HA! , I usually start beets in fall, or early winter - here in southwest CA coast. But it works in early spring planting too.
I'd say pick a good variety for your region/temps, etc. As beets can be an early spring/summer crops in most areas. Easy !!
I tend to like chiogga as it seems to do well in containers.
Cukes need warm weather, so I start seeds indoors about a month prior, and ready to plant out next week in soil "soil temp : 60-65F is my target". But last weeks heat surge surpassed that
. Now its chilly