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One of a series of plant portrait pages documenting penstemons in this Pacific Northwest garden. Varieties featured are 'Bashful', 'Prairie Dusk', 'Midnight Blue', 'Ruby', 'Apple Blossom', 'Sour Grapes', and 'Garnet'.

Plant portrait of foxglove beardtongue with cultural information, photos, and noteworthy characteristics.

Two pages in Tom Clothier's plant germination database dedicated exclusively to penstemon species, which are often finnicky and require a wide variety of germination conditions.

Two pages with pictures, brief descriptions, and cultural requirements of penstemons native to California, for dry-area and moist-area species.

Index page with links to all species and varieties of penstemon listed in the PlantFiles database of member-provided plant information and photos.

Offers information about membership, library, publications, events, taxonomy, and illustrated identification characteristics.