North America Non-native Plant

Common Barley

Botanical name: Hordeum vulgare

USDA symbol: HOVU

Life cycle: annual

Habit: grass

Native status: Non-native, reproduces and persists in the wild in Alaska âš˜ A waif, a non-native that isn't naturalized in Canada âš˜ A waif, a non-native that isn't naturalized in Greenland âš˜ Non-native, reproduces and persists in the wild in Hawaii âš˜ Non-native, reproduces and persists in the wild in the lower 48 states  

Synonyms: Hordeum aegiceras Nees ex Royle (HOAE)  âš˜  Hordeum distichon L. (HODI2)  âš˜  Hordeum hexastichum L., orth. var. (HOHE3)  âš˜  Hordeum hexastichon L. (HOHE6)  âš˜  Hordeum irregulare Aberg & Wiebe (HOIR)  âš˜  Hordeum sativum Pers. (HOSA4)  âš˜  Hordeum vulgare L. ssp. hexastichon (L.) Bonnier & Layens (HOVUH)  âš˜  Hordeum vulgare L. var. trifurcatum (Schltdl.) Alef. (HOVUT)   

Common Barley: An Agricultural Grass with Garden Potential Common barley (Hordeum vulgare) might seem like an unlikely candidate for your garden, but this annual grass has been quietly making appearances in landscapes across North America. Whether you’re curious about growing your own grains or looking for an interesting temporary grass ...

Common Barley: An Agricultural Grass with Garden Potential

Common barley (Hordeum vulgare) might seem like an unlikely candidate for your garden, but this annual grass has been quietly making appearances in landscapes across North America. Whether you’re curious about growing your own grains or looking for an interesting temporary grass for educational purposes, barley offers some unique opportunities for adventurous gardeners.

What Exactly Is Common Barley?

Common barley, also simply called barley, is an annual grass that belongs to the same family as wheat and oats. This upright, bunch-forming grass typically reaches about 2.5 feet tall and grows rapidly during its active period in fall, winter, and spring. Its fine-textured green foliage creates an erect, orderly appearance, and while its small yellow flowers aren’t particularly showy, the brown seed heads that follow are quite conspicuous and add visual interest.

Where Does Barley Come From and Where Does It Grow?

Originally hailing from the Fertile Crescent in the Middle East, common barley is not native to North America. However, it has established itself as a non-native species that reproduces spontaneously across the continent. You’ll find it growing throughout the lower 48 states, Alaska, Hawaii, and most Canadian provinces, from Alberta to Nova Scotia.

Interestingly, barley’s status varies by region. In some areas like Canada and Greenland, it’s considered a waif – an ephemeral, non-native species that shows up but doesn’t persist long-term without human intervention.

Should You Grow Common Barley in Your Garden?

The answer depends on what you’re hoping to achieve. Here are some reasons you might consider it:

  • Educational value: Great for teaching kids about grains and agriculture
  • Quick results: Rapid growth rate means fast satisfaction
  • Wildlife benefits: Provides 5-10% of the diet for water birds and terrestrial birds, plus some food for mammals
  • Temporary coverage: Useful as a short-term ground cover in problem areas

However, there are some drawbacks to consider:

  • Not native: Won’t support native wildlife as effectively as indigenous grasses
  • Limited longevity: As an annual, it dies after one growing season
  • Minimal pollinator benefits: Wind-pollinated, so it doesn’t attract bees or butterflies
  • Agricultural appearance: May look out of place in ornamental gardens

Native Alternatives to Consider

If you’re drawn to barley’s grass-like appearance but want to support native ecosystems, consider these indigenous alternatives that provide similar visual appeal with greater ecological benefits:

  • Native bunch grasses specific to your region
  • Wild rye species (Elymus species)
  • Native sedges for similar texture
  • Regional prairie grasses

How to Grow Common Barley Successfully

If you decide to give barley a try, it’s surprisingly easy to grow. This adaptable grass is quite forgiving and establishes quickly.

Ideal Growing Conditions

Common barley thrives in USDA hardiness zones 3-8 and prefers:

  • Soil: Medium-textured soils with good drainage (pH 5.0-8.5)
  • Sun exposure: Full sun (shade intolerant)
  • Water: Moderate moisture needs (12-100 inches annual precipitation)
  • Temperature: Can tolerate temperatures as low as -43°F
  • Salt tolerance: High, making it suitable for coastal areas

Planting and Care Tips

Growing barley is straightforward:

  • Planting: Direct seed in spring after the last frost
  • Seeding rate: With about 13,600 seeds per pound, a little goes a long way
  • Spacing: Allow adequate space as it forms distinct bunches
  • Fertilization: Medium fertility requirements – avoid over-fertilizing
  • Watering: Moderate drought tolerance, but consistent moisture improves growth
  • Maintenance: Minimal care needed once established

What to Expect Through the Seasons

Barley’s growth pattern is quite different from typical garden plants. Its active growing period spans fall, winter, and spring, with spring bringing the bloom period. By summer, you’ll see the characteristic brown seed heads that make this grass recognizable. The plant has slow regrowth after harvest and no ability to resprout from the roots.

The Bottom Line on Common Barley

Common barley can be an interesting addition to educational gardens, temporary plantings, or agricultural experiments. While it’s not invasive or harmful, it doesn’t offer the same ecological benefits as native grasses. If you’re looking for a quick-growing, easy-care grass for a specific purpose, barley might fit the bill. However, for long-term landscape value and wildlife support, native alternatives will serve your garden – and local ecosystems – much better.

Whether you choose barley or a native alternative, the key is selecting plants that align with your garden goals and local environment. Happy gardening!

Wildlife Status

Want to attract wildlife or keep hungry critters away from your garden? Understanding the relationship between plants and wildlife is key. While plant tags may indicate deer and rabbit resistance, they don't tell the full story. Every gardener has experienced the disappointment of purchasing "deer-resistant" plants only to find them nibbled to the ground!

The extent to which plants are resistant to animal browsing is a matter of degree. Likewise, the extent to which a plant attracts wanted visitors also varies. Whether you want a garden full or free of wildlife, learning about interactions between a plant and wild animals can help you make smarter choices for the garden you desire.

As shown below Shrubby Indian Mallow isn't a large food source for animals or birds. You can confidently add this plant to your garden and rest assured knowing it's unlikely to be devoured by four-legged visitors.

Small animals

2-5% of diet

Sparsely used as cover

Large animals

2-5% of diet

Sparsely used as cover

Terrestrial birds

5-10% of diet

Infrequently used as cover

Water birds

5-10% of diet

Infrequently used as cover

Sources:

Martin, A.C., H.S. Zim, and A.L. Nelson. 1951. American wildlife and plants: A guide to wildlife food habits. Dover Publications. New York.

Common Barley

Classification

Group

Monocot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Liliopsida - Monocotyledons

Subclass

Commelinidae

Order

Cyperales

Family

Poaceae Barnhart - Grass family

Genus

Hordeum L. - barley

Species

Hordeum vulgare L. - common barley

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