だい霜降 そうこう枝尺 えだしゃくだったら
dai sōkō edasha kudattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 大霜降枝尺

1. If/when a great frost falls and branches grow a foot long.; If the great frost had fallen and branches had grown a foot long.

Tara Conditional