By Paul Aden
Paul Aden, who has brought dozens of latest hostas into cultivation, wrote six chapters and contributed many images to this vintage. different members contain John Elsley, Yoshimichi Hirose, Graham Stuart Thomas, and Andr? Viette. This used to be the 1st modern booklet on hostas and performed a job in supporting to convey those flexible shade-lovers to their present point of recognition.
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Extra info for The Hosta Book
Stern (1931), and Nils Hylander (1954), and their efforts have improved our knowledge of the group. The Japanese botanist, Fumio Maekawa spent a lifetime attempting to classify the species of Hosta, publishing his work in 1940 with minor revisions over the next 40 years. Maekawa's species appear to be narrowly defined and inflated in number. Recently, his work has largely been superceded in the botanical world by that of Noboru Fujita, a Japanese ecologist, who published his classification of Hosta in 1976.
Another species, H. clausa, is called a triploid because it has 90 chromosomes. Breeding System Since the 19th century, it has been recognized that hybrids may be made between the majority of the species and cultivars of Hosta either by random insect pollinations or through controlled pollinations by breeders. It has also been observed that many hostas set seed regularly even when grown in isolation. Thus hostas appear to be normally self-fertile, so breeders must remove the anthers of the female parent when making crosses.
15 cm), at a site that does not bake in the summer sun, suits hostas just fine. Being foliage plants which have large areas through which they transpire (evaporate) water, water-holding ability is the key to soils suitable for hostas. Adding organic materials, such as some packaged, soil-mixes (often including peat moss), compost, leafmold, or well-rotted manure, not only increases water-holding capacity, while retaining air spaces, but also supplies nutrients, the materialsnitrogen, phosphorous and potassiumwhich are important plant building blocks.