The **curtain creeper** plant, scientifically known as *Thunbergia grandiflora*, is a fast-growing, vigorous vine native to tropical regions of Asia and Africa. It is commonly called the **blue trumpet vine** or **sky flower** due to its striking large, funnel-shaped blue flowers with a yellow throat. The plant typically grows as a climbing vine, often used to cover trellises, walls, fences, or even to create natural "curtains" of greenery, which is why it's called a "curtain creeper."

**Characteristics:**

- **Flowers:** The blooms are large, tubular, and predominantly blue or lavender, with a bright yellow center, making them highly ornamental.

- **Leaves:** It has lush, heart-shaped, dark green foliage that helps to create a dense covering, making it ideal for privacy screens or as an attractive groundcover.

- **Growth Habit:** The plant is known for its rapid growth, reaching up to 15-20 feet (4.5-6 meters) in length, making it suitable for vertical spaces like fences or pergolas.

- **Care Requirements:** Curtain creepers thrive in warm, tropical climates with plenty of sunlight, although they can tolerate partial shade. They need well-drained soil and moderate watering, and they do best when allowed to climb or spread across a support structure.

This vine can be a beautiful addition to gardens, providing both visual appeal and coverage while attracting pollinators like bees and butterflies. However, in some areas, it may become invasive if not properly managed.