CLear pink plastic covering for seeds

You don't say if you've sown in situ or in trays, or where.
I sowed lettuce, spinach and peas straight out in the beds a few weeks ago and they survived that nasty cold weather and are just popping up in the recent sun.
No plastic needed, methinks?

Its usually a good idea to put something like that over the bed a couple of weeks before to warm up the soil.

But the seeds you've sown are usually ok in this weather.

I wont do any harm, but be careful that the plastic doesnt damage emerging seedlings.

Especially the lettuce