Last year, I lost a lot of my early garden planted seedlings due to a late March cold spell. Decimated my radish and peas.
Looks like we will have another late March cold snap this year as well.
I have doubled up on my fleece and other insulation on my young planted seedlings (even those in low tunnels are getting a layer of overnight fleece blanket to keep them warm).
I shall see in a week if these efforts worked or not.