an onion family member, did you smell or taste it? chives most likely

How about Allium cernuum 'Nodding Onion'?

Here is a link that might be useful: Allium cernuum

One I know that looks like this is A. carinatum subsp. pulchellum.

Could be "fall chives". (A. thunbergii 'ozawa'). They do have nodding heads which are looser than the spring chive but are a deeper color than the Nodding Onion which is soft lavender-pink. They bloom in fall instead of spring like common chives.

Here is a link that might be useful: {{gwi:365961}}

Thanks bboy, confirmed they were Allium carinatum pulchellum, Keeled Garlic.