Conditions for growth Apios americana’s natural distribution range proves its adaptability to a wide spectrum of climatic conditions, from the temperate, four-season climate of North American states to the warmer gentler weather of Florida. Also, its prior cultivation in England and Ireland indicates that it could be re-introduced in Europe without major difficulties. Apios Americana is a tuber-producing vine. During winter-time, the vine freeze but the tubers will be well-preserved in the ground. In cultivation, it is ideal to implement a support system (trellises) in order to promote better plant development and facilitate seed production. The propagation can be done either by seeds or by planting the tubers, during springtime. If seed propagation is chosen, it is recommendable to soak the seeds for approximately 3 days prior to planting and keep the plants in a greenhouse during the first year in order to allow them sufficient fortification before transplanting them into the ground. In recent years, in-vitro protocols have been established which allow for the selection of desirable traits in Apios (e.g. larger tuber, disease-resistance, etc). Apios americana grows well on acidic soil, with Ph requirements ranging between 5 and 8. Good drainage increases the crop quality. Harvesting of the seeds must be done once the seed pods start opening. The tubers may be dug out after the first frost. A good tuber yield/plant can reach 3.5 kg or even more in some cases. Although it is generally considered a resistant plant, it is susceptible to different Rhizobium species and various nematodes. Fumigation with methyl bromide was used in cultivation trials as a prevention method. Selected sources of planting material Rareplants RarePlants, P.O. Box 468, Wrexham, LL13 9XR United Kingdom Tel. +44 197 836 63 99 http://rareplants.co.uk Sand Mountain Herbs 321 County Road 18 Fyffe, AL 35971 United States Tel. +1 256 659 27 26 E-mail: Info@SandMountainHerbs.com http://www.sandmountainherbs.com 27 Pagina 36
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