Penstemon is well known for a tough-as-nails, grow-anywhere attitude. The white flowers are large compared to other Penstemon species' blooms, and the plant re-blooms nicely with deadheading, though the seed heads make great visual interest in fall and winter with their chandelier-like configuration. 'Husker's Red Improved' is a refinement of Dr. Dale Lindgren's 'Husker's Red' cultivar, released in 1983 out of Nebraska (the name likely references the Cornhuskers football team at the Universtiy of Nebraska, where Lindgren was a professor of mathematics). This cultivar has been highly praised and widely used ever since. Plant in full sun for the best leaf color; this plant will tolerate dry and clay soils, and may seed out somewhat aggressively, so site accordingly!
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