General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Partial or Dappled Shade
Partial Shade to Full Shade
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Plant Height: 19 inches tall.
Plant Spread: 36 to 48 inches
Leaves: Other: Elliptic, Wavy, Slightly shiny, Slightly Rippled, Medium green or Dark green leaves.
Flowers: Showy
Flower Color: Purple
Red
Other: Numerous bright purple buds that never open. Closed flower shape.
Flower Time: Summer
Late summer or early fall
Underground structures: Rhizome
Uses: Groundcover
Will Naturalize
Propagation: Seeds: Will not come true from seed
Other info: It does not set seed.
Propagation: Other methods: Division
Other: rhizomes

Image
Common names
  • Hosta
Botanical names
  • Accepted: Hosta clausa
  • Synonym: Hosta clausa var. normalis

Photo Gallery
Location: Ottawa, ON
Date: 2023-09-08
Location: Apple Valley MN
Date: 2017-08-19
H. clausa var. clausa
Location: Richmond, B.C.
Date: 2009-08-11
This shows the rich purple colour of the inflorescence. It sets s

Date: 2018-09-03
Location: Richmond, B.C.
Date: 2009-08-06
This is clausa var. normalis and it has conventional, open flower
Location: Ottawa, ON
Date: 2018-08-12
Location: Apple Valley MN
Date: 2018-10-03
Hosta clausa Fall colors
Location: Apple Valley MN
Date: 2017-06-27
This is a great ground cover hosta! This grouping is 4' x 6'
Uploaded by ViolaAnn
Location: Botanischer Garten der Universitaet Wien
Date: 2016-10-16
H. clausa var. normalis
Location: Richmond, B.C.
Date: 2011-02-27
Clausa is the earliest to break for me any given year. This was s

Photo Courtesy of Busse Gardens. Used with permission.
  • Uploaded by Joy
Location: Botanischer Garten der Universitaet Wien
Date: 2016-10-16
H. clausa var. normalis
Uploaded by ViolaAnn
Location: Ottawa, ON
Date: 2011-08-23
'clausa' haws intensely purple buds that never open.
Location: Ottawa, ON
Date: 2012-06-20
H. 'Clausa var. Clausa' leaf
Comments:
  • Posted by ViolaAnn (Ottawa, ON Canada - Zone 5a) on Nov 20, 2011 10:02 PM concerning plant:
    clausa is highly rhizomatous and can become invasive in the right conditions. Grow it where nothing else likes to grow!
  • Posted by PieterK (Richmond, B.C. - Zone 7b) on Apr 25, 2024 11:49 AM concerning plant:
    Seems to me this species listing should properly reflect all forms of it:
    clausa var. clausa
    clausa var. normalis
    clausa var. stolonifera
    All three are in cultivation with the most common one being var. clausa.

    Pieter

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