Not much is known about the 17th-century Estonian and Livonian landscape architecture. Most of the information is based on the descriptions found in historical archival and literary sources and on some of the well-known engravings. According to these, a common idea of that era's landscape architecture is that it was humble in scale and design, and was similar to the practice of late-medieval times when there was no space or ambition to grow woody plants in small gardens of castles. But when diving into the Swedish manor plans dating back to the last decades of the 17th century, it can be noted that the layouts of manorial hearts are inherent to the spatial design of early baroque, which is characterized by a landscape that has strongly been redesigned and includes a decorative garden, kitchen garden and a park. This article focuses on the spatial composition of Estonian and Livonian manor parks of the second half of the 17th century and observes the role of trees and their use in these landscapes. This article is based on the results of a study about the planning of baroque manor hearts