Softscape refers to the elements of a landscape that comprise live, horticultural elements.
Softscaping can include:

plants
shrubs
trees
flower beds
Mulch
Soil
Turf
The purpose of softscape is to lend character to the landscaping, create an aura, ambience, and reflect the sensibilities of our clients.

The term softscape stands in contrast to hardscape which represents inanimate objects of a landscape such as pavers, stones, rocks, etc.