Interesting that one flower has 5 petals and another only 4.
No interactions present.
The corolla of four or five lobes is normal, I must admit I've never known it as Summer Jasmine, its always been Jasmine or Common Jasmine to me. I find it often self seeds in the garden but usually in pots of other plant, rarely in open ground.
Lat/Lng: 54.709666, -1.686115
OS grid ref: NZ203350