Hosta 'Blue Mammoth' (sieboldiana)
Plantain lily 'Blue Mammoth'
Hosta Hosta
'Blue Mammoth' _ 'Blue Mammoth' is a large, clump-forming, herbaceous perennial with thick, puckered, broadly oval, grey-blue leaves and tall scapes bearing racemes of funnel-shaped, white to pale lavender flowers in summer.
Hosta 'Blue Mammoth' (sieboldiana) is: Deciduous
Clump-forming
White, Pale-lavender in Summer
Grey, Blue in Spring; Grey, Blue in Summer; Blue, Grey in Autumn
Slugs , Snails , Vine weevil Slugs , Snails , Vine weevil
Remove dead foliage at the end of the growing season.
Division
Sign up for your FREE ACCOUNT today or login to receive detailed monthly care instructions
Hosta 'Blue Mammoth' (sieboldiana) (Plantain lily 'Blue Mammoth' ) will reach a height of 1m and a spread of 1.5m after 2-5 years.
City, Cottage/Informal, Beds and borders, Ground Cover, Containers, Underplanting
Prefers slightly acid or neutral, fertile, moist but well-drained soil in partial shade, sheltered from cold, dry winds. Will tolerate full sun if the soil is kept consistently moist. Shallow, chalky soils can cause poor leaf colour. Mulch in spring.
Clay, Loamy
Moist but well-drained, Well-drained
Acid, Neutral
Partial Shade, Full Shade
North, East, West
Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Hosta 'Blue Mammoth' (sieboldiana)
Plantain lily 'Blue Mammoth'
Hosta Hosta
'Blue Mammoth' _ 'Blue Mammoth' is a large, clump-forming, herbaceous perennial with thick, puckered, broadly oval, grey-blue leaves and tall scapes bearing racemes of funnel-shaped, white to pale lavender flowers in summer.
Deciduous
Clump-forming
Create your free SHOOT garden and make a record of the plants in your garden.
Add your own photos, notes, get monthly email reminders on how to care for your plants, and connect with other gardeners. Get started now.
White, Pale-lavender in Summer
Grey, Blue in Spring; Grey, Blue in Summer; Blue, Grey in Autumn
Slugs , Snails , Vine weevil
Remove dead foliage at the end of the growing season.
Division
Create a free SHOOT account and get instant access to expert care advice for this and other plants in your garden.
You'll also receive handy monthly email reminders of what needs doing. Create your free account.
Hosta 'Blue Mammoth' (sieboldiana) (Plantain lily 'Blue Mammoth' ) will reach a height of 1m and a spread of 1.5m after 2-5 years.
City, Cottage/Informal, Beds and borders, Ground Cover, Containers, Underplanting
Prefers slightly acid or neutral, fertile, moist but well-drained soil in partial shade, sheltered from cold, dry winds. Will tolerate full sun if the soil is kept consistently moist. Shallow, chalky soils can cause poor leaf colour. Mulch in spring.
Clay, Loamy
Moist but well-drained, Well-drained
Acid, Neutral
Partial Shade, Full Shade
North, East, West
Sheltered
Hardy (H4)
Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
Hosta 'Blue Mammoth' (sieboldiana) (Plantain lily 'Blue Mammoth' )
Hosta virus X
Virus or Viroid
Present (Limited)
2
3
Virus affecting Hosta; present in the UK since at least the early 2000’s. Mechanically transmitted so spread can be reduced by good hygiene practices and use of healthy propagating material within the industry.
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
In order to add a note on this plant, please add this plant to your plant lists.
This plant likes... | Garden match | |
Soil types: | Clay, Loamy | Tell us... |
Soil drainage: | Moist but well-drained, Well-drained | Tell us... |
Soil pH: | Acid, Neutral | Tell us... |
Light: | Partial Shade, Full Shade | Tell us... |
Aspect: | North, East, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
To add ? to your lists,
login to your account or subscribe.
Find out more about plant lists here
or Login
To add notes for this plant login to your account or register for a new account.
Sign up for freeor Login
To add images for this plant login to your account or register for a new account.
Sign up for freeor Login
To check if this plant is suitable for your garden first login to your account or subscribe.
or Login