Penstemon Gardening

American Penstemon Society

Collects and shares details on species identification, propagation, successful growing methods, and native locations. Includes images and library.

How to Grow and Care for Penstemon Flowers

Gives details of the penstomon plant, with growing and propagation information.

Missouri Botanical Garden: Penstemon digitalis

Offers common name, zone, native range, size, bloom time, sun and water requirements, culture, noteworthy characteristics, and problems.

National Gardening Association: Penstemon

Discusses common name, preferred conditions, appearance, special features, site selection, planting instructions, and care.

Penstemon gloxinoides (Garden Penstemon)

Features overview, characteristics, requirements, fertilizing, light, watering, planting, problems, and how to cut flowers.

Penstemon Website

Looks at three of the penstemon varieties - P. cardwellii, P. deustus, and P. venustus. By Andrea D. Wolfe.

Penstemon: An Introduction to Species and Cultivars

Penstemon is a native American genus of wildly varied, flowering perennials. Gives an overview of the plant along with photos.

The Penstemons

Explores the penstemon seed germination methodology. Details on the prescribed germination environment for each variety.

Penstemons for California Gardens

Reviews native California species, with preferred conditions, appearance, and images.

Plant Encyclopedia: Penstemon

Information from Better Homes & Gardens includes requirements, appearance, uses, special features, top varieties, compatible plants, and propagation.

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