Small-Leaved Plantain Lily

Hosta sieboldii

Easy · Beginner friendly

About Small-Leaved Plantain Lily

Siebold's Hosta is a compact Japanese species with narrow lance-shaped green leaves often edged in cream or white, one of the smaller classic hostas perfect for shade borders and edging. Growing 12 to 18 inches tall and 12 to 24 inches wide, it produces abundant purple striped funnel-shaped flowers on 2-foot scapes in late summer. A historical workhorse hosta widely planted in American shade gardens.

Shade-tolerant
Cold-hardy
Compact

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 Small-Leaved 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 Small-Leaved Plantain Lily — free on iPhoneDownload on the App Store

At a Glance

NativeEast Asia
Height1–1.5 ft (0.3–0.5 m)
Spread1.5–2.5 ft (0.5–0.8 m)
Flower colorPurple
Foliage colorGreen, Variegated
SoilMoisture-retentive, Loamy, Rich
LocationsYard

Bloom time

BLOOM CYCLE

Peak bloom

Jun–Sep

Purple striped flowers on 2-foot scapes in late summer

Fragrance

LIGHT FRAGRANCE

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

Toxicity

Humans Slight · Pets Moderate

saponins

HumansDogsCats

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

Native

East Asia

History

Illustrated historical scene for Small-Leaved Plantain Lily

Hosta sieboldii is a Japanese hosta species named for Philipp Franz von Siebold, the Dutch physician who collected many Japanese plants during his 1823 to 1829 and 1859 to 1863 residencies on the island of Dejima in Nagasaki Bay. The plant is native throughout much of Japan, from Hokkaido through Kyushu, often in moist forest clearings. Belgian botanist Henri Jean François Willebrord Blume validated the species name in 1844.

The type form has narrow green leaves with distinct white margins, and the variety albomarginata has been cultivated in Japan for centuries and in Europe since the 19th century. It remains a heritage variegated hosta valued in cottage and shade gardens.

Narrow-leaved H. sieboldii descendants include the cultivars Ginko Craig, Kabitan, and Golden Tiara. Introduced from Japan by German physician and botanist Philipp Franz von Siebold in the 1830s, who smuggled it from Nagasaki despite Japanese export restrictions.

Symbolism & meaning

What It Symbolizes

The Small-Leaved Plantain Lily evokes Lasting kindness — a modest hosta passed quietly between gardens for generations, dependable in shade where flashier plants fail. It is also a Smuggled treasure, carried out of secluded Edo-era Japan by Philipp von Siebold in the 1830s, transforming Western shade gardens. A small plant with a long, quietly subversive history.

Lasting kindness — reliable small hosta for generations
Smuggled treasure — brought out of secluded Japan in 1830s

Where the Name Comes From

The name Small-Leaved Plantain Lily describes its small leaves. 'sieboldii' honors Philipp Franz von Siebold (1796-1866), German physician who introduced many Japanese plants to Europe.

Uses & Fun Facts

Variegated lance-shaped leaves brighten shaded borders
Spreading clumps fill dim woodland-garden gaps
Young shoots eaten as urui vegetable in Japan

Related plants

More Hosta plants

Plants with similar care

Frequently asked questions

How often should I water Small-Leaved Plantain Lily?

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

How much light does Small-Leaved Plantain Lily need?

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

Is Small-Leaved 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 Small-Leaved Plantain Lily easy to grow?

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

When does Small-Leaved Plantain Lily bloom?

It typically blooms Jun–Sep in the Northern Hemisphere.

YardMate

Identify any plant in seconds

Snap a photo — YardMate names the plant, diagnoses problems, and reminds you when to water.

Download on the App Store