Here is the English translation of the world's greatest encyclopedia of perennial plants. Included are 809 genera; 4286 species, subspecies, varieties, and hybrids; and 3617 cultivars. It is a peerless resource for perennial one-upmanship because of its inclusiveness, and this translation offers material on new introductions.
I have a modest horticultural library, including the AHS A-Z mentioned in another review, and I was thrilled to be able to add "Hardy Herbaceous Perennials" to my bookshelf. The authors are well known experts in the field of herbaceous perennials and they've compiled a truly remarkable book on the subject. Whereas "A-Z" has as many pages as this work, it includes every type of plant - woodies, vines, conifers, annuals, perennials, water plants - you name it. Obviously you're getting a lot more entries on the narrowed down topic of herbaceous perennials in Jelitto & Schachts' book. You'll find more obscure perennials included in this work than in A-Z.The entries are also more interesting than A-Z's. Each entry is from the author's first hand knowledge of the plant, more along the line of what you might find in Dirr's and Armitage's writings. However, they do also stick to the facts as in A-Z, so you do get the information you need, as in in origin, zone, plant requirements. A-Z is more clinical.Since the book was written many years ago (this edition was updated in 1990 when it was translated from the German), some of the photos are black and white, though many are color. And, since the translation was done in 1990, taxonomic changes that occurred after that date are missing. Neither of these points is a drawback to buying this book. All the photography is excellent and, well, names change all the time, so even A-Z needs updating.One last point to be made is that we in the United States tend to feel perhaps a little too self important. This is why A-Z is considered the 'best' by many US readers. While I wouldn't give up my copy of A-Z, I don't restrict my library to US publications. There is a huge amount of information originating in Europe and on other continents that never makes its way here. This does not reduce its value, just makes it less available unless we reach beyond the US. I have a friend who bought a shrub here in a US nursery and could find no info on it. It wasn't in A-Z or Dirr. The first 3 books I pulled off my shelf had it; two from the UK and one from Australia.In conclusion, "Hardy Herbaceous Perennials" is one of the best additions I've made to my library in a long time. The price is a bit steep, but worth it.
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