In the 1960-1970s, several types of self-propelled artillery units (SPG) for various purposes were created in the Soviet Union. Most of them, by a strange whim of the military and developers, received color names. The core of this “flower garden” is, of course, the self-propelled guns “Acacia”, “Tulip” and “Hyacinth”. The main thing they have in common is the chassis. When they were created, the tracked chassis of the self-propelled air defense system “Krug” - “object 123” - was used as a base. However, this chassis cannot be considered the original, since it was a modification of the basic chassis of the SU-100P self-propelled gun - “object 105”. This vehicle, which belongs to the first post-war generation of domestic self-propelled artillery units, in turn served as the basis for the creation of several types of combat vehicles, which we will begin with.