In 1892 Sessions struck a deal with the City of San Diego to lease 30 acres (120,000 m2) of land in Balboa Park (then called City Park) as her growing fields.[1] In return, she agreed to plant 100 trees a year in the mostly barren park, as well as 300 trees a year in other parts of San Diego.[2][3] This arrangement left the park with an array of cypress, pine, oak, pepper trees and eucalyptus grown in her gardens from seeds imported from around the world; virtually all of the older trees still seen in the park were planted by her.