These usually survive most winters, but, if the frost, and accompanying very low temperatures, penetrates the ground to their level, they will likely be killed.
(These; survive; most winters; T:usually) (they; will likely be killed; ) (the frost, and accompanying very low temperatures; penetrates; the ground) Context(the frost , and accompanying very low temperatures penetrates,List([44, 105))):(the frost; accompanying; very low temperatures)
the frost , and accompanying very low temperatures penetrates,List([44, 105))
These they the frost, and accompanying very low temperatures the frost
survive will likely be killed penetrates accompanying
most winters T:usually
the ground
very low temperatures