Blue hosta

Hosta sieboldiana | Also known as: Plantain lily, Giant blue hosta, Hosta | Rating: 0 votes | Print / Pdf

This giant blue hosta has monster sized leaves. Only grow it in a big garden!

Hosta sieboldiana has large grey-green leaves, heart shaped with a wrinkled texture sometimes with creamy white edges. In summer light purple flowers can be seen. It grows best in partial shade, with moist but well-drained soil. It grows to around 60cm tall and 90cm across. It's an easy plant to grow, great for beginners. However slugs and snails love these plants so watch out for them or they'll eat the leaves. It's not usually affected by disease. Prune the dead foliage at the end of the growing season.

Rate it:
Known dangers?
  • no
Height [m]
  • 0.9
Spread [m]
  • 1.2
Dominant flower colour
  • Silver
Flower Fragrance
  • No, neutral please
Flowering seasons
  • Early summer
Foliage in spring
  • Blue-green
Foliage in summer
  • Blue-green
Foliage in Autumn
  • Blue-green
Propagation methods
  • seed
  • division
Growth habit
  • Clump-forming
  • Acidic
  • Neutral
Hardiness zone
  • Z3-9
Heat zone
  • H9-2
Winter temperatures [°C]
  • -40 - -1
Heat days
  • 1 - 150
  • well-drained
  • well-drained but frequently watered
Soil type
  • Clay
  • loams
Sun requirements
  • Partial shade
  • Sheltered
Standard category
  • Flowers & bulbs
  • Perennials
Grown for
  • Ornamental Foliage
Creative category
  • Kid Approved
  • For Beginners
  • Pond plants
Garden type
  • Cottage garden
  • Containers
  • Pond
Garden spaces
  • Underplanting
  • Borders
Gardening expertise
  • beginner
Time to reach full size
  • 2 to 5 years