What does a grape hyacinth look like when it first comes up?
I planted a patch of Grape Hyacinth (Muscari armeniacum) 2 years ago and they come back each spring. I also get a lot of plants in the same area that look like Liriope, which is related to the Grape Hyacinth. I've been pulling them up -- should I leave them alone? Are they the Grape Hyacinth seedlings?
The Grape Hyacinth are likely spreading and the smaller bulb likely are starting out as slightly more slender and lighter green leaves than the older established bulbs.
I would certainly leave the the new bulbs to grow and flower.