White Sweetclover - Melilotus albus

I'm wondering what everyone thinks about Melilotus albus. It's non-native where I am in New York, but I think it's been here for a long time. I usually pull up non-native plants around my meadow, but this one is always so covered in bees that I've been leaving it alone. The patch has roughly doubled in size in the five years I've been watching it, and only one other little bunch has appeared. Am I making a terrible mistake? Should I nip this in the bud before it gets out of hand? It sure does make a lot of seeds....

I am not familiar with sweet clover  though wikipenia makes it sound like a good plant to have:

is a nitrogen-fixing legume in the family Fabaceae. Melilotus albus is considered a valuable honey plant and source of nectar and is often grown for forage.

https://en.wikipedia.org/wiki/Melilotus_albus

I have both white and yellow sweet clover growing semi-wild in a few corners of my property. I love the stuff (the smell, the mobs of bees) but it can get unruly.

I guess the fact that it's biennial explains why it hasn't taken over around here. It certainly has an impressive root system in the second year -- too much to pull by hand.

I cut some of it pre-flowering for green biomass in my composters.

If I have plants with mature seeds, I chop them up and put them in a "nuisance seeds" rot barrel.