Hosta 'Blue Mammoth'

Hosta

Family
Liliaceae (lil-ee-AY-see-ee)
Genus
Hosta (HOSS-tuh)
Synonym
Hardiness
Sun Exposure
4-6 ft. (1.2-1.8 m)
Bloom Time
Bloom Color
Height
Wavy
Corrugated
Spacing
Moderately
Deeply
Sun Exposure
Glaucous Bloom
Danger
Glaucous Bloom
Hardiness
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Color
Bloom Time
Other Details
Other details
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Seed Collecting
Partial to Full Shade
Full Shade
Plant Size (check one)
Growing Habit
Growth Rate
Leaf Shape
Leaf Appearance
Degree to which the appearance is present
Leaf Texture (top)
Leaf Texture (bottom)
Allow pods to dry on plant; break open to collect seeds
Leaf Color
Color of Leaf Margin
Leaf Substance
Number of Vein Pairs
Appearance of Margin
Margin Width
Flower Shape
Flower Fragrance
Does it set seed?
Patent Information
Foliage Color
Giant (leaf >144 square inches; plant >28” tall)
Bloom Characteristics
Mound-like
Water Requirements
Medium
Where to Grow
Broadly Ovate
Seed Collecting
Medium Blue-Green
Intensely Blue-Green
Fruit Shape
No margin
Fruit Size
1 (Thick)
Fruit Colors
more than 18
Growing Habit
Flat/Nearly Flat
Days to Maturity
No margin
Seed Type
Mid
Usage
Near White
Disease Resistance
Funnel
Leaf Type
No fragrance
Foliage Color
Yes; seed is viable
Bloom Characteristics
Water Requirements
Where to Grow
Other details
Propagation Methods
Soil pH requirements
Patent Information
Plant Size (check one)
Growing Habit
Growth Rate
Leaf Shape
Leaf Appearance
Non-patented
Degree to which the appearance is present
Leaf Texture (top)
Leaf Texture (bottom)
Leaf Color
Color of Leaf Margin
Leaf Substance
Number of Vein Pairs
Appearance of Margin
Margin Width
Flower Shape
Flower Fragrance
Does it set seed?
Flower Size
Flower Type
Blooming Habit
Foliage Habit
Color Patterns
Awards (if applicable)
Seed Type
Growth Habit
Days to Maturity
Awards (if applicable)
Bloom Shape
Other Details
Pruning Instructions
Kernel Color
Flower Shape
Flower Habit
Bloom Size
Color Pattern
Bloom Shape
Pruning Groups
Bloom Diameter
Heat (Pungency)
Fruit Shape
Fruit Size
Fruit Color
Disease Resistance
Seed Type
Flower Size
Size/Type
Flower Characteristics
Leaf Shape/Type
Average Water Needs; Water regularly; do not overwater
Leaf Texture
Leaf Color
Propagation
Pollination
Bearing Habit
Rootstock Vigor
Disease Resistance
Fruit Usage
Classification
Regional

This plant is said to grow outdoors in the following regions:

Dover, Delaware

Atlanta, Georgia

Cordele, Georgia

Marietta, Georgia

Machesney Park, Illinois

Barbourville, Kentucky

Reading, Massachusetts

Dearborn Heights, Michigan

Plainwell, Michigan

Lothair, Montana

Sewell, New Jersey

Cicero, New York

Pittsboro, North Carolina

Cincinnati, Ohio

Glouster, Ohio

Norristown, Pennsylvania

Lexington, Virginia

Bluefield, West Virginia

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Featured Videos

Gardener's Notes:

3
positives
1
neutral
0
negative
Sort By:
Sort By:
A
Dover, DE | April 2018 | positive

Love this hosta. Planted about 8 years ago, and still growing. Each leaf is 12 to 14 inches across. It's not intensely blue, but very ...Read More

S
Atlanta, GA (Zone 7b) | June 2005 | positive

I had ordered 3 catmint from a vendor and got 1 catmint and two of these! I knew these were not catmint but couldn't tell what would come...Read More

S
S
Reading, MA | June 2005 | positive

My most favorite blue of all. Its been growing in my yard over ten years. Large powdery blue leaves in spring turn to a blue-green in s...Read More

J
J
MD &, VA (Zone 7b) | September 2002 | neutral

Flower scapes 30"-36". Paul Aden intro.

Featured
Figure-Eight Sallow moth
(Psaphida resumens)
Arctic Redpoll
(Acanthis hornemanni)
Featured
Figure-Eight Sallow moth
(Psaphida resumens)
Arctic Redpoll
(Acanthis hornemanni)