They are certainly Mulberry but they look more like suckers than seedlings to me. Is there a stump in there somewhere? Or Mulberry nearby?

i asked on some other posts.. if mulberry suckered.. mine dont ... but i cant find where i posted it.. lol ..

with the curb right there.. and a bazillion seedling ... i would bet that is where diaretic birds stop ... i get them along fence lines.. under eaves .. anywhere a bird stops to take care of business .. which is why i have big purple stains all over my car and siding [aparently sometimes you dont even need to stop.. well birds.. lol] ... gawd i hate mulberry this time of year ...lol ...

cant wait until they start going after the rotting fermenting fruit on the ground.. and start flying into windows ... you really should not drink and fly ....

ken

No nearby stumps, but a fair number of Mulberry trees in the local area. So yea, they must be bird-seeded seedlings that have just grown out low due to mowing...

Ken - have you tried eating the mulberries yourself, too? At least you could kill 2 birds with 1 stone that way!