Blue Arrow Juniper Growth Rate and Size

Blue Arrow Juniper (Juniperus virginiana ‘Blue Arrow’) stands tall as a striking addition to any landscape, boasting a narrow, columnar form and vibrant blue-green foliage. Its unique appearance, coupled with its adaptability and low-maintenance nature, makes it a popular choice for gardeners and landscapers alike. However, to fully harness the beauty of this evergreen shrub, it’s essential to understand its growth rate and size.

In this comprehensive guide, we’ll delve into the intricacies of Blue Arrow Juniper, exploring its growth habits, size considerations, and tips for promoting healthy development. Whether you’re a seasoned gardener seeking to expand your plant palette or a novice embarking on your first landscaping project, this article will equip you with the knowledge needed to cultivate thriving Blue Arrow Junipers in your outdoor space.

Quick Tips for Blue Arrow Juniper Growth

  1. Choose the Right Location: Opt for a sunny spot with well-drained soil to ensure optimal growth.
  2. Monitor Watering: Blue Arrow Junipers prefer slightly dry conditions, so avoid overwatering to prevent root rot.
  3. Prune Regularly: Shape your Blue Arrow Juniper annually to maintain its desired size and form.
  4. Fertilize Sparingly: Apply a balanced fertilizer in spring to promote healthy growth, but avoid excessive feeding.
  5. Watch for Pests and Diseases: Keep an eye out for common issues like spider mites and cedar-apple rust, and address them promptly.

Now, let’s delve deeper into the growth rate, size considerations, and care practices for Blue Arrow Juniper.

Description of Blue Arrow Juniper

Blue Arrow Juniper is characterized by its narrow, columnar growth habit, reaching heights of up to 12 feet and widths of just 2-3 feet at maturity. Its dense, blue-green foliage provides year-round interest, making it an excellent choice for vertical accents in landscapes.

This evergreen shrub thrives in full sun and well-drained soil, though it can tolerate a range of soil types, including sandy or rocky soils. Once established, Blue Arrow Juniper is drought-tolerant and relatively low-maintenance, requiring minimal watering and pruning.

Growth Rate of Blue Arrow Juniper

The growth rate of Blue Arrow Juniper can vary depending on several factors, including climate, soil conditions, and maintenance practices. In optimal growing conditions, Blue Arrow Juniper typically grows at a moderate rate, adding approximately 6-12 inches of height per year.

However, it’s essential to note that the growth rate may slow with age, especially once the plant reaches maturity. Additionally, environmental stressors such as drought or poor soil quality can hinder growth, so providing proper care is crucial for ensuring steady development.

Size Considerations

At maturity, Blue Arrow Juniper can reach heights of 10-12 feet, with a width of just 2-3 feet. Its narrow, upright form makes it an excellent choice for tight spaces or vertical accents in landscapes. When planning your garden or landscape design, be sure to consider the mature size of Blue Arrow Juniper and provide adequate spacing to accommodate its growth.

Pruning can also play a significant role in managing the size and shape of Blue Arrow Juniper. Regular pruning can help maintain its desired form and prevent it from outgrowing its allotted space. Additionally, container planting is an option for those with limited space or those seeking to control the plant’s size.

Tips for Promoting Healthy Growth

To ensure the health and vitality of your Blue Arrow Juniper, follow these tips:

  1. Watering: Provide deep, infrequent watering, allowing the soil to dry out between waterings to prevent root rot.
  2. Fertilization: Apply a balanced fertilizer in spring to promote healthy growth, but avoid excessive feeding, which can lead to excessive foliage growth.
  3. Pruning: Shape your Blue Arrow Juniper annually to maintain its desired size and form, removing any dead or damaged branches as needed.
  4. Pest and Disease Management: Keep an eye out for common pests such as spider mites or diseases like cedar-apple rust, and address them promptly to prevent damage to your plant.

Planning and Planting

When planting Blue Arrow Juniper, consider the following:

  1. Location: Choose a sunny spot with well-drained soil for optimal growth.
  2. Spacing: Provide adequate spacing between plants to accommodate their mature size, typically 2-3 feet apart.
  3. Container Planting: If space is limited or you prefer to control the plant’s size, consider planting Blue Arrow Juniper in containers.

Maintenance and Care

To keep your Blue Arrow Juniper healthy and vibrant, follow these maintenance tips:

  1. Pruning: Shape your Blue Arrow Juniper annually to maintain its desired size and form, removing any dead or damaged branches as needed.
  2. Mulching: Apply a layer of mulch around the base of the plant to conserve moisture and suppress weeds.
  3. Winter Protection: In colder climates, consider providing winter protection, such as burlap wraps or anti-desiccant sprays, to shield your Blue Arrow Juniper from harsh winter conditions.

Long-Term Outlook

With proper care and maintenance, Blue Arrow Juniper can thrive for many years, adding beauty and interest to your landscape. As your junipers mature, be sure to reassess your landscape plans and make any necessary adjustments to accommodate their growth.

Table of Things You Can Purchase




Blue Arrow Juniper Plant

Mature Blue Arrow Juniper plant (1 gallon)

$20 – $30

Balanced Fertilizer

Slow-release fertilizer for spring application

$10 – $20

Pruning Shears

Sharp, quality pruning shears for shaping junipers

$15 – $30


Organic mulch to conserve moisture and suppress weeds

$5 – $10 (per bag)

Winter Protection Materials

Burlap wraps, anti-desiccant sprays, etc.

$10 – $20

Prices may vary depending on the supplier and location.


Blue Arrow Juniper offers a unique combination of beauty, versatility, and low-maintenance appeal, making it a valuable addition to any landscape. By understanding its growth rate, size considerations, and care requirements, you can cultivate healthy, vibrant junipers that enhance the beauty of your outdoor space for years to come.