grass

Blue Dart Path Rush

Juncus tenuis 'Blue Dart'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Grass

Height

18 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Adaptable from wet to dry

Humidity

Adaptable

Lifespan

Perennial

Native To

North America

Toxicity

Non-toxic

The Story

Plant Bio

Juncus tenuis, or Path Rush, is a tough, adaptable North American native rush known for its ability to thrive in compacted, poor soils, often growing along footpaths and driveways. 'Blue Dart' is a selected cultivar prized for its stiff, upright, blue-green foliage, which is much more ornamental than the typical species. It maintains a neat, vertical form.

Bloom Period:

EarlyLate

Uses & Benefits:

The stiffly upright, blue-green blades provide a strong vertical accent and fine texture in garden designs. It is particularly effective when planted in masses, creating a cool-toned, modern-looking sweep of color.

Its incredible toughness and adaptability make it a problem-solver for challenging sites, including compacted clay soils, wet areas, and places prone to occasional drought. It is also tolerant of road salt.

As a native plant, it supports local ecosystems. The seeds are a food source for various birds and waterfowl. It is an excellent plant for shoreline stabilization and use in stormwater management projects like rain gardens.

Marketplace

Where to Buy

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Planting

How to Grow

Choose a site in full sun for the best blue color.
This plant is highly adaptable to almost any soil type.
Dig a hole as deep and twice as wide as the pot.
Place the plant in the hole so the crown is at soil level.
Backfill the hole and water it in well.
Provide regular water for the first season to establish.

Pro Tip

Use it in rain gardens or bioswales; its tolerance for both periodic flooding and drought makes it a perfect, low-maintenance choice.

Keep It Thriving

Care Guide

Do

Plant in full sun for the most intense blue foliage.
Utilize its tolerance for wet soils near ponds or in rain gardens.
Cut back foliage in late winter for a tidy appearance.
Allow it to self-seed if you want it to naturalize.

Don't

Do not plant in deep shade, as it will become leggy and green.
Avoid letting it completely dry out for long periods during establishment.
Don't worry about poor or compacted soil; it will likely thrive.
Don't fertilize; it prefers lean conditions.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Striking vertical accent in rain gardensTough, colorful plant for pond edgesModern mass planting for textural contrast

Companion Plants

Iris versicolor Asclepias incarnata Panicum virgatum Lobelia siphilitica Eupatorium maculatum

Multiply

Propagation Methods

Good to Know

Common Questions

Blue Dart Path Rush questions

What zones can Blue Dart Path Rush grow in?

Blue Dart Path Rush is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Blue Dart Path Rush deer resistant?

Yes — Blue Dart Path Rush is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Blue Dart Path Rush bloom?

Blue Dart Path Rush typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Blue Dart Path Rush need full sun?

Blue Dart Path Rush does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Blue Dart Path Rush drought tolerant?

Yes — once established (usually after the first full season), Blue Dart Path Rush handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.