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    • Photo of Lathyrus japonicus flower by Danielle Langlois

    Photo by Danielle Langlois

    This file is licensed under the Creative Commons Attribution-Share Alike 3.0 license.

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    Lathyrus japonicus

    Also Known As

    • Beach Sweet Pea

    Plant type

    groundcover, vine

    size

    • H: 8'-12'
    • W: 2'

    planting zones

    • 5a-9b

    Lathyrus japonicus plant details

    Lathyrus japonicus is a fast-growing broadleaf deciduous groundcover vine with green foliage. In summer lavender flowers emerge. Grows well with sun and even moisture water. Does well in lean and well-drained soil.

    CHARACTERISTICS OF Lathyrus japonicus

    Plant type: groundcover vine
    Plant family: fabaceae
    Foliage: deciduous green
    Mature size: 2 FT wide, 8 FT - 12 FT - tall
    Flowers: lavender blooms in summer
    Uses: trellis

    GROWING CONDITIONS for Lathyrus japonicus

    USDA Zones: 5a - 9b
    Sun exposure: sun
    Watering frequency: even moisture
    Soil needs: lean and well-drained

    Nursery contributed plant descriptions

    Beach Sweet Pea. A tough vining plant for poor sandy soil conditions it will vigorously cover a slope or climb up a small trellis. Dark lavender flowers throughout the summer. 8-12'.

    By: Avant Gardens

    Gardening facts about Lathyrus japonicus plant

    How to Grow Lathyrus japonicus

    • Sun Exposure

      • sun

    • Water Needs

      • even moisture

    • Soil Needs

      • lean
      • well-drained

    Features

    • Foliage Color

      • green

    • Flower Color

      • lavender

    • Flower Season

      • summer

    • Foliage Season

      • deciduous

    See other plant types of Lathyrus for your garden

    Lathyrus aureus

    aka Golden Yellow Pea, Spring Vetchling

    Plant Type

    Perennial

    Zones

    5a-10b

    Size

    Height: 2'-3'

    Width: 2'-3'

    • sun - mostly shade
    • even moisture - regular
    Photo of Lathyrus aureus flower, foliage by Kurt Stueber
    View Plant

    Lathyrus vernus

    aka Orobus vernus, Everlasting Sweet Pea, Perennial Sweet Pea, Spring Bitte, Spring Pea, Spring Vetch, Spring Vetchling

    Plant Type

    Perennial

    Zones

    5a-9b

    Size

    Height: 1'-2'

    Width: 1'-2'

    • sun - dappled shade
    • even moisture - drought tolerant
    Photo of Lathyrus vernus flower by Dancing Oaks Nursery
    View Plant

    More Options

    Lathyrus vernus f. roseus

    aka Lathyrus vernus f. rosea, Spring Vetch

    Plant Type

    Perennial

    Zones

    5a-9b

    Size

    Height: 6"-12"

    Width: 6"-12"

    • sun - mostly sun
    • regular
    Photo of Lathyrus vernus f. roseus flower by Dancing Oaks Nursery
    View Plant

    Lathyrus odoratus 'Black Knight'

    aka Black Knight Sweet Pea

    Plant Type

    Vine, Annual / Biennial

    Zones

    1-11

    Size

    Height: 5'-6'

    Width: 1'-2'

    • sun - mostly sun
    • even moisture - regular
    Photo of Lathyrus odoratus 'Black Knight' flower by Annie's Annuals & Perennials
    View Plant

    More Options

    Lathyrus odoratus 'Lord Nelson'

    aka Lord Nelson Old Spice Sweet Pea

    Plant Type

    Vine, Annual / Biennial

    Zones

    1-12

    Size

    Height: 4'-6'

    Width: 1'-2'

    • sun - mostly sun
    • even moisture - regular
    Photo of Lathyrus odoratus 'Lord Nelson' flower by Annie's Annuals & Perennials
    View Plant

    More Options

    +66 more Lathyrus
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