Early plants for bees?

Have you got anything in at the moment that you could let 'go to flower'? I was at our plot at the weekend and the bees were having a great time on some of our PSB that has now gone to flower so we have left some in for them.  I do shake one of those wildflower seed mixes on spare areas.  Obviously that won't help the bees now, I know.  Hopefully though, the runner beans will be going in soon and there will be lots of lovely flowers for them!

Willow gives them an early spring feed

Thanks everyone, that's given me a few ideas.  I think I'm a bit too tidy-best to leave those winter veg to go to flower and seed!

Bees in my garden have been going nuts for the apple, pear, cherry and quince blossoms, but their all-time favourite this time of year seems to be the horse chestnut flowers. The aquilegias are out now though, and they really like those too.

The bees were very busy with snowdrops which are always the first to appear for my area, then crocus. Then the long-blooming lungwort I let seed itself everywhere is keeping them extra busy. Normally I hate having lungwort everywhere, including the lawn, but the bees are hungry and desperate so I leave them. Same with good old dandelions - everything has its use even if we don't like it.