Ophiopogon japonicus

Blue Snake's Beard

Convallaria japonica, or Blue Snake’s Beard, is an evergreen perennial with tufts of grassy foliage and delicate bell-shaped flowers in May. Small white or lilac-tinted blooms are followed by bluish-purple berries, adding interest beyond the flowering season. With its clump-forming habit, it provides reliable groundcover in sun or shade and lends a naturalistic feel to Irish borders and underplantings.

Flowering Months

Jan J

Feb F

Mar M

Apr A

May M

Jun J

Jul J

Aug A

Sep S

Oct O

Nov N

Dec D

Size

Max Height

0.5 m — 1.0 m

Max Spread

0.5 m — 1.0 m

Growth Habit

Grows in tight bunches from base, forming rounded groups., Forms dense upright tufts or clusters of leaves and stems.

Planting Position

Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.

Full Sun Full Shade Part Shade

Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.

North South East West

Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.

Exposed / Sheltered

Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.

(−5 to +1 °C) Half-hardy

Ideal Soil Conditions

Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.

Clay Loam Sand

Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.

Moist but permeable / Free draining

Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.

Acid Neutral

Plant Uses & Merits

Uses

Patios / Courtyards
Coastal Areas
Containers
Rockeries
Banks / Slopes
Flower Borders
Edging
Groundcover
Underplanting

Merits

Generally disease-free
No pruning required

Ophiopogon japonicus

Blue Snake's Beard

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Ophiopogon japonicus

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