grass

Blue Rush

Juncus inflexus 'Lovesick Blues'

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

Requires consistently moist soil

Humidity

Prefers high humidity environments

Lifespan

Perennial

Native To

Europe, Asia, and Africa

Toxicity

Non-toxic

The Story

Plant Bio

Juncus inflexus, commonly known as Blue Rush, is a perennial grass-like plant with stiff, upright stems and dense, bluish-green foliage, producing slender, cylindrical flower spikes with brownish inflorescences. This cultivar is distinguished by its stiff, upright, blue-green foliage that provides strong vertical interest in water gardens, pond margins, and moist landscape areas.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides vertical texture and movement in wetlands and water features.

Helps control erosion along pond edges.

Supports wetland biodiversity and habitat.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Tuck seeds into moist soil in early spring.
Mist cuttings regularly to maintain humidity.
Plant in full sun for best growth.
Water consistently to keep soil wet.
Divide clumps every 2-3 years in spring.
Mulch around base to retain moisture.

Pro Tip

Ensure soil remains consistently moist for optimal growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil wet 🌱
Divide clumps every few years
Plant in full sun for best flowering

Don't

Allow soil to dry out ❌
Over-fertilize, which can cause legginess
Neglect dividing for too long

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wet meadow borderAquatic garden edge

Companion Plants

Sedges Cattails Pickerelweed

Multiply

Propagation Methods

Good to Know

Common Questions

Blue Rush questions

What zones can Blue Rush grow in?

Blue Rush is hardy in USDA Zones 4–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Blue Rush deer resistant?

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

When does Blue Rush bloom?

Blue Rush typically blooms in mid-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 Rush need full sun?

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