Practical Gardening Institute

year of pub­li­ca­ti­onISBNauthor(s)title
2005978-0-9774969-0-7Janet Macunovich8 Months of Color for USDA hardiness zones 4, 5, 6 & 7
  ''978-0-9774969-1-4Janet Macunovich8 Months of Color, for USDA Hardiness Zones 4, 5, 6 & 7