Blue Arrow Rush

Blue Arrow Rush - Vertical Blue Accent Perennial | 3-4 Feet Tall, Individual Plants

Add striking vertical color and architectural interest to your landscape with Blue Arrow Rush. This unique ornamental perennial is prized for its upright blue-green foliage that forms slender, pencil-like stems rising straight from the base. Known for its clean vertical structure and bold texture, Blue Arrow Rush creates dramatic contrast in garden beds, borders, and modern landscape designs.

The narrow, cylindrical foliage maintains its vibrant blue-green color throughout the growing season while providing strong vertical lines in the garden. Its tidy clumping habit makes it perfect for adding height without spreading aggressively. Highly tolerant of wet soils and adaptable to a variety of garden conditions, Blue Arrow Rush is an excellent low-maintenance accent plant for both contemporary and naturalistic landscapes.

Why You'll Love the Blue Arrow Rush

Striking Vertical Structure: Upright blue-green stems create bold vertical lines that add architectural interest to garden beds.

Unique Foliage Texture: Slender cylindrical foliage provides a distinctive look compared to traditional ornamental grasses.

Great For Moist Soils: Thrives in moist or wet conditions and works well near water features or rain gardens.

Low Maintenance Perennial: Tough, adaptable, and easy to grow once established.

Blue Arrow Rush Details

Botanical Name: Juncus inflexus 'Blue Arrow'
Type: Herbaceous perennial
Mature Size: 36-48" tall × 18-24" wide (upright clumping habit)
Growth Rate: Moderate growth rate
Light: Full sun to partial shade
Soil: Moist to wet soil adaptable to many soil types
Water: Water regularly until established, thrives in consistently moist soil
USDA Hardiness Zones: 5, 6, 7, 8, 9

Growing Conditions

Soil Adaptability: Performs best in moist to wet soil and tolerates areas that remain consistently damp. Ideal for rain gardens or pond edges.

Light Requirements: Thrives in full sun for the strongest growth but tolerates partial shade in warmer climates.

Hardiness: USDA zones 5-9, making it adaptable to a wide range of temperate climates.

Care Instructions

Watering: Keep soil consistently moist during the growing season. This plant performs especially well in wet soils or near water features.

Pruning: Cut back old foliage in late winter or early spring to encourage fresh new growth.

Fertilizing: Generally requires little fertilization, but a light application of balanced fertilizer in spring can promote vigorous growth.

Landscaping Uses

Versatile Applications: Blue Arrow Rush’s vertical form and moisture tolerance make it suitable for: rain gardens, water features, modern landscape beds, borders, and container plantings.

Architectural Accent Excellence: Its tall, narrow foliage makes it ideal for adding height and texture to garden beds without taking up much horizontal space.

Frequently Asked Questions

How far apart should I plant Blue Arrow Rush? Space plants 18 to 24 inches apart on center to allow room for mature clumps to develop.

Does Blue Arrow Rush tolerate wet soil? Yes, it thrives in moist to wet soil conditions and performs well in rain gardens or near water features.

Is Blue Arrow Rush easy to grow? Yes, it is a tough, low-maintenance perennial that adapts well to many growing conditions once established.