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Narrowleaf Blue Star

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  • Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
  • Mature Height 30 - 36 Inches
  • Mature Spread 30 - 36 Inches
  • Growing Zones 5 - 8

One of the most dramatic perennials that you can plant is Narrowleaf Blue Star. Tiny pale blue, star shaped flowers bloom at the tips of long branches covered in willow-like, green foliage. During the summer that dense foliage contrasts with other broad-leaved perennials or shrubs. In the fall is when Blue Star really lets loose. The intense golden orange of the leaves and branches absolutely glows. 

Narrowleaf Blue Star would be great as a specimen plant in the middle of a garden or dramatically planted as a group of 3 or 5 at the sunny edge of a woodland garden. This herbaceous perennial is deer resistant and resistant to most diseases. The stems can be cut for the flower or the foliage and make a great filler for an autumnal arrangement. Either spring perennials or fall blooming perennials make great companion plants. Autumn Joy Sedum, Aster, Iris and Daylilies are just a few ideas. 

Narrowleaf Blue Star Care

This rapid growing perennial has very few specific requirements. Blue Star grows well in poor soil or enriched soil. The pH is best at a neutral level. A mostly sunny location will help the amount of blooms in spring, although part shade is well tolerated. Well drained soil is a must for this perennial to survive cold winters. Once it is established, Narrowleaf Blue Star is very drought resistant. 

This plant dies completely to the ground during the winter and needs no maintenance until growth begins in the early spring. Cleaning up the old stems and foliage will make way for the rapid regrowth. A mulching of organic compost in the fall will help to feed the soil and improve the water holding capacity over time. A slow release fertilizer can be applied every couple of years to boost fertility. Dividing of Amsonia can be done every 3-4 years if there is a slowing in the amount of blooms. Chopping the root ball into sections is the quickest way to multiply your plants and reinvigorate growth.

Narrowleaf Blue Star Spacing

Perennials can be planted closer together than shrubs or trees, as a rule. The Narrowleaf Blue Star reaches a mature height and width of 3 feet. Planting groups at a spacing of 30 inches, center on center, is recommended.

Narrowleaf Blue Star Information

USDA Hardiness Zones: 5 - 8
Plant Type:
Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight)
Mature Height: 30 - 36 Inches
Mature Spread: 30 - 36 Inches
Spacing: 30 - 36 Inches
Habit: Clumping, Upright
Flower Color(s): Blue
Flower Description:
Bloom Period:
Foliage Type: Herbaceous
Foliage Color(s): Green
Foliage Description:
Seasonal Interest: Spring Flowering, Summer Flowering, Fall Flowering
Watering: Average
Resists: Deer
Tolerates: Drought
Attracts: Butterflies
Container Role:
Uses: Borders, Edging, Wildlife Gardens
Features: Attracts Pollinators, Low Maintenance, Native to North America
Common Name: Narrowleaf Blue Star
Other Name(s):

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Plant Addict Guarantee (Included On All Plant Orders)

Plant Addicts guarantees your plant(s) will arrive happy and healthy, but the plant(s) are being shipped through the mail and accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly.

For information on how to care for you new plant please check out our guide. Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty whether you’re new or an expert. There are many variables outside our control and yours that can cause the demise of your plant(s). Examples would be hungry animals, drought, poor soil conditions, over watering, disease, insects & many other factors. The Plant Addicts Warranty is a 1 year warranty protecting you from all the unknowns and will replace your plant if it moves on to the plant afterlife.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant purchase. We will cover 100% of the price of the plant but the warranty does not cover shipping cost. Simply let us know if your plant has died within one year of receiving it and we’ll get you a new one shipped out. We may ask for photos for documentation purposes but again we’ll try to make it as easy as possible.

For more information, please go to our Shipping & Returns page at the bottom of the website.

Guide: How to Care for Your New Plant(s)

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations

Plant Shipping

Time of Order:

Summer Shipping

  • If there is extreme heat we’ll delay shipping.  
    • We’ll have to review what areas the plants are traveling through along with your location

Once your plant is shipped you’ll receive an email with tracking information. Depending on the above criteria we’ll ship your plant(s) towards beginning of the following week from your order. We put together this helpful guide of what to do when you receive your plants in the mail.

It is important to know that all of our plants are clearly labeled for which growing zones the plant can survive in. The plants are thoroughly trialed and tested in every growing zone before we state the plant can grow in a zone. Again, our #1 priority is to ship the plants to you healthy and ready to thrive in your location. So we will do everything in our power to do so.