San Bernardino Penstemon (Penstemon Caesius) is a perennial herb in the Plantaginaceae family with easy care difficulty. It requires low watering and full sun light in USDA hardiness zones 8-10. This plant is toxic to cats and dogs — keep it out of reach of pets.
Penstemon caesius is a perennial herb or shrub endemic to California, known for its low-growing habit and tubular flowers.
San Bernardino Penstemon
Penstemon Caesius
Penstemon caesius is a perennial herb or shrub endemic to California, known for its low-growing habit and tubular flowers.
Quick Facts
Safety
Growing Conditions
Care Calendar
Monthly care tasks for San Bernardino Penstemon
Expert Care Tips
Pro tips from botanists and plant experts
Watering Tip
Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.
Humidity Trick
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Growth Hack
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