Bush Penstemon
Keckiella antirrhinoides
A woody shrub featuring upright stems, narrow lance-shaped green leaves with distinct venation, and reddish tinges on newer stem growth.
- Light
- Full sun, requiring at least 6 hours of direct sunlight per day.
- Water
- Low water requirements once established. Water thoroughly and allow the substrate to dry completely before the next watering to prevent root rot.
- Growth
- Perennial woody subshrub, typically growing 2 to 5 feet in height with an upright, branching habit and moderate growth rate.
Care instructions
Provide full sun to light partial shade with well-draining soil. Water deeply but infrequently once established, allowing the soil to dry out completely between watering sessions. Avoid excessive moisture around the root crown.
Growing details
Sunlight
Full sun, requiring at least 6 hours of direct sunlight per day.
Watering
Low water requirements once established. Water thoroughly and allow the substrate to dry completely before the next watering to prevent root rot.
Soil
Requires very well-draining soils, such as sandy or rocky loam, with a neutral to slightly acidic pH range of 6.0 to 7.5.
Hardiness zone
USDA hardiness zones 8 through 10, tolerating mild frosts but sensitive to prolonged freezing conditions.
Growth habit
Perennial woody subshrub, typically growing 2 to 5 feet in height with an upright, branching habit and moderate growth rate.
Bloom season
Spring to early summer, producing tubular flowers that range from yellow to orange-red.
Propagation
Propagated primarily through semi-hardwood stem cuttings taken in late spring or summer, or by starting from seeds.
Common pests & issues
Prone to root rot if planted in poorly draining soil or overwatered. Minimal pest issues if kept in optimal dry conditions.
Similar species
Other members of the genus Keckiella, distinguished primarily by flower coloration, shape, and specific leaf arrangement patterns.