Allan M. Armitage, "Armitage's Manual of Annuals, Biennials and Half-Hardy Perennials" English | 2001 | ISBN: 0881925055, 1604694289 | 604 pages | True PDF | 9 MB
THE PERENNIAL PLANTING MANUAL: ORIGINATE INCREDIBLE COMBINATIONS WITH YOUR FAVOURITE PERENNIALS by ARNOLD KUNTZ PH.D English | July 28, 2020 | ISBN: N/A | ASIN: B08DSH79CV | 54 pages | MOBI | 0.18 Mb
Growing Perennials in Cold Climates: Revised and Updated Edition by Mike Heger, Debbie Lonnee, John Whitman 2011 | ISBN: 0816675880 | English | 448 pages | PDF | 7 MB
Perennials for the Pacific Northwest: 500 Best Plants for Flower Gardens by Marty Wingate English | 2014 | ISBN: 1570618933 | 304 pages | EPUB | 51,6 MB