Mac - Philadelphus certainly but what leads you to that particular species?

common name.. mock orange

where are you ... that they are blooming now?? .. might help with the ID

ken

Flora- I made an overzealous statistical guess: lewisii is most often sold in the PNW as it's native. You're right though; it could be any species.

I see. I thought maybe there was some distinguishing feature there. I don't know much about them in any detail.

I'm in Seattle, and this picture was taken in late May (sorry I omitted that important detail).

Outlets here stock named garden forms and not just the native species. You can see an entire collection of mock oranges at the Washington Park Arboretum in Seattle.

Ken is correct with common name mock orange (a.k.a.: Minnesota mock orange); it only blooms from previous year growth, old growth wood, some years here in Seattle --- we don't get enough cold/freeze that they won't bloom as abundant, not from poor pruning. Gets rather large; give lots of room, highly fragrant, it just ripped out one that we inherit 23 years ago when we purchased this house. Aggressive/vigorous grower; suggest you look up other varieties, unless you have the space. I put in three of Philadelphus "Belle Etoile" mockorange instead; more compact, but has a slight pink center striation -- more fragrant too. Nicer fall foliage coloration to the garden as well.

Also reside in Seattle.

Cheers,

Forgot to mention; that blossom also are double, instead of the single blossom.

You are apparently referring to 'Minnesota Snowflake'.

Unless you are referring the pic sent by Robert; I was referring "Belle Etoile" as being double blooming with pink center striation, I think I have seen the pic one that Robert sent on thread being to referred to Minnesota "Snowflake" mock orange by some -- referencing single blossom, so yes.

Cheers,