Four plants in new garden

The one with the flowers is scented.

Many thanks in advance.

 

Flowering one looks familiar, possibly a Choisya ternata judging by those leaves.

Choisya ternata plants | Thompson & Morgan

Nick

 

2. So sorry Nick but it is not Choisya ternata...see clear pics below.
The mystery flowers is not a shrub...it is something in Brassicaceae.
Possibly a weed...need clear pics to show detail.
It may die or seed for next year
It only has 4 petals.
The leaves are wrong.
Choisya has one stalk with 3 leaflets..it is evergreen.
Flowers are 6 petals with like a crown in the centre.

 

It shows up better this way. Very weed like..tiny leaves at the bottom..thinking.

.

 

2. Having consulted my wild flower books.
Looks like Arabidopsis thaliana..common name Thale cress.

arabidopsis thaliana - Recherche Google

Quote A. l .Jacobson....

Thale Cress; Arabidopsis Thaliana (L.) Heynh.
Mustard Family; CRUCIFERÆ (BRASSICACEÆ)

Thale Cress is a tiny, weak, very skinny, pale delicate herb. It ranges in size from moss-like minuteness in which it flowers when only 1/4 - 1 inch tall --or at best produces its basal leaves more than 2 inches long and throws up thin, wiry stems as long as 34 inches to create a mini tumbleweed effect; a study in tenuity. In any case, most sprout in late winter or early spring, bloom in April and May, then die when conditions become too dry in June. It prefers full sun or weak shade, and usually grows on ground that is poor, mossy, gravelly, and exposed.