As well as being the scientific name, penstemon is also widely used as a common name for all Penstemon species alongside beardtongues. Penstemon (P. laevigatus) is amazing. There are about 300 varieties of penstemon, the largest genus of flowering plants native to North America. Most penstemons are 1 to 3 feet tall, but Palmer’s penstemon can grow up to 6 feet, giving you options for the middle and back of the border. There are hundreds of penstemons to admire. Penstemons are perennials known for their tubular flowers, attracting pollinators like bees and hummingbirds. Penstemon Alice Hindley. PassionatePenstemon Collection. What's included? Jump To SectionWhat Are Penstemons?How to Grow and Care forPenstemons Penstemon, also called beardtongues, are beautiful flowers perennials that make gardens beautiful. Caring for this plant, from planting to blooming is easy. Penstemon plants generally grow best in infertile, well-draining sandy or gravelly soil. They don’t tolerate clay soil or rich soil. How and When to Plant Penstemon. Learning how to dividing penstemon has been made easy with our easy-to-follow instructions. Keep your plants healthy with this essential gardening technique. Penstemon plants are bursting with dangling tubular bells that hummingbirds visit often, even for a last sip of the day as dusk falls. Browse Penstemon plants for sale from New Zealand’s premium plant supplier, The Plant Company. We’re here to help you bring your dream garden to life – shop now. Penstemon Husker's Red with the dead headed flower stems still on. If you grow Penstemons in pots or large containers or if you are shopping forPenstemons... The only Penstemon that can tolerate garden water is maybe Margarita BOP or Penstemon heterodoxus. The rest will just rot off. So, only water them a little to get them established. The Passion of Penstemaniacs: Penstemaniacs, the name affectionately given to members of the American Penstemon Society, meet this June in Vernal, Utah.