North America Non-native Plant

Timothy

Botanical name: Phleum

USDA symbol: PHLEU

Life cycle: annual

Habit: grass

Native status: It's either native or not native in Alaska âš˜ It's either native or not native in Canada 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˜ Non-native, reproduces and persists in the wild in St. Pierre and Miquelon  

Timothy Grass: The Humble Hay Crop That’s More Than Meets the Eye If you’ve ever driven past a farm field and wondered about those tall grasses swaying in the breeze, there’s a good chance you were looking at timothy grass (Phleum). This unassuming member of the grass family has been ...

Timothy Grass: The Humble Hay Crop That’s More Than Meets the Eye

If you’ve ever driven past a farm field and wondered about those tall grasses swaying in the breeze, there’s a good chance you were looking at timothy grass (Phleum). This unassuming member of the grass family has been quietly feeding livestock for centuries, but does it have a place in your home landscape? Let’s dig into what makes this graminoid tick.

What Exactly is Timothy Grass?

Timothy is a cool-season grass that belongs to the graminoid family – basically, it’s what botanists call grasses and grass-like plants. You might know it simply as timothy, and it can grow as either an annual or perennial depending on growing conditions. The plant produces distinctive cylindrical, spike-like seed heads that look almost like fuzzy green caterpillars perched atop slender stems.

Where Does Timothy Call Home?

Here’s where things get interesting from a native gardening perspective. Timothy grass originally hails from Europe and temperate Asia, making it a non-native species in North America. However, it has naturalized so thoroughly across the continent that you’ll find it growing in practically every state and Canadian province, from Alabama to Alaska and everywhere in between.

The grass has established itself as a naturalized species in Hawaii and St. Pierre and Miquelon, where it reproduces on its own in the wild. While its native status remains undefined in most other regions, timothy has become such a common sight that many people assume it’s always been here.

Should You Plant Timothy in Your Garden?

Let’s be honest – timothy grass isn’t going to win any beauty contests in the ornamental garden world. Its aesthetic appeal is more functional farmhouse than Instagram-worthy landscape design. The fine-textured foliage and simple seed heads have a quiet, understated charm, but they’re not exactly showstoppers.

That said, timothy might find a place in your landscape if you’re aiming for:

  • A naturalized meadow or prairie-style planting
  • Erosion control on slopes
  • Low-maintenance groundcover in less formal areas
  • Wildlife habitat (though benefits are limited)

Growing Timothy: The Basics

If you decide to give timothy a try, you’ll find it’s refreshingly easy to grow. This grass thrives in cool, moist conditions and isn’t particularly fussy about soil types. Here’s what you need to know:

Growing Conditions: Timothy performs best in full sun to partial shade with consistent moisture. It’s happiest in USDA hardiness zones 3-7, where cool temperatures suit its preferences.

Planting Tips: The easiest way to establish timothy is from seed. Broadcast seeds in early spring or fall when soil temperatures are cool. Keep the seeded area consistently moist until germination occurs.

Care Requirements: Once established, timothy is fairly low-maintenance. It will need regular watering during dry spells, especially in warmer climates. The grass can be mowed or left to go to seed, depending on your landscape goals.

The Pollinator Question

Here’s something that might surprise you: timothy grass doesn’t offer much in the way of pollinator benefits. As a wind-pollinated species, it doesn’t produce the nectar and pollen that bees and butterflies are after. While some seed-eating birds might appreciate the seed heads, the wildlife benefits are relatively modest compared to native alternatives.

Consider Native Alternatives

While timothy isn’t classified as invasive or noxious, native plant enthusiasts might want to explore indigenous grass options that provide similar functions with greater ecological benefits. Native bunch grasses and cool-season species can offer the same low-maintenance groundcover benefits while supporting local wildlife and maintaining regional ecosystem integrity.

Some excellent native alternatives might include buffalo grass, blue grama, or regional native fescues, depending on your location and growing conditions.

The Bottom Line

Timothy grass is like that reliable friend who’s always there when you need them – not flashy, but dependable. While it won’t transform your garden into a botanical wonderland, it can serve specific functions in naturalized landscapes or low-maintenance areas. Just remember that choosing native alternatives will give you similar benefits while supporting local ecosystems.

Whether you’re drawn to its agricultural heritage or simply need a tough, easy-care grass for a challenging spot, timothy can certainly earn its keep in the right setting. Just don’t expect it to steal the show!

Timothy

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

Phleum L. - timothy

Species

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