North America Native Plant

Pea

Botanical name: Lathyrus

USDA symbol: LATHY

Life cycle: annual

Habit: vine

Native status: It's either native or not native in Alaska âš˜ Status ranges from native, non-native that reproduces and persists in the wild, and, a waif that isn't naturalizedCanada âš˜ It's either native or not native in Greenland âš˜ Non-native, reproduces and persists in the wild in Hawaii âš˜ It's either native or not native in the lower 48 states âš˜ Native to St. Pierre and Miquelon  

Growing Peas in Your Garden: A Guide to the Lathyrus Genus If you’ve ever dreamed of adding some climbing charm to your garden with sweetly scented flowers that dance in the breeze, the Lathyrus genus (commonly known as peas) might just be calling your name. This diverse group of flowering ...

Growing Peas in Your Garden: A Guide to the Lathyrus Genus

If you’ve ever dreamed of adding some climbing charm to your garden with sweetly scented flowers that dance in the breeze, the Lathyrus genus (commonly known as peas) might just be calling your name. This diverse group of flowering plants offers gardeners a delightful mix of annual and perennial options that can transform ordinary spaces into something quite magical.

What Exactly Are Lathyrus Plants?

Lathyrus plants are forbs or herbs – essentially, they’re vascular plants that don’t develop significant woody tissue above ground. Think of them as the free-spirited cousins in the plant world, lacking the sturdy trunk of a tree but making up for it with their graceful, often climbing nature. These plants can live for just one season (annuals) or return year after year (perennials), keeping their growing points tucked safely at or below ground level during harsh weather.

Where Do These Plants Call Home?

The native status of Lathyrus is quite the geographical puzzle. While the genus has made itself at home across an impressively wide range – from Alberta to Wyoming, and from Alaska down to Florida – its native credentials vary dramatically by location. In Hawaii, Lathyrus species are considered non-native plants that have naturalized, reproducing on their own in the wild. Meanwhile, they’re native to St. Pierre and Miquelon, but their status remains undefined across much of Alaska, Canada, Greenland, and the lower 48 states.

You’ll find Lathyrus growing in an astonishing array of locations across North America, including all Canadian provinces and territories, and virtually every U.S. state. This widespread distribution speaks to the genus’s remarkable adaptability.

Why Consider Lathyrus for Your Garden?

These charming plants bring several appealing qualities to the garden table:

  • Aesthetic Appeal: Many Lathyrus species produce showy, often fragrant flowers that come in delightful color variations
  • Versatile Growth Habits: From climbing varieties perfect for trellises to ground-covering types ideal for borders
  • Pollinator Magnets: The flowers are excellent at attracting bees, butterflies, and other beneficial insects
  • Garden Flexibility: Perfect for cottage gardens, wildflower meadows, and naturalized landscapes

Growing Conditions and Care

Most Lathyrus species are fairly accommodating when it comes to growing conditions. They generally prefer:

  • Full sun to partial shade locations
  • Well-draining soil (they don’t appreciate soggy feet)
  • USDA hardiness zones typically ranging from 3-9, depending on the specific species
  • Support structures for climbing varieties

Planting and Propagation Tips

Getting started with Lathyrus is often as simple as direct sowing seeds in your garden. Many gardeners find success with spring planting, though specific timing can vary based on your local climate and the particular species you’re growing.

For climbing varieties, plan ahead by installing trellises, poles, or other support structures. These plants love to reach skyward and will reward your preparation with cascades of beautiful blooms.

A Word About Native Alternatives

Given the complex native status of Lathyrus species across different regions, you might want to consider researching native alternatives specific to your area. Check with your local native plant society or extension office to discover indigenous climbing or flowering plants that could provide similar aesthetic appeal while supporting local ecosystems.

The Bottom Line

Lathyrus plants can make wonderful additions to many garden styles, offering beauty, fragrance, and pollinator benefits. While their native status varies significantly across North America, they’ve proven themselves adaptable and generally well-behaved in cultivation. Whether you choose annual or perennial varieties, these charming plants can add that touch of cottage garden romance many gardeners crave.

Just remember to research the specific species you’re considering for your area, and don’t hesitate to explore native alternatives that might provide similar beauty while supporting your local ecosystem.

Pea

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Fabales

Family

Fabaceae Lindl. - Pea family

Genus

Lathyrus L. - pea

Species

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA