August Color Appears at the Washington Park Arboretum

“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.