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Blue Plantain-Lily (Hosta ventricosa), whole plant
  • Blue Plantain-Lily — close-up of leaves and flowers
  • Blue Plantain-Lily — seasonal appearance
  • Blue Plantain-Lily in a garden setting

Blue Plantain-Lily

Hosta ventricosa

Easy · Beginner friendly

About Blue Plantain-Lily

Blue Plantain Lily is one of the few hostas that grows true from seed, producing bold heart-shaped glossy dark green leaves with deeply impressed veins. Growing 24 to 30 inches tall and 3 to 4 feet wide, it sends up 3-foot stalks of rich violet bell-shaped flowers in midsummer, the most showy of any hosta species. A heritage shade-garden perennial loved across the eastern US.

  • Cold-hardy
  • Shade-tolerant
WATER
Regular
Top inch dry
LIGHT
Part shade
2–4 hrs direct
HARDY
Hardy to -40°F (-40°C)
USDA hardiness zones 3–9

How to care for Blue Plantain-Lily

Watering

  • Springevery 5 days
  • Summerevery 3 days
  • Fallevery 7 days
  • Winterpause watering

Soil · Rich & well-draining

  • Top dressingCompost10%
  • Main mixPotting soil + compost 3:180%
  • DrainageGravel10%

Top up the compost layer each season.

FERTILIZER

Balanced Feed 14-14-14

An even feed covers all three needs at once, keeping leaves, roots and blooms moving together with nothing pushed out of balance.

N33%P33%K33%
  • Nitrogen · Leaves
  • Phosphorus · Roots + Blooms
  • Potassium · Strength
  • Springevery 45 days
Get watering reminders for Blue Plantain-Lily — free on iPhoneDownload on the App Store

At a Glance

  • NativeEast Asia
  • Height1.5–2.5 ft (0.5–0.8 m)
  • Spread2–3 ft (0.6–0.9 m)
  • Flower colorPurple
  • Foliage colorGreen
  • SoilLoamy, Moisture-retentive, Rich
  • LocationsYard

Bloom time

BLOOM CYCLE

Peak bloom

Jun–Aug

J
F
M
A
M
J
J
A
S
O
N
D

Rich violet bell-shaped flowers in midsummer, among the showiest hostas

Fragrance

LIGHT FRAGRANCE

Flowers may be lightly fragrant, especially in warm evening air.

Toxicity

Humans Slight · Pets Moderate

saponins

Slight

  • Leaf
  • Ingestion

EXPOSURE Eating leaves.

EFFECT Saponins can cause mild GI upset.

NOTE Documented concern for humans: Saponins can cause mild GI upset.

Moderate

  • Leaf
  • Ingestion

EXPOSURE Eating leaves.

EFFECT ASPCA: vomiting, diarrhea, depression due to saponins.

NOTE ASPCA lists Hosta as toxic to dogs and cats.

Moderate

  • Leaf
  • Ingestion

EXPOSURE Eating leaves.

EFFECT ASPCA: vomiting, diarrhea, depression due to saponins.

NOTE ASPCA lists Hosta as toxic to dogs and cats.

Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.

DISTRIBUTION

Blue Plantain-Lily · Native
  • Native
  • Introduced
  • East Asia

History

Illustrated historical scene for Blue Plantain-Lily

Hosta ventricosa, commonly called blue plantain lily, bellflower hosta, or clustered hosta, is one of the few taxonomically stable wild hosta species, native to central and eastern China and Korea. Scottish botanist William Forsyth introduced the plant to Britain in the late 18th century, making it among the first hostas grown in Europe. English botanist John Stuart, third Earl of Bute, received early specimens.

Linnaeus's student Philip Miller and later German botanist Heinrich Gustav Adolf Engler described it formally under various names. The plant is notable as the only hosta species that consistently produces viable seed through apomixis, a feature valuable in breeding.

Its broad deep green leaves and rich purple bellflower flowers make it one of the classic hostas of cottage and shade gardens. Native to China, introduced to European gardens in the 1790s and to American gardens by the early 1800s, one of the first hostas grown in the West.

Symbolism & meaning

What It Symbolizes

The Blue Plantain-Lily suggests lasting beauty because, almost uniquely among hostas, it comes seed-true, passing its form unchanged from one generation to the next. Its dark, almost black-green leaves add a second kind of elegance, the deepest foliage in the genus. In the shade garden, Hosta ventricosa is an heirloom in the strictest sense, an inheritance written in seed rather than only in division.

  • Lasting beauty — seed-true inheritance preserves form
  • Dark elegance — deepest green foliage of all hostas

Where the Name Comes From

The name Blue Plantain-Lily describes its lily-like flowers. 'ventricosa' from Latin means swollen or belly-shaped, for the distinctive bulging base of the flower tube.

Uses & Fun Facts

  • Reliable shade-garden mainstay for woodland borders
  • Glossy heart-shaped leaves form bold shade clumps
  • Young shoots eaten as urui spring vegetable in Japan
  • Lavender flower spikes attract bumblebees in summer

Related plants

More Hosta plants

Plants with similar care

Frequently asked questions

How often should I water Blue Plantain-Lily?

Water about every 5 days during the growing season, and always let excess water drain away.

How much light does Blue Plantain-Lily need?

Part shade: 2–4 hrs direct. Watch the leaves — scorching or stretching means the light needs adjusting.

Is Blue Plantain-Lily toxic to cats or dogs?

Pets Moderate (Dogs Moderate · Cats Moderate) Educational information, not medical or veterinary advice. If exposure is suspected, contact a doctor or veterinarian.

Is Blue Plantain-Lily easy to grow?

Yes — it is considered an easy, beginner-friendly plant.

When does Blue Plantain-Lily bloom?

It typically blooms Jun–Aug in the Northern Hemisphere.

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