plant gardens
Plant Showy Penstemon in full sun with lean, sharply drained soil, and avoid overwatering once established. Remove spent flower stalks after bloom if desired, but leave the basal foliage intact to maintain structure.
- Water: Very low water needs once established; avoid summer irrigation.
- Soil: Requires excellent drainage; gravelly or sandy soils are ideal.
- Light: Full sun is essential for strong stems and abundant bloom.
- Pruning: Remove spent flower stalks after bloom to tidy appearance.
- Longevity: Performs best in lean soils; avoid fertilizer and rich compost.
- Mulch: Use gravel or mineral mulch to keep the crown dry.
- Wildlife note: Exceptional hummingbird plant and reliable nectar source for native bees.
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