Garden penstemons are long-lasting shrubby perennials that bloom beginning in June, and again later in the summer. Colors include shades of pink, cherry and purple -- the smoky, dark tones of ...
W hat is a penstemon? Penstemons are great bedding plants for use as annuals, half-hardy or perennials. There are many types available. There are two main groups: American and European penstemon. In ...
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