I think that it is
The white flowers are
For sure, they are
Ok look, you can fund them
Give me a break I don't know!
One possible blue flowering shrub you may have in your garden is the hydrangea. It is known for its large, showy clusters of blue flowers and is a popular choice for gardens.
common dogwood
common dogwood
In sub-tropical areas, allamanda cathartica is a soft shrub with clusters of bright yellow flowers at the tips of twigs. Not strongly fragrant, at least not in my garden.
I wonder if you could be thinking of Oleander, an evergreen shrub with long leaves and clusters of flowers in shades from white through pink to red.
Myrtle?
Could be lilac.
Dewberry
Aromatic evergreen sub-shrub, numerous, square, branching stems that grow to 2 ft (61 cm), the small leaves are lance-shaped with fine hairs. Flowers bloom in shades of rose, purple, blue, white. And more . . .
A flowering shrub is any shrub that flowers. Some have more showy flowers than others but all shrubs flower.
A barberry is a thorny shrub of the genus Berberis, which bears yellow flowers and red or blue-black berries.
Sumac