Hosta 'Blue Mammoth' – Colossal Blue Foliage for Grand Gardens

Hosta 'Blue Mammoth' lives up to its prehistoric name with massive, intensely blue leaves that create a monumental presence. Registered in 2010 by Aden-Ruh, this giant cultivar represents modern breeding for size and color intensity.

Botanical Profile

Family:	Liliaceae (lil-ee-AY-see-ee)
Genus:	Hosta (HOSS-tuh)
Cultivar:	'Blue Mammoth'
Hybridizer:	Aden-Ruh
Registration Year:	2010

Mammoth Proportions & Intense Blue

The leaves of 'Blue Mammoth' are enormous—broadly ovate, deeply cupped, and heavily textured with a thick waxy bloom that produces a stunning, deep blue coloration. The substance is exceptional, making the leaves nearly leathery. A mature clump can span 5-6 feet (1.5-1.8 m) across, with individual leaves reaching impressive dimensions. The blue color holds remarkably well into summer, especially in cooler climates.

Cultivation for Giants

Growing 'Blue Mammoth' to its full potential requires deep, rich, moisture-retentive soil with excellent drainage. Amend planting holes generously with compost. Consistent moisture is critical—never allow the soil to dry out. Site in morning sun with afternoon shade or bright dappled shade to maintain the waxy blue coating. Allow 6+ feet (1.8+ m) diameter at maturity. Mulch heavily to conserve moisture and keep roots cool.

Modern Breeding Achievement

The Aden-Ruh collaboration combines two legendary names in hosta breeding. Their 2010 introduction represents the culmination of decades of selection for size, substance, and blue color intensity. 'Blue Mammoth' stands among the elite giant blue hostas like 'Blue Angel' and 'Empress Wu' as a testament to breeding progress.