Photo Property of Blue Sky Nursery, Ltd.

Hosta Blue Mammoth

These shade-loving, rhizomatous, clump-forming perennials bear wide corrugated intense blue-green leaves. White bell-shaped flowers bloom on one-sided racemes atop tall bracted scapes. Moderate growth rate.

Blooms mid-summer
2.5-4 ft tall x 5 ft spread
HARDY to -40°F (-40°C)
Attracts bees, butterflies, and hummingbirds
Moderate salt tolerance
Tolerant to juglone
Slug Resistant


Zone Zone 3
Exposure Partial to Full Shade
Moisture Moderate to Consistent Moisture