Hosta 'Empress Wu': The Largest Hosta in the World

Hosta 'Empress Wu': The Undisputed Queen of Giant Hostas

Hosta 'Empress Wu' (PP20774), hybridized by Skaggs and introduced in 2008, holds the title of the largest hosta ever introduced. Its colossal leaves—up to 28 inches long and 24 inches wide—on a plant that can exceed 4 feet tall and 6–7 feet wide, redefine the upper limits of the genus. Named for China's only female emperor, it rules the hosta kingdom.

Unprecedented Scale

The leaves are simply enormous—18–28 inches long, 14–24 inches wide, deeply corrugated, thick, and dark green with a slight bluish cast. The petioles are thick and sturdy, supporting the massive blades. The plant forms a monumental mound 4+ feet tall and 6–7+ feet wide at maturity (5+ years). Pale lavender flowers on 5-foot scapes in early summer.

Growing the Giant

'Empress Wu' demands space, time, and resources: rich, deep, consistently moist soil; partial to full shade; and years to reach full size. It's a heavy feeder—ample compost and fertilizer. Hardy in USDA zones 3–9. The thick leaves resist slugs. Patience is essential; the first few years are underwhelming.

Taxonomic Profile

• Family: Liliaceae
• Genus: Hosta
• Cultivar: 'Empress Wu' (PP20774)
• Hybridizer: Skaggs
• Introduced: 2008

Ultimate Specimen

'Empress Wu' is not for every garden—it requires a dedicated spot and long-term commitment. But for those with space and patience, it's the ultimate hosta trophy. A single mature clump is a landscape feature visible from across the garden. The empress reigns supreme.