Maintained by Cold Stream Farm, LLC with the intent of supplying a variety of informal information and photos on the trees and shrubs grown and sold by the nursery, along with various other topics such planting suggestions and wildlife habitat. Navigate by clicking the topics on the right, labeled 'Archive by Topic', or 'Archive by Month'. Cold Stream Farm supplies trees and shrubs which are grown as bare root seedlings and transplants and sold both wholesale and retail with no minimum order.

Thursday, November 15, 2007

Hybrid Poplar, the instant tree: Populus species

Hybrid poplars usually live 35 years or more and grow to 45-90 feet in height. Once established, on suitable sites and given adequate light, nutrients and moisture, the hybrids can grow 4-6 feet a year early in their life span. Diameter increase on a good site will be 1-2 inches per year. First year performance of hybrids and other trees is very dependent on moisture and sunlight availability. They will tolerate a wide variety of nutrients and soil pH as low as 3.0, but of course may not do as well. They can produce 2-3 cords/acre/year, so four acres should heat most homes. (Cord=4~x4~x8’ pile). On some sites the hybrids simply will not perform well even with the best care.
As an energy source the hybrid poplar was found to be North America’s most productive tree at nearly 60 million BTU’s per acre per year, vs. only 38 million for oak. Hybrids produce about 8,600 BTU’s/lb., slightly more than most of the common firewood.
As with native poplars, wild animals will use hybrids as a cover and feed source.

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