Amethyst Falls wisteria is a compact American native wisteria vine notable for its fragrant, lavender-blue flower clusters that bloom in spring and frequently rebloom in the summer. It's less invasive than Asian species and is ideal for smaller gardens, arbors, and trellises. Unlike some wisterias, it typically blooms in its first year and is relatively easy to care for. The average length is 8 to 10 feet, but it can grow to 30 feet over time. Prefers full sun to partial shade.