UA Banner


Top border

What's In Bloom?

AUTUMN
October - November


Trees that are flowering now are responding to shortened days in combination with warm soil temperatures and adequate moisture. If the air temperatures remain warm, many monsoon-flowering species will continue as well. Most of the ones listed here are native to the southern hemisphere. Pollinators that are active during our fall include butterflies, hummingbirds, and some bees.


Floss silk tree - Chorisia speciosa
Shocking pink flowers, resembling daylilies
Native to Peru and Argentina
South of Engineering; south of Bio West

Floss silk tree - Chorisia insignis
Creamy white to pale yellow flowers, resembling Easter Lilies
Native to Brazil and Argentina
South of Engineering, south of Bio West

Jacaranda - Jacaranda mimosifolia
Lush indigo flowers
Native to South America; these particular ones from high elevations
South Main Library

Coral gum - Eucalyptus torquata
Salmon puffball flowers
Native to Australia
East of Centennial Hall

Palo de picho - Schizolobium parahybum
Bright yellow flowers
Native to southern Mexico
Southwest of Engineering

Golden rain tree - Koelreuteria panniculata
Bright yellow flowers in long chains
Native to China, Taiwan
Southwest of Haury Anthropology in Green Belt


To see a full campus map with all trees identified, please click on “Maps and Walks”. You can search for tree species, identify any one tree, find all species from Mexico, learn what plants grow around a favorite building, or just remember what a beautiful campus we have.

Bottom border
Director - Elizabeth Davison
UA Campus Arboretum
University of Arizona
PO Box 210036
Tucson AZ, 85721
Telephone: 520-621-7074
This site is hosted by the
College of Agriculture and Life Sciences
Questions or Comments?
edavison@Ag.Arizona.Edu
Last Updated: June 28 2008