Q.How Do I Take Care Of A Dollar Tree Gifted To Me?
Shedding leaves, stalk is still dark green.

Certified GKH Gardening Expert
Sure! Since it doesn't specify which Genus of dollar tree that you have (Scientific names will stop all confusion) I will include some articles for some of the most common specimens with that name:
https://www.gardeningknowhow.com/ornamental/trees/eucalyptus/tips-growing-eucalyptus.htm
https://www.gardeningknowhow.com/specialty/how-grow-money-tree.htm
https://www.gardeningknowhow.com/ornamental/flowers/money-plant/growing-money-plants.htm