At what age did you start using a Bumbo?

mine held his head up really well, but I started putting him in the for a few minutes at a go around 3 months I sat there with him and when he seem like he was getting tierd of it I'd take him out... now hes almost 5 months and sits in there great

3months when he could simi sit up by himself I helped him & used a blanket

2 months

When my daughter could hold her head up