"We have just received close to 900 trees!" said Dana Dentice, PHS urban forestry program manager. "About half of these trees will be planted in the city of Philadelphia."
She said most of the trees are planted as street trees in the sidewalk.
"The other half will go out to the surrounding counties," she said.
Dentice says all the trees are planted by volunteers.
"We're going through each group's order to make sure they have the correct number of trees they're supposed to get and the types of trees," she said.
Dentice says there are lots ways that trees improve quality of life.
"You know, the average person generally knows that trees can provide us oxygen. Some lesser maybe known ones is that trees can actually improve health and wellbeing, so even mental health," she said.
"Trees are critical for life on this planet, especially in urban areas," Maslin said.
And Maslin says the existence of trees builds communities, because she says people tend to congregate around them.
"So they meet their neighbors, develop these social connections and watch out for each other more," she said.
Tree Tenders project manager Barley Van Clief says being around trees has been proven to lower cortisol levels, too.