Does trees/plants/shrubs in backyard add/reduce value of home

[Vivek Mattur]

Does have trees, plants, , shrubs in the backyard reduce value to the property due to higher maintenance and less usable space compared to same size backyard with just a lawn in it? Also, does have an additional side Patio with small garden and tree house apart from Backyard to the house increase the value significantly. Thanks, Appreciate your views