Lois Berg Stack and The University of Maine Cooperative Extension Service for helpful insights and the reproduction of this figure.niversity of Maine Cooperative Extension Service for helpful insights and the reproduction of this figure. The USDA is currently revising hardiness zone maps, and it is likely that some areas in Maine will be in warmer zones once new maps are released. These systems may produce no fertilizer runoff and would reduce one environmental impact of longer agricultural growing seasons.įigure 1- Current plant hardiness zones in Maine range from 3a east of Fort Kent to 6a on the southeast coast. Efficient irrigation systems which use moisture sensors to automate irrigation are being researched at the University of Maine in collaboration with researchers from the University of Georgia. For example, commercial growers would fertilize and water plants more frequently which may increase the amount of fertilizer in ground water. It is a slow-growing deciduous tree with strikingly orange, peeling, papery bark not unlike. Light Paperbark maples thrive in both full sun and partial shade, so you can place them in a variety of locations where they can get between two and six hours of light daily. It would be important to balance economic benefits of longer growing seasons with potential environmental impacts of increased agricultural production. Paperbark maple is perhaps one of our most beautiful maples. Thus, commercial growers could sell ornamentals earlier, and greenhouse growers would need less fuel for heat. Climate change predictions indicate an increase in the length of growing seasons. Some species, such as lilac, which flower in response accumulated temperature, would flower earlier than in previous years. red maple hardy to zones 3b to 9) may be more adaptable to temperature changes throughout the United States than less plastic species (i.e. It is also possible that species with more plastic responses to temperature extremes (i.e. Bailey nursery says paperbark maple is hardy to Zone 5 on their web site. I agree with bboy about going to an independant garden center for good info. A beautiful small tree with great individuality and brilliant red fall foliage. The interesting bark provides plenty of winter interest. Can be a little tricky to grow from seed, but very rewarding. However, some plants which require lengthy vernalization periods, such as tulips, may not perform as well as in the past. Here is a link that might be useful: USNA - USDA Plant Hardiness Zone Map: North-Midwest US. The paperbark maple is an excellent specimen tree for small landscapes, especially when planted near a deck or patio where it can be appreciated. This would impact the diversity of plant species grown in nurseries and landscapes throughout Maine and provide a market opportunity for professionals to introduce new, less cold hardy plants. Climate changes could alter current USDA hardiness zones (Figure 1) which provide a guide for horticulturists to select plants that survive in cold climates. Ornamental horticulture uses basic concepts from a variety of disciplines including plant physiology, molecular biology, soil science, entomology, and pathology to answer questions concerning horticulture professionals. Burnett, Department of Plant, Soil, and Environmental Sciences
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