August Color Appears at the Washington Park Arboretum

August 2nd, 2013 by Pat Chinn-Sloan
Selected cuttings from the Washington Park Arboretum (7/29/13 - 8/12/13)

Selected cuttings from the Washington Park Arboretum (7/29/13 – 8/12/13)

“Can You Smell That Smell?”

1)   Clerodendrum trichotomum 
(Peanut-Butter Tree)

  • Repugnant, peanut-butter odor when leaves are bruised!
  • Cats are attracted to the smell.
  • See our suckering forest of young trees along the path leading down to the WPA horticultural crew barn.

2)   Prostanthera cuneata      (Alpine Mint-Bush)

  • This low-growing shrub is from Australia and is in the Mint family.
  • When leaves are crushed, they emit a strong fragrance that some liken to eucalyptol and smelly socks.
  • Located in the Australian exhibit of the Pacific Connections Garden.

3)   Ribes malvaceum var. viridifolium   ‘Ortega Beauty’      (Chapparal Current)

  • Native to the coastal mountains of southern California.
  • Malodorous skunky scent when leaves are rubbed like many plants in a chapparal community.
  • Located in the Cascadian entry exhibit of the Pacific Connections Garden.

4)   Umbellularia californica      (Headache Tree)

  • Large broadleaf evergreen tree.
  • Most odoriferous tree in our plant collections by far.
  • Take a deep whiff of the crushed leaves and you’ll know right away why it’s called the headache tree!

5)   Vitex agnus-castus      (Monk’s Pepper)

  • Peppery-smelling leaves some folks compare to Cannabis.
  • An ornamental summer-flowering shrub with many medicinal qualities.
  • Located along Azalea Way at the SE entrance to the Woodland Garden.
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