The Black Locust Tree and Why You Want Many

The Black Locust Tree and Why You Want Them.
The Black Locust Tree and Why You Want Many

Black Locust can grow up to 170 ft tall

Grows 3-4 ft. per year

Native to North America

Cold hardy in zones 3 to 8

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Firewood

  • BLT wood, on a pound for pound basis is roughly half that of Anthracite Coal
  • Since its growth is fast, firewood can be plentiful

Timber

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  • Rot resistant due to a naturally produced robinin in the wood
    • 100 year life span in full soil contact! (better than cedar performance)
    • Fence posts
    • Outdoor furniture
    • Outdoor decking
  • Sustainable due to its fast growth and spread
    • Can be coppiced (cut to the ground)
    • Can be pollarded (cut above ground)
  • Its dense wood makes durable tool handles, boxes (tool), and furniture
    • The wood is tougher than hickory, which is tougher than hard maple, which is tougher than oak.
    •  A very low rate of expansion and contraction
    • Hardwood flooring
    • The highest tensile beam strength of any American tree
  • The wood is beautiful

Legume

  • Nitrogen fixer
    • Fixes the same amount of nitrogen per acre as is needed for 200-bushel/acre corn
    • Black walnuts inter-planted with locust as “nurse” trees were shown to rapidly increase their growth [[Clark, Paul M., and Robert D. Williams. (1978) Black walnut growth increased when interplanted with nitrogen-fixing shrubs and trees. Proceedings of the Indiana Academy of Science, vol. 88, pp. 88-91.]]

Bees

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  • The edible flower clusters are also a top food source for honey bees

Shade Provider

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  • Its light, airy overstory provides dappled shade
    • Planted on the west side of a garden it provides relief during the hottest part of the day
    • (nitrogen provider)
    • Planted on the west side of a house, its quick growth soon shades that side from the sun

Wind-break

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  • Fast growth plus it’s feathery foliage reduces wind for animals, crops, and shelters

Fodder

  • Over 20% crude protein
  • 4.1 kcal/g of energy
  • Baertsche, S.R, M.T. Yokoyama, and J.W. Hanover (1986) Short rotation, hardwood tree biomass as potential ruminant feed-chemical composition, nylon bag ruminal degradation and ensilement of selected species. J. Animal Sci. 63 2028-2043

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