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Beach Pea

Lathyrus japonicus
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Lathyrus japonicus (Beach Pea) — botanical photograph
Pl. CA6F — Lathyrus japonicus
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Overview

Beach Pea (Lathyrus japonicus) is a perennial vine and herb native to regions including the Aleutian Islands, California, Connecticut, and parts of Europe and Asia such as Belgium, Denmark, Finland, Germany, Great Britain, Iceland, Ireland, Japan, Korea, and various areas in China. This plant thrives in diverse soil types—light, medium, or heavy clay—and prefers a pH between 6 and 7.5, making it adaptable to different growing conditions. Native to specific regions such as China North-Central, Japan, and Korea, Beach Pea is known for its edible leaves, which can be consumed raw or cooked after boiling to ensure safety. The leaves provide a light, dry texture when added to dishes. This plant also serves as a nitrogen fixer, enhancing soil fertility. Beach Pea is hardy in zones 3-7 and grows up to 0.6 meters tall with a single crown growth form. It prefers partial shade but can tolerate full sun to partial shade, requiring regular watering while ensuring good drainage to avoid overwatering. Its distinctive feature lies in its ability to thrive in various habitats, from northern regions like Canada and Alaska to southern areas such as Japan and Korea. While Beach Pea is not traditionally used for medicinal purposes, it holds value as an ornamental plant due to its adaptability and hardiness across different climates. Cultivating this plant can contribute to biodiversity and provide a source of edible leaves in gardens or natural landscapes where its light-to-moist habitat requirements are met.

Quick answers

What is Beach Pea?

Beach Pea (Lathyrus japonicus) is a perennial vine and herb native to regions including the Aleutian Islands, California, Connecticut, and parts of Europe and Asia such as Belgium, Denmark, Finland, Germany, Great Britain, Iceland, Ireland, Japan, Korea, and various areas in China.

Growingconditions · propagation · uses
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Cultivation

Beach Pea thrives in light to medium soil with a pH between 6 and 7.5, preferring areas that are dry to moist. It is hardy in zones 3-7 and can be propagated by seed or division. This perennial vine grows up to 0.6 meters tall and requires full sun to partial shade. Water the plant regularly but ensure it has good drainage to avoid overwatering. Harvest its edible leaves for use in cooking.
Light
8/10
Water
Dry, Moist
Soil
Light (sandy), Medium, Heavy (clay)
Hardiness
3-7
Life cycle
Perennial
Habit
Vine, Forb/herb
Mature size
0.6 m tall
Soil pH
6–7.5
For first-time growers

How to grow Beach Pea for the first time

8steps

Start with Beach Pea as a simple, low-maintenance perennial vine for your garden.

  1. 1

    What you'll need

    Seeds or seedlings, a container or garden bed, compost.

  2. 2

    Best time to plant

    Plant in spring after the last frost, or in fall before the first freeze.

  3. 3

    Soil and container prep

    Choose a location with well-draining soil; amend with compost if necessary. Ensure containers have drainage holes.

  4. 4

    Sowing or transplanting

    Direct sow seeds 1-2 cm deep, spaced about 30 cm apart. Transplant seedlings when they are strong enough to handle.

  5. 5

    First two weeks

    Water regularly to keep the soil moist but not waterlogged. Monitor for pests and diseases.

  6. 6

    Ongoing care

    Provide support like a trellis or fence for climbing. Water during dry spells, especially if in containers. Fertilize once a month with compost tea.

  7. 7

    Harvest or pruning

    Prune vines to maintain shape and encourage new growth. Harvest leaves as needed for culinary use.

  8. 8

    Common mistakes

    Overwatering, planting too deep, neglecting support structures.

VI

Edible & utility

Edible parts:Leaves
Edible uses: The Beach Pea (Lathyrus japonicus) is edible and its leaves can be consumed raw or cooked. Typically, the leaves are prepared by boiling to ensure safety before eating. They provide a light, dry texture to dishes.
Other uses:Nitrogen fixer
Contextrange · companions · related
VII

Distribution

51 native · 2 introduced
Distribution across2 continents· 51 native· 2 introduced
Europe12 regions
native (11)BelgiumDenmarkFinlandGermanyIcelandIrelandNorwayPolandRussiaSwedenUnited Kingdom
introduced (1)France
Asia3 regions
native (3)ChinaJapanSouth Korea
Broader regions
native:Aleutian Is., Baltic States, California, Connecticut, Illinois, Indiana, Kamchatka, Khabarovsk, Kuril Is., Labrador, Magadan, Maine, Manitoba, Masachusettes, Massachusetts, Minnesota, Nansei-shoto, New Hampshire, New Jersey, New York, Newfoundland, North Dakota, Nunavut, Ohio, Ontario, Oregon, Primorye, Québec, Rhode I., Sakhalin, Vermont, Washington, Wisconsin, Yakutskiya
introduced:Chile Central
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Specimen gallery

1 image
Lathyrus japonicus (Beach Pea) — botanical photograph
Beach Pea (Lathyrus japonicus)
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Explore further

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