That looks to like Blue passionflower which is actually a vine that can easily be trained to be a hedge. According to AI:
"Passiflora caerulea, commonly known as the blue passionflower, can make for a stunning hedge! It's a fast-growing, climbing plant with vibrant blue and white flowers that attract pollinators like bees and butterflies. Here are some tips for using it as a hedge:
- Support structure: Since it's a climbing vine, it will need a sturdy trellis, fence, or other support to grow on. This will help create a hedge-like appearance.
- Pruning: Regular pruning will keep it tidy and encourage dense growth. It's important to trim back excessively long vines to maintain the hedge shape.
- Location: Choose a sunny spot for planting. It thrives in full sunlight but can tolerate partial shade.
- Soil and watering: Ensure well-drained soil and water regularly, especially during dry periods. It's relatively drought-tolerant once established."
Here is a Wikipedia link for it: