• Photo of Lablab purpureus (Lablab purpureuss)

Plant Profile: Lablab purpureus

Taxonomy: Lablab purpureus

Names

Hyacinth Bean, Indian Bean, Lablab

  • Photo of Lablab purpureus (Lablab purpureuss)

Phonetic Spelling:LAB-lab pur-PUR-ee-us

Genus:Lablab

Species:purpureus

Family:Fabaceae

Hyacinth Bean has been cultivated for its edible beans, flowers, and leaves across Africa, Asia, and the Caribbean. In the United States, it serves primarily as feed for livestock, including uses as forage, hay, and silage. Additionally, it plays a role in enriching nitrogen levels in fallow fields. Presently, its most prevalent application here is as an ornamental plant within the cut flower market, prized for its vibrant late summer blooms and striking purple pods.

This twining vine features purplish stems and can be grown as an annual in home gardens, appreciated for both its decorative flowers and bean pods. It thrives when supported by a robust trellis to accommodate its growth. Preferring light, moist, well-drained soil and full sun, it should be planted after the last frost has passed and is particularly well-suited to hot, humid climates.

Lablab purpureus Feature Summary

Lablab purpureus Image Gallery

Tags

#purple
#hummingbirds
#showy flowers
#full sun tolerant
#heat tolerant
#annual
#summer annual
#wildlife plant
#nectar plant
#privacy
#vines
#twining
#ornamental vine
#purple stems
#exotic looking
#edible garden
#humidity tolerant
#butterfly friendly
#buncombe sun and shade

Similar Plants

Lablab purpureus Feature Summary

Attributes
It has been used in the Philippines and China as a stimulant, to reduce fever, to reduce flatulence, to stimulate digestion, and as an antispasmodic. In Namibia, the root has been used to treat heart conditions.
Attracts hummingbirds, a good choice for food plots and will attract deer.
Mature dried seeds are edible if thoroughly boiled, changing the water several times. Young immature pods can be cooked and eaten.
Fruit
Purple seedpods are 2 to 4 in. long smooth, flat, pointed, and contain 2 to 4 seeds. Seeds can be white, cream, pale brown, dark brown, red, black, or mottled depending on the variety.
Purple/Lavender
1-3 inches
Flowers
The fragrant flowers are in elongated clusters, pea-shaped and white, pink, or purple
Pink
Purple/Lavender
White
Fragrant
Showy
Long Bloom Season
Irregular
3-6 inches
Leaves
Pinnately divided leaves with 3 large leaflets 3-6 inches long. Each egg-shaped leaflet is smooth above and shorthaired below.
Green
Purple/Lavender
Compound (Pinnately , Bipinnately, Palmately)
3-6 inches
3-6 inches
Stem
Purplish stems
Purple/Lavender
Poisonous to Humans
Toxic only if large quantities are eaten. Weakness, vomiting, labored breathing, twitching, stupor, convulsions from mature dried seeds. TOXIC ONLY IF LARGE QUANTITIES EATEN.
Cyanogenic glycoside
Whole Plant Traits
Edible
Poisonous
Vine
Spreading
Climbing
Medium
Cultural Conditions
Full sun (6 or more hours of direct sunlight a day)
Acid (<6.0)
Neutral (6.0-8.0)
Good Drainage
Coastal
Mountains
Piedmont
Clay
Loam (Silt)
Sand
Landscape
Edible Garden
Butterfly Garden
Pollinator Garden
Screen/Privacy
Vertical Spaces
Butterflies
Hummingbirds

Lablab purpureus Attributes

Lablab purpureus: Uses (Ethnobotany)

It has been used in the Philippines and China as a stimulant, to reduce fever, to reduce flatulence, to stimulate digestion, and as an antispasmodic. In Namibia, the root has been used to treat heart conditions.

Lablab purpureus: Country Or Region Of Origin

Tropical Africa

Lablab purpureus: Wildlife Value

Attracts hummingbirds, a good choice for food plots and will attract deer.

Lablab purpureus: Edibility

Mature dried seeds are edible if thoroughly boiled, changing the water several times. Young immature pods can be cooked and eaten.

Lablab purpureus: Life Cycle

Annual
Biennial
Bulb
Perennial
Woody

Lablab purpureus: Recommended Propagation Strategy

Division
Grafting
Layering
Leaf Cutting
Root Cutting
Seed
Stem Cutting

Lablab purpureus: Climbing Method

Clinging
Scrambler
Tendrils
Twining

Lablab purpureus Fruit

Lablab purpureus: Fruit Description

Purple seedpods are 2 to 4 in. long smooth, flat, pointed, and contain 2 to 4 seeds. Seeds can be white, cream, pale brown, dark brown, red, black, or mottled depending on the variety.

Lablab purpureus: Fruit Color

grass
Purple/Lavender

Lablab purpureus: Fruit Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Lablab purpureus: Display/Harvest Time

Fall
Spring
Summer
Winter

Lablab purpureus: Fruit Length

< 1 inch
1-3 inches
> 3 inches

Lablab purpureus Flowers

Lablab purpureus: Flower Description

The fragrant flowers are in elongated clusters, pea-shaped and white, pink, or purple

Lablab purpureus: Flower Color

filter_vintage
Pink
filter_vintage
Purple/Lavender
filter_vintage
White

Lablab purpureus: Flower Inflorescence

Catkin
Corymb
Cyme
Head
Insignificant
Panicle
Raceme
Solitary
Spadix
Spike
Umbel

Lablab purpureus: Flower Value To Gardener

Edible
Fragrant
Good Cut
Good Dried
Long Bloom Season
Long-lasting
Showy

Lablab purpureus: Flower Bloom Time

Winter
Spring
Summer
Fall

Lablab purpureus: Flower Shape

Bell
Cross
Crown
Cup
Dome
Funnel
Irregular
Lipped
Radial
Saucer
Star
Trumpet
Tubular
Urn
Wheel

Lablab purpureus: Flower Size

1-3 inches
3-6 inches
< 1 inch
> 6 inches

Lablab purpureus Leaves

Lablab purpureus: Leaf Description

Pinnately divided leaves with 3 large leaflets 3-6 inches long. Each egg-shaped leaflet is smooth above and shorthaired below.

Lablab purpureus: Leaf Color

spa
Green
spa
Purple/Lavender

Lablab purpureus: Leaf Type

Compound (Pinnately , Bipinnately, Palmately)
Fronds
Needles
Sheath
Simple

Lablab purpureus: Leaf Arrangement

Alternate
Opposite
Other/more complex
Rosulate
Whorled

Lablab purpureus: Leaf Shape

Acicular
Auriculate
Cordate
Cuneate
Deltoid
Elliptical
Filiform
Lanceolate
Linear
Oblanceolate
Oblong
Obovate
Obtuse
Orbicular
Ovate
Palmasect
Palmatifid
Peltate
Pinnatifid
Pinnatisect
Reniform
Rhomboidal
Spatulate
Subcordate
Subulate

Lablab purpureus: Leaf Margin

Crenate
Crenulate
Dentate
Denticulate
Doubly Crenate
Doubly Dentate
Doubly Serrate
Entire
Lobed
Serrate
Sinuate
Undulate

Lablab purpureus: Hairs Present

No
Yes

Lablab purpureus: Leaf Length

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Lablab purpureus: Leaf Feel

Fleshy
Glossy
Leathery
Papery
Prickly
Rough
Rubbery
Slippery
Smooth
Soft
Velvety
Waxy

Lablab purpureus: Leaf Width

< 1 inch
1-3 inches
3-6 inches
> 6 inches

Lablab purpureus Stem

Lablab purpureus: Stem Description

Purplish stems

Lablab purpureus: Stem Color

grass
Purple/Lavender

Lablab purpureus: Stem Is Aromatic

No
Yes

Lablab purpureus Poisonous to Humans

Lablab purpureus: Poison Symptoms

Toxic only if large quantities are eaten. Weakness, vomiting, labored breathing, twitching, stupor, convulsions from mature dried seeds. TOXIC ONLY IF LARGE QUANTITIES EATEN.

Lablab purpureus: Poison Toxic Principle

Cyanogenic glycoside

Lablab purpureus: Poison Severity

High
Low
Medium

Lablab purpureus: Causes Contact Dermatitis

No
Yes

Lablab purpureus: Poison Part

Bark
Flowers
Fruits
Leaves
Roots
Sap/Juice
Seeds
Stems

Lablab purpureus Whole Plant Traits

Lablab purpureus: Plant Type

Annual
Bulb
Carnivorous
Edible
Epiphyte
Fern
Ground Cover
Herb
Herbaceous Perennial
Houseplant
Mushroom
Native Plant
Ornamental Grasses and Sedges
Perennial
Poisonous
Rose
Shrub
Succulent
Tree
Turfgrass
Vegetable
Vine
Water Plant
Weed
Wildflower

Lablab purpureus: Habit/Form

Arching
Ascending
Broad
Cascading
Climbing
Clumping
Columnar
Conical
Creeping
Dense
Erect
Horizontal
Irregular
Mounding
Multi-stemmed
Multi-trunked
Open
Oval
Prostrate
Pyramidal
Rounded
Spreading
Vase
Weeping

Lablab purpureus: Growth Rate

Slow
Medium
Rapid

Lablab purpureus: Maintenance

Low
Medium
High

Lablab purpureus: Texture

Fine
Medium
Coarse

Lablab purpureus Cultural Conditions

Lablab purpureus: Light

Dappled Sunlight (Shade through upper canopy all day)
Deep shade (Less than 2 hours to no direct sunlight)
Full sun (6 or more hours of direct sunlight a day)
Partial Shade (Direct sunlight only part of the day, 2-6 hours)

Lablab purpureus: Soil pH

Acid (<6.0)
Alkaline (>8.0)
Neutral (6.0-8.0)

Lablab purpureus: Soil Drainage

Frequent Standing Water
Good Drainage
Moist
Occasional Flooding
Occasionally Dry
Occasionally Wet
Very Dry

Lablab purpureus: Available Space To Plant

12 inches-3 feet
12-24 feet
24-60 feet
3 feet-6 feet
6-feet-12 feet
Less than 12 inches
more than 60 feet

Lablab purpureus: NC Region

Coastal
Mountains
Piedmont

Lablab purpureus: USDA Plant Hardiness Zone

thermostat
10a
thermostat
10b
thermostat
11a
thermostat
11b

Lablab purpureus: Soil Texture

Clay
High Organic Matter
Loam (Silt)
Sand
Shallow Rocky

Lablab purpureus Landscape

Lablab purpureus: Landscape Theme

Asian Garden
Butterfly Garden
Children's Garden
Cottage Garden
Cutting Garden
Drought Tolerant Garden
Edible Garden
English Garden
Fairy Garden
Garden for the Blind
Native Garden
Nighttime Garden
Pollinator Garden
Rain Garden
Rock Garden
Shade Garden
Water Garden
Winter Garden

Lablab purpureus: Design Feature

Accent
Barrier
Border
Flowering Tree
Foundation Planting
Hedge
Mass Planting
Screen/Privacy
Security
Shade Tree
Small groups
Small Tree
Specimen
Street Tree
Understory Tree

Lablab purpureus: Resistance To Challenges

Black Walnut
Compaction
Deer
Diseases
Drought
Dry Soil
Erosion
Fire
Foot Traffic
Heat
Heavy Shade
Humidity
Insect Pests
Pollution
Poor Soil
Rabbits
Salt
Slugs
Squirrels
Storm damage
Urban Conditions
Voles
Wet Soil
Wind

Lablab purpureus: Landscape Location

Coastal
Container
Hanging Baskets
Houseplants
Lawn
Meadow
Naturalized Area
Near Septic
Patio
Pond
Pool/Hardscape
Recreational Play Area
Riparian
Rock Wall
Slope/Bank
Small Space
Vertical Spaces
Walkways
Woodland

Lablab purpureus: Attracts

Bats
Bees
Butterflies
Frogs
Hummingbirds
Moths
Pollinators
Predatory Insects
Reptiles
Small Mammals
Songbirds
Specialized Bees