The Everbearing Mulberry (often Morus nigra or hybrid Morus alba x rubra) is a fast-growing, self-fertile, and low-maintenance tree known for producing sweet, dark purple, blackberry-like fruit over an extended, months-long season. Typically, these trees grow to roughly 10-15 feet tall, are Hardy in USDA Zones 4–10, and begin bearing fruit within 2-3 years.