Welcome New Volunteers!
Cultivate rare varieties of date palms at ASU Polytechnic Campus on Upton Ave at Clearview St. Pollinate date palm trees in the spring, bag the crop in the summer and harvest delicious dates in the fall.ASU has the largest date palm collection of any public garden in the country.
Learn how to cultivate date palms with the help of experienced volunteer mentors. At the end of the season we will combine the total harvest and taste test many rare varieties of delicious fresh dates. Volunteers get to keep a portion of the many varieties of dates harvested and a portion goes to Friends of the Arboretum @ ASU Foundation.
The Polytechnic Date Palm Grove needs a group of dedicated volunteers to check on them, repair the wells, work compost into the soil & keep weeds from taking over the grove.
This collection of date palms was once kept at the ASU Horticultural Resource Center on Rio Salado and Price Rd, not far from the Tempe campus. They are an important germplasm of date palm propagation material in the United States. Each palm had an accession number and its collection information entered into a database. Unfortunately, the database was lost during the move to Polytechnic and each date palm's metal identification sign was damage and or vandalized at the new location. In an effort to restore the germplasm, we will be conducting genetic testing to determine the date palm pedigree.
Go to the Downloads page to download an application to become an Arboretum volunteer and Adopt a Date Palm.
POLLINATING the dates: Late February-April
THINNING the dates: May
BAGGING the dates: June/July
HARVESTING the dates: Sept/October
Cultivar list for Polytechnic Germplasm
The Arboretum's 138 date palms were relocated to Polytechnic campus in 2003
Black Abada X Medjool
Thoory X (Dayri X Deglet Noor)F1
Khalasa X Khalasa BC2
Thoory X Deglet Noor BC4
Medjool X (Dayri X Deglet Noor)F1
Medjool X (Dayri X Deglet Noor)BC3
Thoory X Halawy BC3
Dayri X Deglet Noor BC3
Horra X Dayri
Amir Haj BC2