- Armitage's Garden Perennials: A Color Encyclopedia
- Armitage's Vines and Climbers: A Gardener's Guide to the Best Vertical Plants
- Herbaceous Perennial Plants: A Treatise on Their Identification, Culture, and Garden Attributes
- Armitage's Manual of Annuals, Biennials and Half-Hardy Perennials
- Allan Armitage on Perennials (Burpee Expert Gardener)
- Andrea Loom
- Dean Winstanley
- Bruce Caughey
- Rick Schafer
- Lorna Knight
- Elizabeth Yarnell
- Everett F. Harrison
- C. Serra Zanetti
- John M. Camp
- David Sansone
- M. Lombardi
- Grant W. Reid
- Ray Giunta
- Robert Nold
- Andrea Küssliner
- Ronald Houtman
- Andrea Kosslinger
- Thomas Perkins Abernethy
- Elizabeth Fisher
- Valerie Virga