Welcome to HostasDirect!

Hosta 'Blue Mammoth'

Have a good photo we can use? Please send it to photos@hostasdirect.com and earn 200 points if it's chosen!

More Views

Hosta 'Blue Mammoth'

Availability: Out of stock

This picture is worth a thousand words! Elegant blue! Wide blue leaves.


A sieboldiana hybrid, one of the largest blue cultivars available. The huge leaves are lighter blue than most of this type and are nicely puckered with lots of substance. Beautiful near-white flowers. Rapid grower. Slug resistant. Use as a specimen alone or in the background of your garden. A mature clump can get over 5' wide!
Additional Information

Additional Information

Year New at HostasDirect 2000
Growing Zones No
Plant - Height 34"
Plant Size Giant
Plant - Shape Mound-like
Growth Rate Fast
Sun Resistant Yes
Slug Resistant Yes
Plant - Wave Spacing 67.5"
Plant - Specimen Spacing 90"
Plant - Hosta of the Year No
Leaf Color (Center) Blue
Leaf Color (Margin) No
Leaf - Cupped No
Leaf - Corrugation Intensely
Leaf - Wavy/Undulated No
Fragrant Flower No
Leaf - Margin Size No
Leaf - Seasonal Color Change No
Leaf - Length 12
Leaf - Width 14
Leaf - Speckled No
Leaf - Streaked No
Flower - Color Lavender, Pale
Flower - Scape Color No
Bloom Month(s) No
Petiole Color No
Plant - Patented No
Hybridizing - Parentage [H. sieboldiana]
Hybridizing - Originator Aden P
Hybridizing - Sport Of No
Hybridizing - Year Registered No

Customer Reviews 1 item(s)

One of my favorites
I love blue mammoth. This plant has been growing in my garden for around 8 years. I have moved and divided it the plant and it has thrived in all the locations I have planted it. Blue mammoth still looks nice into the fall.
Review by Beth / (Posted on 6/2/2015)