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Wednesday, 12 January 2011 15:59

Scotch Broom

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Scotch broom oozes toxic substances into the soil that prevents native plans from establishing.

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Scotch Broom (Cytisus scoparius)

Description
  • Native to British Isles, central and southern Europe
  • Flowers are yellow and pea-like
  • Woody, 5-angled stems that can grow to 3 m tall
  • Flat-hairy seedpods that start as green, but turn to a blackish brown color
  • Grows in dry, sandy soils in full sunlight
Consequences of Invasion
  • Is a serious threat to rare ecosystems
    • Forms dense colonies that crowd out native plants
    • Produces up to 18,000 seeds per plant
    • Seeds can remain viable to at least 30 years
    • Produces toxic substances that prevents other plant life from establishing
  • Serious rangeland invader
    • Limits movement of large animals
    • Can lead to increased wildfire fuel loads
Prescription for Control
  • Remove the broom before it flowers to prevent seed maturation
  • Cut larger plants below ground level
  • Smaller plants (stem girth under 1.5 cm) can be hand pulled
  • Repeat treatment over a 3-5 year period
  • Replant the treated area with competitive shrubbery
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Read 733 times Last modified on Friday, 10 February 2012 11:48

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