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Family: asteraceae
Common name(s): giant coneflower
Hardiness ratings: USDA zone 4~6 - 8~9 
General resources
Links for Rudbeckia maxima
- Central Texas Gardener - Plant of the week profile with photo and cultural information.
 (1 photo)
- Dave's Garden PlantFiles - Profile page with horticultural basics, and member-contributed photos and comments. (zone 6-8) (26 photos)
- Denver Botanic Gardens - Description, native range, and cultural requirements. (zone 4) (4 photos)
- Garden.org - Community-assembled plant profile (12 photos)
- Heritage Perennials - Profile with description and horticultural details. (zone 4-9) (1 photo)
- Lady Bird Johnson Wildflower Center - Plant description and characteristics with notes on distribution, culture, and propagation. (54 photos)
- Missouri Botanical Garden - Plantfinder page for one of the plants growing at the garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 4-9) (14 photos). Also a page for 'Golda Emanis'.
- North Carolina State University factsheet - Plant profile with horticultural details and comments (zone 4-9a) (10 photos)
- Ontario Rock Garden Society - Germination information
- Plant Delights Nursery - Catalog page with photo, horticultural basics, and descriptive blurb. (1 photo). Also a page for 'Golda Emanis'.
- Rob's Plants - Plant profile with basic horticultural information and often personal observations. Also seed germination records. (4 photos)
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