[1] The community of Gardiki comprises two settlements:[2] The village occupies the site of the ancient town of Pellinaeum or Pelinna.

The ancient town survived until the early Byzantine period, but disappears thereafter only to reappear under the name of Gardiki in the 11th century.

In the late medieval and Ottoman periods, the area was settled by Aromanian (Vlach) Greeks, who remain the main group of the modern village.

The town is attested as an episcopal see of the Greek Church since the 11th century as a suffragan see of the Metropolis of Larissa.

When Thessaly was united with Greece (1881), the Greek Orthodox eparchy had been vacant since 1875 and was suppressed in 1899 through being absorbed into the Metropolis of Phthiotis.