Heritage Perennials - Profile with description and horticultural details. (additional pages for other varieties) (zone 4-9) (1 photo)
NARGS Image Gallery - Photograph(s) contributed by North American Rock Garden Society members. (1 photo)
Rob's Plants: Verbascum phoeniceum 'Violetta' - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (zone 4-8) (2 photos)