When does winter bentgrass bloom?

Agrostis hyemalis blooms from June through August, sending up fine, branching panicles that turn a reddish-purple haze over meadows and fields during this period.

How much light does Agrostis hyemalis need?

It performs best in part sun but tolerates a range from full sun to part shade, making it adaptable to open meadows as well as lightly shaded field edges.

How much water does winter bentgrass require?

Medium soil moisture is ideal, though this grass can handle wetter low spots or drier, sandy soils once it is established.

Do pollinators visit Agrostis hyemalis?

Bees have been observed visiting the flowers, though like most grasses it is primarily wind pollinated rather than dependent on insects.

What does Agrostis hyemalis look like when it flowers?

During its June to August bloom, the plant produces a delicate, open panicle that gives fields and roadsides a soft reddish or purplish tint, a trait behind common names like tickle grass.

Is Winter Bentgrass toxic to livestock?

The USDA PLANTS Database does not flag Winter Bentgrass as toxic to livestock.

Is Winter Bentgrass HOA-friendly?

Winter Bentgrass takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Winter Bentgrass

Name: Pollinator Patch
Author: Pollinator Patch

Agrostis hyemalis

Last reviewed: August 2026

Agrostis hyemalis, or winter bentgrass, blooms from June through August with airy, reddish-purple panicles. It grows in meadows, old fields and roadside edges across the eastern and central United States.

Toxicity unknown

Winter Bentgrass (Agrostis hyemalis) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Winter Bentgrass as toxic to livestock.

Light

part sun

Water

medium

Size

6"–24" H × 4"–12" W

Bloom

Jun, Jul, Aug

Native to

AL, AR, CT, DE and 32 more states

Pollinators

bees

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Winter bentgrass is a fine-textured native grass that forms loose clumps with delicate, airy flower heads. It grows moderately tall and provides a soft, natural texture in partial sun locations with average moisture.

Growing Winter Bentgrass

Grow Winter Bentgrass in part sun and medium water. Mature plants reach 6 to 24 inches tall and spread 4 to 12 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Winter Bentgrass takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Loose, informal growth habit may appear unkempt
Can look weedy or wild compared to traditional landscaping
May go dormant and brown in winter

Wildlife value

The grass flowers attract bees during summer months. As a native grass, it also provides habitat and food sources for various small wildlife.

Common questions

When does winter bentgrass bloom?: Agrostis hyemalis blooms from June through August, sending up fine, branching panicles that turn a reddish-purple haze over meadows and fields during this period.
How much light does Agrostis hyemalis need?: It performs best in part sun but tolerates a range from full sun to part shade, making it adaptable to open meadows as well as lightly shaded field edges.
How much water does winter bentgrass require?: Medium soil moisture is ideal, though this grass can handle wetter low spots or drier, sandy soils once it is established.
Do pollinators visit Agrostis hyemalis?: Bees have been observed visiting the flowers, though like most grasses it is primarily wind pollinated rather than dependent on insects.
What does Agrostis hyemalis look like when it flowers?: During its June to August bloom, the plant produces a delicate, open panicle that gives fields and roadsides a soft reddish or purplish tint, a trait behind common names like tickle grass.
Is Winter Bentgrass toxic to livestock?: The USDA PLANTS Database does not flag Winter Bentgrass as toxic to livestock.
Is Winter Bentgrass HOA-friendly?: Winter Bentgrass takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.

Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

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