Collards go in the ground once the soil itself has warmed, not simply once the frost calendar clears.

Collards grow well across most of settled Quebec, but the short frost-free window and hard winters mean timing and crop choice matter more here than in…

Collards in Prince Edward Island go into the ground once the soil itself warms, not on a single calendar date.

Collards go into Pennsylvania ground once the soil has caught up with the calendar, which in the Philadelphia region means late March into early April…

Collards go into Oregon soil once the last frost risk has passed and the ground itself has warmed, not the moment the calendar says spring arrived.

Sow or transplant collards outdoors once Ontario’s soil has warmed past the mid-40s Fahrenheit, typically a week or two after the region’s average last…

Collards go into Oklahoma soil twice a year with real success: a spring planting timed to the last frost, and a fall planting that often outperforms it…

In most of Ohio, collards go into the ground once the soil has shaken off its early-spring chill, typically after the last frost window closes in mid-May.